refactor!: major directory restructuring and npx support

- Create agents/ directory, move bmad, requirements, development-essentials - Remove docs/, hooks/, dev-workflow/ directories - Add npx support via github:cexll/myclaude - Add bin/cli.js with --update command for installed modules - Add package.json, skills/README.md, PLUGIN_README.md - Update all references across config.json, README, marketplace.json - Change default module from dev to do - Update CHANGELOG with all 59 tags BREAKING CHANGE: Directory structure changed, docs/hooks removed Generated with SWE-Agent.ai Co-Authored-By: SWE-Agent.ai <noreply@swe-agent.ai>
docs: add commercial licensing contact email
2026-02-05 02:30:26 +08:00 · 2026-01-26 16:57:06 +08:00 · 2026-01-25 22:49:18 +08:00 · 2026-01-25 18:12:40 +08:00 · 2026-01-25 18:04:47 +08:00 · 2026-01-25 17:52:34 +08:00
201 changed files with 15028 additions and 5760 deletions
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -1,209 +1,47 @@
 {
-  "name": "claude-code-dev-workflows",
+  "$schema": "https://anthropic.com/claude-code/marketplace.schema.json",
+  "name": "myclaude",
+  "version": "5.6.1",
+  "description": "Professional multi-agent development workflows with OmO orchestration, Requirements-Driven and BMAD methodologies",
  "owner": {
-    "name": "Claude Code Dev Workflows",
-    "email": "contact@example.com",
-    "url": "https://github.com/cexll/myclaude"
-  },
-  "metadata": {
-    "description": "Professional multi-agent development workflows with Requirements-Driven and BMAD methodologies, featuring 16+ specialized agents and 12+ commands",
-    "version": "1.0.0"
+    "name": "cexll",
+    "email": "evanxian9@gmail.com"
  },
  "plugins": [
    {
-      "name": "requirements-driven-development",
-      "source": "./requirements-driven-workflow/",
-      "description": "Streamlined requirements-driven development workflow with 90% quality gates for practical feature implementation",
-      "version": "1.0.0",
-      "author": {
-        "name": "Claude Code Dev Workflows",
-        "url": "https://github.com/cexll/myclaude"
-      },
-      "homepage": "https://github.com/cexll/myclaude",
-      "repository": "https://github.com/cexll/myclaude",
-      "license": "MIT",
-      "keywords": [
-        "requirements",
-        "workflow",
-        "automation",
-        "quality-gates",
-        "feature-development",
-        "agile",
-        "specifications"
-      ],
-      "category": "workflows",
-      "strict": false,
-      "commands": [
-        "./commands/requirements-pilot.md"
-      ],
-      "agents": [
-        "./agents/requirements-generate.md",
-        "./agents/requirements-code.md",
-        "./agents/requirements-testing.md",
-        "./agents/requirements-review.md"
-      ]
+      "name": "omo",
+      "description": "Multi-agent orchestration for code analysis, bug investigation, fix planning, and implementation with intelligent routing to specialized agents",
+      "version": "5.6.1",
+      "source": "./skills/omo",
+      "category": "development"
    },
    {
-      "name": "bmad-agile-workflow",
-      "source": "./bmad-agile-workflow/",
+      "name": "requirements",
+      "description": "Requirements-driven development workflow with quality gates for practical feature implementation",
+      "version": "5.6.1",
+      "source": "./agents/requirements",
+      "category": "development"
+    },
+    {
+      "name": "bmad",
      "description": "Full BMAD agile workflow with role-based agents (PO, Architect, SM, Dev, QA) and interactive approval gates",
-      "version": "1.0.0",
-      "author": {
-        "name": "Claude Code Dev Workflows",
-        "url": "https://github.com/cexll/myclaude"
-      },
-      "homepage": "https://github.com/cexll/myclaude",
-      "repository": "https://github.com/cexll/myclaude",
-      "license": "MIT",
-      "keywords": [
-        "bmad",
-        "agile",
-        "scrum",
-        "product-owner",
-        "architect",
-        "developer",
-        "qa",
-        "workflow-orchestration"
-      ],
-      "category": "workflows",
-      "strict": false,
-      "commands": [
-        "./commands/bmad-pilot.md"
-      ],
-      "agents": [
-        "./agents/bmad-po.md",
-        "./agents/bmad-architect.md",
-        "./agents/bmad-sm.md",
-        "./agents/bmad-dev.md",
-        "./agents/bmad-qa.md",
-        "./agents/bmad-orchestrator.md",
-        "./agents/bmad-review.md"
-      ]
+      "version": "5.6.1",
+      "source": "./agents/bmad",
+      "category": "development"
    },
    {
-      "name": "development-essentials",
-      "source": "./development-essentials/",
+      "name": "dev-kit",
      "description": "Essential development commands for coding, debugging, testing, optimization, and documentation",
-      "version": "1.0.0",
-      "author": {
-        "name": "Claude Code Dev Workflows",
-        "url": "https://github.com/cexll/myclaude"
-      },
-      "homepage": "https://github.com/cexll/myclaude",
-      "repository": "https://github.com/cexll/myclaude",
-      "license": "MIT",
-      "keywords": [
-        "code",
-        "debug",
-        "test",
-        "optimize",
-        "review",
-        "bugfix",
-        "refactor",
-        "documentation"
-      ],
-      "category": "essentials",
-      "strict": false,
-      "commands": [
-        "./commands/code.md",
-        "./commands/debug.md",
-        "./commands/test.md",
-        "./commands/optimize.md",
-        "./commands/review.md",
-        "./commands/bugfix.md",
-        "./commands/refactor.md",
-        "./commands/docs.md",
-        "./commands/ask.md",
-        "./commands/think.md"
-      ],
-      "agents": [
-        "./agents/code.md",
-        "./agents/bugfix.md",
-        "./agents/bugfix-verify.md",
-        "./agents/optimize.md",
-        "./agents/debug.md"
-      ]
+      "version": "5.6.1",
+      "source": "./agents/development-essentials",
+      "category": "productivity"
    },
    {
-      "name": "codex-cli",
-      "source": "./skills/codex/",
-      "description": "Execute Codex CLI for code analysis, refactoring, and automated code changes with file references (@syntax) and structured output",
-      "version": "1.0.0",
-      "author": {
-        "name": "Claude Code Dev Workflows",
-        "url": "https://github.com/cexll/myclaude"
-      },
-      "homepage": "https://github.com/cexll/myclaude",
-      "repository": "https://github.com/cexll/myclaude",
-      "license": "MIT",
-      "keywords": [
-        "codex",
-        "code-analysis",
-        "refactoring",
-        "automation",
-        "gpt-5",
-        "ai-coding"
-      ],
-      "category": "essentials",
-      "strict": false,
-      "skills": [
-        "./SKILL.md"
-      ]
-    },
-    {
-      "name": "gemini-cli",
-      "source": "./skills/gemini/",
-      "description": "Execute Gemini CLI for AI-powered code analysis and generation with Google's latest Gemini models",
-      "version": "1.0.0",
-      "author": {
-        "name": "Claude Code Dev Workflows",
-        "url": "https://github.com/cexll/myclaude"
-      },
-      "homepage": "https://github.com/cexll/myclaude",
-      "repository": "https://github.com/cexll/myclaude",
-      "license": "MIT",
-      "keywords": [
-        "gemini",
-        "google-ai",
-        "code-analysis",
-        "code-generation",
-        "ai-reasoning"
-      ],
-      "category": "essentials",
-      "strict": false,
-      "skills": [
-        "./SKILL.md"
-      ]
-    },
-    {
-      "name": "dev-workflow",
-      "source": "./dev-workflow/",
-      "description": "Minimal lightweight development workflow with requirements clarification, parallel codex execution, and mandatory 90% test coverage",
-      "version": "1.0.0",
-      "author": {
-        "name": "Claude Code Dev Workflows",
-        "url": "https://github.com/cexll/myclaude"
-      },
-      "homepage": "https://github.com/cexll/myclaude",
-      "repository": "https://github.com/cexll/myclaude",
-      "license": "MIT",
-      "keywords": [
-        "dev",
-        "workflow",
-        "codex",
-        "testing",
-        "coverage",
-        "concurrent",
-        "lightweight"
-      ],
-      "category": "workflows",
-      "strict": false,
-      "commands": [
-        "./commands/dev.md"
-      ],
-      "agents": [
-        "./agents/dev-plan-generator.md"
-      ]
+      "name": "sparv",
+      "description": "Minimal SPARV workflow (Specify→Plan→Act→Review→Vault) with 10-point spec gate, unified journal, 2-action saves, 3-failure protocol, and EHRB risk detection",
+      "version": "1.1.0",
+      "source": "./skills/sparv",
+      "category": "development"
    }
  ]
 }
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -74,7 +74,7 @@ jobs:
          if [ "${{ matrix.goos }}" = "windows" ]; then
            OUTPUT_NAME="${OUTPUT_NAME}.exe"
          fi
-          go build -ldflags="-s -w -X main.version=${VERSION}" -o ${OUTPUT_NAME} .
+          go build -ldflags="-s -w -X main.version=${VERSION}" -o ${OUTPUT_NAME} ./cmd/codeagent-wrapper
          chmod +x ${OUTPUT_NAME}
          echo "artifact_path=codeagent-wrapper/${OUTPUT_NAME}" >> $GITHUB_OUTPUT

--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@
 __pycache__
 .coverage
 coverage.out
+references
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,451 @@

 All notable changes to this project will be documented in this file.

+## [6.0.0] - 2026-01-26
+
+### 🚀 Features
+
+- support `npx github:cexll/myclaude` for installation and execution
+- default module changed from `dev` to `do`
+
+### 🚜 Refactor
+
+- restructure: create `agents/` and move `bmad-agile-workflow` → `agents/bmad`, `requirements-driven-workflow` → `agents/requirements`, `development-essentials` → `agents/development-essentials`
+- remove legacy directories: `docs/`, `hooks/`, `dev-workflow/`
+- update references across `config.json`, `README.md`, `README_CN.md`, `marketplace.json`, etc.
+
+### 📚 Documentation
+
+- add `skills/README.md` and `PLUGIN_README.md`
+
+### 💼 Other
+
+- add `package.json` and `bin/cli.js` for npx packaging
+
+## [6.1.5] - 2026-01-25
+
+
+### 🐛 Bug Fixes
+
+
+- correct gitignore to not exclude cmd/codeagent-wrapper
+
+## [6.1.4] - 2026-01-25
+
+
+### 🐛 Bug Fixes
+
+
+- support concurrent tasks with unique state files
+
+## [6.1.3] - 2026-01-25
+
+
+### 🐛 Bug Fixes
+
+
+- correct build path in release workflow
+
+- increase stdoutDrainTimeout from 100ms to 500ms
+
+## [6.1.2] - 2026-01-24
+
+
+### 🐛 Bug Fixes
+
+
+- use ANTHROPIC_AUTH_TOKEN for Claude CLI env injection
+
+### 💼 Other
+
+
+- update codeagent version
+
+### 📚 Documentation
+
+
+- restructure root READMEs with do as recommended workflow
+
+- update do/omo/sparv module READMEs with detailed workflows
+
+- add README for bmad and requirements modules
+
+### 🧪 Testing
+
+
+- use prefix match for version flag tests
+
+## [6.1.1] - 2026-01-23
+
+
+### 🚜 Refactor
+
+
+- rename feature-dev to do workflow
+
+## [6.1.0] - 2026-01-23
+
+
+### ⚙️ Miscellaneous Tasks
+
+
+- ignore references directory
+
+- add go.work.sum for workspace dependencies
+
+### 🐛 Bug Fixes
+
+
+- read GEMINI_MODEL from ~/.gemini/.env ([#131](https://github.com/cexll/myclaude/issues/131))
+
+- validate non-empty output message before printing
+
+### 🚀 Features
+
+
+- add feature-dev skill with 7-phase workflow
+
+- support \${CLAUDE_PLUGIN_ROOT} variable in hooks config
+
+## [6.0.0-alpha1] - 2026-01-20
+
+
+### 🐛 Bug Fixes
+
+
+- add missing cmd/codeagent/main.go entry point
+
+- update release workflow build path for new directory structure
+
+- write PATH config to both profile and rc files ([#128](https://github.com/cexll/myclaude/issues/128))
+
+### 🚀 Features
+
+
+- add course module with dev, product-requirements and test-cases skills
+
+- add hooks management to install.py
+
+### 🚜 Refactor
+
+
+- restructure codebase to internal/ directory with modular architecture
+
+## [5.6.7] - 2026-01-17
+
+
+### 💼 Other
+
+
+- remove .sparv
+
+### 📚 Documentation
+
+
+- update 'Agent Hierarchy' model for frontend-ui-ux-engineer and document-writer in README ([#127](https://github.com/cexll/myclaude/issues/127))
+
+- update mappings for frontend-ui-ux-engineer and document-writer in README ([#126](https://github.com/cexll/myclaude/issues/126))
+
+### 🚀 Features
+
+
+- add sparv module and interactive plugin manager
+
+- add sparv enhanced rules v1.1
+
+- add sparv skill to claude-plugin v1.1.0
+
+- feat sparv skill
+
+## [5.6.6] - 2026-01-16
+
+
+### 🐛 Bug Fixes
+
+
+- remove extraneous dash arg for opencode stdin mode ([#124](https://github.com/cexll/myclaude/issues/124))
+
+### 💼 Other
+
+
+- update readme
+
+## [5.6.5] - 2026-01-16
+
+
+### 🐛 Bug Fixes
+
+
+- correct default models for oracle and librarian agents ([#120](https://github.com/cexll/myclaude/issues/120))
+
+### 🚀 Features
+
+
+- feat dev skill
+
+## [5.6.4] - 2026-01-15
+
+
+### 🐛 Bug Fixes
+
+
+- filter codex 0.84.0 stderr noise logs ([#122](https://github.com/cexll/myclaude/issues/122))
+
+- filter codex stderr noise logs
+
+## [5.6.3] - 2026-01-14
+
+
+### ⚙️ Miscellaneous Tasks
+
+
+- bump codeagent-wrapper version to 5.6.3
+
+### 🐛 Bug Fixes
+
+
+- update version tests to match 5.6.3
+
+- use config override for codex reasoning effort
+
+## [5.6.2] - 2026-01-14
+
+
+### 🐛 Bug Fixes
+
+
+- propagate SkipPermissions to parallel tasks ([#113](https://github.com/cexll/myclaude/issues/113))
+
+- add timeout for Windows process termination
+
+- reject dash as workdir parameter ([#118](https://github.com/cexll/myclaude/issues/118))
+
+### 📚 Documentation
+
+
+- add OmO workflow to README and fix plugin marketplace structure
+
+### 🚜 Refactor
+
+
+- remove sisyphus agent and unused code
+
+## [5.6.1] - 2026-01-13
+
+
+### 🐛 Bug Fixes
+
+
+- add sleep in fake script to prevent CI race condition
+
+- fix gemini env load
+
+- fix omo
+
+### 🚀 Features
+
+
+- add reasoning effort config for codex backend
+
+## [5.6.0] - 2026-01-13
+
+
+### 📚 Documentation
+
+
+- update FAQ for default bypass/skip-permissions behavior
+
+### 🚀 Features
+
+
+- default to skip-permissions and bypass-sandbox
+
+- add omo module for multi-agent orchestration
+
+### 🚜 Refactor
+
+
+- streamline agent documentation and remove sisyphus
+
+## [5.5.0] - 2026-01-12
+
+
+### 🐛 Bug Fixes
+
+
+- 修复 Gemini init 事件 session_id 未提取的问题 ([#111](https://github.com/cexll/myclaude/issues/111))
+
+- fix codeagent skill TaskOutput
+
+### 💼 Other
+
+
+- Merge branch 'master' of github.com:cexll/myclaude
+
+- add test-cases skill
+
+- add browser skill
+
+### 🚀 Features
+
+
+- add multi-agent support with yolo mode
+
+## [5.4.4] - 2026-01-08
+
+
+### 💼 Other
+
+
+- 修复 Windows 后端退出：taskkill 结束进程树 + turn.completed 支持 ([#108](https://github.com/cexll/myclaude/issues/108))
+
+## [5.4.3] - 2026-01-06
+
+
+### 🐛 Bug Fixes
+
+
+- support model parameter for all backends, auto-inject from settings ([#105](https://github.com/cexll/myclaude/issues/105))
+
+### 📚 Documentation
+
+
+- add FAQ Q5 for permission/sandbox env vars
+
+### 🚀 Features
+
+
+- feat skill-install install script and security scan
+
+- add uninstall scripts with selective module removal
+
+## [5.4.2] - 2025-12-31
+
+
+### 🐛 Bug Fixes
+
+
+- replace setx with reg add to avoid 1024-char PATH truncation ([#101](https://github.com/cexll/myclaude/issues/101))
+
+## [5.4.1] - 2025-12-26
+
+
+### 🐛 Bug Fixes
+
+
+- 移除未知事件格式的日志噪声 ([#96](https://github.com/cexll/myclaude/issues/96))
+
+- prevent duplicate PATH entries on reinstall ([#95](https://github.com/cexll/myclaude/issues/95))
+
+### 📚 Documentation
+
+
+- 添加 FAQ 常见问题章节
+
+- update troubleshooting with idempotent PATH commands ([#95](https://github.com/cexll/myclaude/issues/95))
+
+### 🚀 Features
+
+
+- Add intelligent backend selection based on task complexity ([#61](https://github.com/cexll/myclaude/issues/61))
+
+## [5.4.0] - 2025-12-24
+
+
+### 🐛 Bug Fixes
+
+
+- Minor issues #12 and #13 - ASCII mode and performance optimization
+
+- code review fixes for PR #94 - all critical and major issues resolved
+
+### 🚀 Features
+
+
+- v5.4.0 structured execution report ([#94](https://github.com/cexll/myclaude/issues/94))
+
+## [5.2.8] - 2025-12-22
+
+
+### ⚙️ Miscellaneous Tasks
+
+
+- simplify release workflow to use GitHub auto-generated notes
+
+### 🐛 Bug Fixes
+
+
+- correct settings.json filename and bump version to v5.2.8
+
+## [5.2.7] - 2025-12-21
+
+
+### ⚙️ Miscellaneous Tasks
+
+
+- bump version to v5.2.7
+
+### 🐛 Bug Fixes
+
+
+- allow claude backend to read env from setting.json while preventing recursion ([#92](https://github.com/cexll/myclaude/issues/92))
+
+- comprehensive security and quality improvements for PR #85 & #87 ([#90](https://github.com/cexll/myclaude/issues/90))
+
+- Parser重复解析优化 + 严重bug修复 + PR #86兼容性 ([#88](https://github.com/cexll/myclaude/issues/88))
+
+### 💼 Other
+
+
+- Improve backend termination after message and extend timeout ([#86](https://github.com/cexll/myclaude/issues/86))
+
+### 🚀 Features
+
+
+- add millisecond-precision timestamps to all log entries ([#91](https://github.com/cexll/myclaude/issues/91))
+
+## [5.2.6] - 2025-12-19
+
+
+### 🐛 Bug Fixes
+
+
+- filter noisy stderr output from gemini backend ([#83](https://github.com/cexll/myclaude/issues/83))
+
+- 修復 wsl install.sh 格式問題 ([#78](https://github.com/cexll/myclaude/issues/78))
+
+### 💼 Other
+
+
+- update all readme
+
+- BMADh和Requirements-Driven支持根据语义生成对应的文档 ([#82](https://github.com/cexll/myclaude/issues/82))
+
+## [5.2.5] - 2025-12-17
+
+
+### 🐛 Bug Fixes
+
+
+- 修复多 backend 并行日志 PID 混乱并移除包装格式 ([#74](https://github.com/cexll/myclaude/issues/74)) ([#76](https://github.com/cexll/myclaude/issues/76))
+
+- replace "Codex" to "codeagent" in dev-plan-generator subagent
+
+- 修復 win python install.py
+
+### 💼 Other
+
+
+- Merge pull request #71 from aliceric27/master
+
+- Merge branch 'cexll:master' into master
+
+- Merge pull request #72 from changxvv/master
+
+- update changelog
+
+- update codeagent skill backend select
+
 ## [5.2.4] - 2025-12-16


--- a/13
+++ b/13
@@ -7,12 +7,12 @@
 help:
 	@echo "Claude Code Multi-Agent Workflow - Quick Deployment"
 	@echo ""
-	@echo "Recommended installation: python3 install.py --install-dir ~/.claude"
+	@echo "Recommended installation: npx github:cexll/myclaude"
 	@echo ""
 	@echo "Usage: make [target]"
 	@echo ""
 	@echo "Targets:"
-	@echo "  install              - LEGACY: install all configurations (prefer install.py)"
+	@echo "  install              - LEGACY: install all configurations (prefer npx github:cexll/myclaude)"
 	@echo "  deploy-bmad          - Deploy BMAD workflow (bmad-pilot)"
 	@echo "  deploy-requirements  - Deploy Requirements workflow (requirements-pilot)"
 	@echo "  deploy-essentials    - Deploy Development Essentials workflow"
@@ -31,16 +31,16 @@ CLAUDE_CONFIG_DIR = ~/.claude
 SPECS_DIR = .claude/specs

 # Workflow directories
-BMAD_DIR = bmad-agile-workflow
-REQUIREMENTS_DIR = requirements-driven-workflow
-ESSENTIALS_DIR = development-essentials
+BMAD_DIR = agents/bmad
+REQUIREMENTS_DIR = agents/requirements
+ESSENTIALS_DIR = agents/development-essentials
 ADVANCED_DIR = advanced-ai-agents
 OUTPUT_STYLES_DIR = output-styles

 # Install all configurations
 install: deploy-all
 	@echo "⚠️  LEGACY PATH: make install will be removed in future versions."
-	@echo "    Prefer: python3 install.py --install-dir ~/.claude"
+	@echo "    Prefer: npx github:cexll/myclaude"
 	@echo "✅ Installation complete!"

 # Deploy BMAD workflow
@@ -159,4 +159,3 @@ changelog:
 	@echo ""
 	@echo "Preview the changes:"
 	@echo "  git diff CHANGELOG.md"
-
--- a/PLUGIN_README.md
+++ b/PLUGIN_README.md
@@ -0,0 +1,18 @@
+# Plugin System
+
+Claude Code plugins for this repo are defined in `.claude-plugin/marketplace.json`.
+
+## Install
+
+```bash
+/plugin marketplace add cexll/myclaude
+/plugin list
+```
+
+## Available Plugins
+
+- `bmad` - BMAD workflow (`./agents/bmad`)
+- `requirements` - requirements-driven workflow (`./agents/requirements`)
+- `dev-kit` - development essentials (`./agents/development-essentials`)
+- `omo` - orchestration skill (`./skills/omo`)
+- `sparv` - SPARV workflow (`./skills/sparv`)
--- a/README.md
+++ b/README.md
@@ -3,367 +3,102 @@
 # Claude Code Multi-Agent Workflow System

 [![Run in Smithery](https://smithery.ai/badge/skills/cexll)](https://smithery.ai/skills?ns=cexll&utm_source=github&utm_medium=badge)
-
-
 [![License: AGPL-3.0](https://img.shields.io/badge/License-AGPL_v3-blue.svg)](https://www.gnu.org/licenses/agpl-3.0)
 [![Claude Code](https://img.shields.io/badge/Claude-Code-blue)](https://claude.ai/code)
-[![Version](https://img.shields.io/badge/Version-5.2-green)](https://github.com/cexll/myclaude)
+[![Version](https://img.shields.io/badge/Version-6.x-green)](https://github.com/cexll/myclaude)

-> AI-powered development automation with multi-backend execution (Codex/Claude/Gemini)
+> AI-powered development automation with multi-backend execution (Codex/Claude/Gemini/OpenCode)

-## Core Concept: Multi-Backend Architecture
-
-This system leverages a **dual-agent architecture** with pluggable AI backends:
-
-| Role | Agent | Responsibility |
-|------|-------|----------------|
-| **Orchestrator** | Claude Code | Planning, context gathering, verification, user interaction |
-| **Executor** | codeagent-wrapper | Code editing, test execution (Codex/Claude/Gemini backends) |
-
-**Why this separation?**
- Claude Code excels at understanding context and orchestrating complex workflows
- Specialized backends (Codex for code, Claude for reasoning, Gemini for prototyping) excel at focused execution
- Backend selection via `--backend codex|claude|gemini` matches the model to the task
-
-## Quick Start(Please execute in Powershell on Windows)
+## Quick Start

 ```bash
-git clone https://github.com/cexll/myclaude.git
-cd myclaude
-python3 install.py --install-dir ~/.claude
+npx github:cexll/myclaude
 ```

-## Workflows Overview
+## Modules Overview

-### 1. Dev Workflow (Recommended)
-
-**The primary workflow for most development tasks.**
-
-```bash
-/dev "implement user authentication with JWT"
-```
-
-**6-Step Process:**
-1. **Requirements Clarification** - Interactive Q&A to clarify scope
-2. **Codex Deep Analysis** - Codebase exploration and architecture decisions
-3. **Dev Plan Generation** - Structured task breakdown with test requirements
-4. **Parallel Execution** - Codex executes tasks concurrently
-5. **Coverage Validation** - Enforce ≥90% test coverage
-6. **Completion Summary** - Report with file changes and coverage stats
-
-**Key Features:**
- Claude Code orchestrates, Codex executes all code changes
- Automatic task parallelization for speed
- Mandatory 90% test coverage gate
- Rollback on failure
-
-**Best For:** Feature development, refactoring, bug fixes with tests
-
---
-
-### 2. BMAD Agile Workflow
-
-**Full enterprise agile methodology with 6 specialized agents.**
-
-```bash
-/bmad-pilot "build e-commerce checkout system"
-```
-
-**Agents:**
-| Agent | Role |
-|-------|------|
-| Product Owner | Requirements & user stories |
-| Architect | System design & tech decisions |
-| Tech Lead | Sprint planning & task breakdown |
-| Developer | Implementation |
-| Code Reviewer | Quality assurance |
-| QA Engineer | Testing & validation |
-
-**Process:**
-```
-Requirements → Architecture → Sprint Plan → Development → Review → QA
-     ↓              ↓             ↓            ↓          ↓       ↓
-   PRD.md      DESIGN.md     SPRINT.md     Code      REVIEW.md  TEST.md
-```
-
-**Best For:** Large features, team coordination, enterprise projects
-
---
-
-### 3. Requirements-Driven Workflow
-
-**Lightweight requirements-to-code pipeline.**
-
-```bash
-/requirements-pilot "implement API rate limiting"
-```
-
-**Process:**
-1. Requirements generation with quality scoring
-2. Implementation planning
-3. Code generation
-4. Review and testing
-
-**Best For:** Quick prototypes, well-defined features
-
---
-
-### 4. Development Essentials
-
-**Direct commands for daily coding tasks.**
-
-| Command | Purpose |
-|---------|---------|
-| `/code` | Implement a feature |
-| `/debug` | Debug an issue |
-| `/test` | Write tests |
-| `/review` | Code review |
-| `/optimize` | Performance optimization |
-| `/refactor` | Code refactoring |
-| `/docs` | Documentation |
-
-**Best For:** Quick tasks, no workflow overhead needed
-
-## Enterprise Workflow Features
-
- **Multi-backend execution:** `codeagent-wrapper --backend codex|claude|gemini` (default `codex`) so you can match the model to the task without changing workflows.
- **GitHub workflow commands:** `/gh-create-issue "short need"` creates structured issues; `/gh-issue-implement 123` pulls issue #123, drives development, and prepares the PR.
- **Skills + hooks activation:** .claude/hooks run automation (tests, reviews), while `.claude/skills/skill-rules.json` auto-suggests the right skills. Keep hooks enabled in `.claude/settings.json` to activate the enterprise workflow helpers.
-
---
-
-## Version Requirements
-
-### Codex CLI
-**Minimum version:** Check compatibility with your installation
-
-The codeagent-wrapper uses these Codex CLI features:
- `codex e` - Execute commands (shorthand for `codex exec`)
- `--skip-git-repo-check` - Skip git repository validation
- `--json` - JSON stream output format
- `-C <workdir>` - Set working directory
- `resume <session_id>` - Resume previous sessions
-
-**Verify Codex CLI is installed:**
-```bash
-which codex
-codex --version
-```
-
-### Claude CLI
-**Minimum version:** Check compatibility with your installation
-
-Required features:
- `--output-format stream-json` - Streaming JSON output format
- `--setting-sources` - Control setting sources (prevents infinite recursion)
- `--dangerously-skip-permissions` - Skip permission prompts (use with caution)
- `-p` - Prompt input flag
- `-r <session_id>` - Resume sessions
-
-**Security Note:** The wrapper only adds `--dangerously-skip-permissions` for Claude when explicitly enabled (e.g. `--skip-permissions` / `CODEAGENT_SKIP_PERMISSIONS=true`). Keep it disabled unless you understand the risk.
-
-**Verify Claude CLI is installed:**
-```bash
-which claude
-claude --version
-```
-
-### Gemini CLI
-**Minimum version:** Check compatibility with your installation
-
-Required features:
- `-o stream-json` - JSON stream output format
- `-y` - Auto-approve prompts (non-interactive mode)
- `-r <session_id>` - Resume sessions
- `-p` - Prompt input flag
-
-**Verify Gemini CLI is installed:**
-```bash
-which gemini
-gemini --version
-```
-
---
+| Module | Description | Documentation |
+|--------|-------------|---------------|
+| [do](skills/do/README.md) | **Recommended** - 7-phase feature development with codeagent orchestration | `/do` command |
+| [omo](skills/omo/README.md) | Multi-agent orchestration with intelligent routing | `/omo` command |
+| [bmad](agents/bmad/README.md) | BMAD agile workflow with 6 specialized agents | `/bmad-pilot` command |
+| [requirements](agents/requirements/README.md) | Lightweight requirements-to-code pipeline | `/requirements-pilot` command |
+| [essentials](agents/development-essentials/README.md) | Core development commands and utilities | `/code`, `/debug`, etc. |
+| [sparv](skills/sparv/README.md) | SPARV workflow (Specify→Plan→Act→Review→Vault) | `/sparv` command |
+| course | Course development (combines dev + product-requirements + test-cases) | Composite module |

 ## Installation

-### Modular Installation (Recommended)
-
 ```bash
-# Install all enabled modules (dev + essentials by default)
-python3 install.py --install-dir ~/.claude
+# Interactive installer (recommended)
+npx github:cexll/myclaude

-# Install specific module
-python3 install.py --module dev
+# List installable items (modules / skills / wrapper)
+npx github:cexll/myclaude --list

-# List available modules
-python3 install.py --list-modules
-
-# Force overwrite existing files
-python3 install.py --force
+# Custom install directory / overwrite
+npx github:cexll/myclaude --install-dir ~/.claude --force
 ```

-### Available Modules
+### Module Configuration

-| Module | Default | Description |
-|--------|---------|-------------|
-| `dev` | ✓ Enabled | Dev workflow + Codex integration |
-| `essentials` | ✓ Enabled | Core development commands |
-| `bmad` | Disabled | Full BMAD agile workflow |
-| `requirements` | Disabled | Requirements-driven workflow |
-
-### What Gets Installed
-
-```
-~/.claude/
-├── bin/
-│   └── codeagent-wrapper    # Main executable
-├── CLAUDE.md                # Core instructions and role definition
-├── commands/                # Slash commands (/dev, /code, etc.)
-├── agents/                  # Agent definitions
-├── skills/
-│   └── codex/
-│       └── SKILL.md         # Codex integration skill
-├── config.json              # Configuration
-└── installed_modules.json   # Installation status
-```
-
-### Customizing Installation Directory
-
-By default, myclaude installs to `~/.claude`. You can customize this using the `INSTALL_DIR` environment variable:
-
-```bash
-# Install to custom directory
-INSTALL_DIR=/opt/myclaude bash install.sh
-
-# Update your PATH accordingly
-export PATH="/opt/myclaude/bin:$PATH"
-```
-
-**Directory Structure:**
- `$INSTALL_DIR/bin/` - codeagent-wrapper binary
- `$INSTALL_DIR/skills/` - Skill definitions
- `$INSTALL_DIR/config.json` - Configuration file
- `$INSTALL_DIR/commands/` - Slash command definitions
- `$INSTALL_DIR/agents/` - Agent definitions
-
-**Note:** When using a custom installation directory, ensure that `$INSTALL_DIR/bin` is added to your `PATH` environment variable.
-
-### Configuration
-
-Edit `config.json` to customize:
+Edit `config.json` to enable/disable modules:

 ```json
 {
-  "version": "1.0",
-  "install_dir": "~/.claude",
  "modules": {
-    "dev": {
-      "enabled": true,
-      "operations": [
-        {"type": "merge_dir", "source": "dev-workflow"},
-        {"type": "copy_file", "source": "memorys/CLAUDE.md", "target": "CLAUDE.md"},
-        {"type": "copy_file", "source": "skills/codex/SKILL.md", "target": "skills/codex/SKILL.md"},
-        {"type": "run_command", "command": "bash install.sh"}
-      ]
-    }
+    "bmad": { "enabled": false },
+    "requirements": { "enabled": false },
+    "essentials": { "enabled": false },
+    "omo": { "enabled": false },
+    "sparv": { "enabled": false },
+    "do": { "enabled": true },
+    "course": { "enabled": false }
  }
 }
 ```

-**Operation Types:**
-| Type | Description |
-|------|-------------|
-| `merge_dir` | Merge subdirs (commands/, agents/) into install dir |
-| `copy_dir` | Copy entire directory |
-| `copy_file` | Copy single file to target path |
-| `run_command` | Execute shell command |
-
---
-
-## Codex Integration
-
-The `codex` skill enables Claude Code to delegate code execution to Codex CLI.
-
-### Usage in Workflows
-
-```bash
-# Codex is invoked via the skill
-codeagent-wrapper - <<'EOF'
-implement @src/auth.ts with JWT validation
-EOF
-```
-
-### Parallel Execution
-
-```bash
-codeagent-wrapper --parallel <<'EOF'
---TASK---
-id: backend_api
-workdir: /project/backend
---CONTENT---
-implement REST endpoints for /api/users
-
---TASK---
-id: frontend_ui
-workdir: /project/frontend
-dependencies: backend_api
---CONTENT---
-create React components consuming the API
-EOF
-```
-
-### Install Codex Wrapper
-
-```bash
-# Automatic (via dev module)
-python3 install.py --module dev
-
-# Manual
-bash install.sh
-```
-
-#### Windows
-
-Windows installs place `codeagent-wrapper.exe` in `%USERPROFILE%\bin`.
-
-```powershell
-# PowerShell (recommended)
-powershell -ExecutionPolicy Bypass -File install.ps1
-
-# Batch (cmd)
-install.bat
-```
-
-**Add to PATH** (if installer doesn't detect it):
-
-```powershell
-# PowerShell - persistent for current user
-[Environment]::SetEnvironmentVariable('PATH', "$HOME\bin;" + [Environment]::GetEnvironmentVariable('PATH','User'), 'User')
-
-# PowerShell - current session only
-$Env:PATH = "$HOME\bin;$Env:PATH"
-```
-
-```batch
-REM cmd.exe - persistent for current user
-setx PATH "%USERPROFILE%\bin;%PATH%"
-```
-
---
-
 ## Workflow Selection Guide

-| Scenario | Recommended Workflow |
-|----------|---------------------|
-| New feature with tests | `/dev` |
-| Quick bug fix | `/debug` or `/code` |
-| Large multi-sprint feature | `/bmad-pilot` |
-| Prototype or POC | `/requirements-pilot` |
-| Code review | `/review` |
-| Performance issue | `/optimize` |
+| Scenario | Recommended |
+|----------|-------------|
+| Feature development (default) | `/do` |
+| Bug investigation + fix | `/omo` |
+| Large enterprise project | `/bmad-pilot` |
+| Quick prototype | `/requirements-pilot` |
+| Simple task | `/code`, `/debug` |

---
+## Core Architecture
+
+| Role | Agent | Responsibility |
+|------|-------|----------------|
+| **Orchestrator** | Claude Code | Planning, context gathering, verification |
+| **Executor** | codeagent-wrapper | Code editing, test execution (Codex/Claude/Gemini/OpenCode) |
+
+## Backend CLI Requirements
+
+| Backend | Required Features |
+|---------|-------------------|
+| Codex | `codex e`, `--json`, `-C`, `resume` |
+| Claude | `--output-format stream-json`, `-r` |
+| Gemini | `-o stream-json`, `-y`, `-r` |
+
+## Directory Structure After Installation
+
+```
+~/.claude/
+├── bin/codeagent-wrapper
+├── CLAUDE.md
+├── commands/
+├── agents/
+├── skills/
+└── config.json
+```
+
+## Documentation
+
+- [codeagent-wrapper](codeagent-wrapper/README.md)
+- [Plugin System](PLUGIN_README.md)

 ## Troubleshooting

@@ -371,191 +106,41 @@ setx PATH "%USERPROFILE%\bin;%PATH%"

 **Codex wrapper not found:**
 ```bash
-# Installer auto-adds PATH, check if configured
-if [[ ":$PATH:" != *":$HOME/.claude/bin:"* ]]; then
-    echo "PATH not configured. Reinstalling..."
-    bash install.sh
-fi
-
-# Or manually add (idempotent command)
-[[ ":$PATH:" != *":$HOME/.claude/bin:"* ]] && echo 'export PATH="$HOME/.claude/bin:$PATH"' >> ~/.zshrc
-```
-
-**Permission denied:**
-```bash
-python3 install.py --install-dir ~/.claude --force
+# Select: codeagent-wrapper
+npx github:cexll/myclaude
 ```

 **Module not loading:**
 ```bash
-# Check installation status
 cat ~/.claude/installed_modules.json
-
-# Reinstall specific module
-python3 install.py --module dev --force
+npx github:cexll/myclaude --force
 ```

-### Version Compatibility Issues
-
-**Backend CLI not found:**
+**Backend CLI errors:**
 ```bash
-# Check if backend CLIs are installed
-which codex
-which claude
-which gemini
-
-# Install missing backends
-# Codex: Follow installation instructions at https://codex.docs
-# Claude: Follow installation instructions at https://claude.ai/docs
-# Gemini: Follow installation instructions at https://ai.google.dev/docs
+which codex && codex --version
+which claude && claude --version
+which gemini && gemini --version
 ```

-**Unsupported CLI flags:**
-```bash
-# If you see errors like "unknown flag" or "invalid option"
+## FAQ

-# Check backend CLI version
-codex --version
-claude --version
-gemini --version
+| Issue | Solution |
+|-------|----------|
+| "Unknown event format" | Logging display issue, can be ignored |
+| Gemini can't read .gitignore files | Remove from .gitignore or use different backend |
+| Codex permission denied | Set `approval_policy = "never"` in ~/.codex/config.yaml |

-# For Codex: Ensure it supports `e`, `--skip-git-repo-check`, `--json`, `-C`, and `resume`
-# For Claude: Ensure it supports `--output-format stream-json`, `--setting-sources`, `-r`
-# For Gemini: Ensure it supports `-o stream-json`, `-y`, `-r`, `-p`
-
-# Update your backend CLI to the latest version if needed
-```
-
-**JSON parsing errors:**
-```bash
-# If you see "failed to parse JSON output" errors
-
-# Verify the backend outputs stream-json format
-codex e --json "test task"  # Should output newline-delimited JSON
-claude --output-format stream-json -p "test"  # Should output stream JSON
-
-# If not, your backend CLI version may be too old or incompatible
-```
-
-**Infinite recursion with Claude backend:**
-```bash
-# The wrapper prevents this with `--setting-sources ""` flag
-# If you still see recursion, ensure your Claude CLI supports this flag
-
-claude --help | grep "setting-sources"
-
-# If flag is not supported, upgrade Claude CLI
-```
-
-**Session resume failures:**
-```bash
-# Check if session ID is valid
-codex history  # List recent sessions
-claude history
-
-# Ensure backend CLI supports session resumption
-codex resume <session_id> "test"  # Should continue from previous session
-claude -r <session_id> "test"
-
-# If not supported, use new sessions instead of resume mode
-```
-
---
-
-## FAQ (Frequently Asked Questions)
-
-### Q1: `codeagent-wrapper` execution fails with "Unknown event format"
-
-**Problem:**
-```
-Unknown event format: {"type":"turn.started"}
-Unknown event format: {"type":"assistant", ...}
-```
-
-**Solution:**
-This is a logging event format display issue and does not affect actual functionality. It will be fixed in the next version. You can ignore these log outputs.
-
-**Related Issue:** [#96](https://github.com/cexll/myclaude/issues/96)
-
---
-
-### Q2: Gemini cannot read files ignored by `.gitignore`
-
-**Problem:**
-When using `codeagent-wrapper --backend gemini`, files in directories like `.claude/` that are ignored by `.gitignore` cannot be read.
-
-**Solution:**
- **Option 1:** Remove `.claude/` from your `.gitignore` file
- **Option 2:** Ensure files that need to be read are not in `.gitignore` list
-
-**Related Issue:** [#75](https://github.com/cexll/myclaude/issues/75)
-
---
-
-### Q3: `/dev` command parallel execution is very slow
-
-**Problem:**
-Using `/dev` command for simple features takes too long (over 30 minutes) with no visibility into task progress.
-
-**Solution:**
-1. **Check logs:** Review `C:\Users\User\AppData\Local\Temp\codeagent-wrapper-*.log` to identify bottlenecks
-2. **Adjust backend:**
-   - Try faster models like `gpt-5.1-codex-max`
-   - Running in WSL may be significantly faster
-3. **Workspace:** Use a single repository instead of monorepo with multiple sub-projects
-
-**Related Issue:** [#77](https://github.com/cexll/myclaude/issues/77)
-
---
-
-### Q4: Codex permission denied with new Go version
-
-**Problem:**
-After upgrading to the new Go-based Codex implementation, execution fails with permission denied errors.
-
-**Solution:**
-Add the following configuration to `~/.codex/config.yaml` (Windows: `c:\user\.codex\config.toml`):
-```yaml
-model = "gpt-5.1-codex-max"
-model_reasoning_effort = "high"
-model_reasoning_summary = "detailed"
-approval_policy = "never"
-sandbox_mode = "workspace-write"
-disable_response_storage = true
-network_access = true
-```
-
-**Key settings:**
- `approval_policy = "never"` - Remove approval restrictions
- `sandbox_mode = "workspace-write"` - Allow workspace write access
- `network_access = true` - Enable network access
-
-**Related Issue:** [#31](https://github.com/cexll/myclaude/issues/31)
-
---
-
-**Still having issues?** Visit [GitHub Issues](https://github.com/cexll/myclaude/issues) to search or report new issues.
-
---
-
-## Documentation
- **[Codeagent-Wrapper Guide](docs/CODEAGENT-WRAPPER.md)** - Multi-backend execution wrapper
- **[Hooks Documentation](docs/HOOKS.md)** - Custom hooks and automation
-
-### Additional Resources
- **[Installation Log](install.log)** - Installation history and troubleshooting
-
---
+See [GitHub Issues](https://github.com/cexll/myclaude/issues) for more.

 ## License

-AGPL-3.0 License - see [LICENSE](LICENSE)
+AGPL-3.0 - see [LICENSE](LICENSE)
+
+### Commercial Licensing
+
+For commercial use without AGPL obligations, contact: evanxian9@gmail.com

 ## Support

- **Issues**: [GitHub Issues](https://github.com/cexll/myclaude/issues)
- **Documentation**: [docs/](docs/)
-
---
-
-**Claude Code + Codex = Better Development** - Orchestration meets execution.
+- [GitHub Issues](https://github.com/cexll/myclaude/issues)
--- a/README_CN.md
+++ b/README_CN.md
@@ -2,63 +2,116 @@

 [![License: AGPL-3.0](https://img.shields.io/badge/License-AGPL_v3-blue.svg)](https://www.gnu.org/licenses/agpl-3.0)
 [![Claude Code](https://img.shields.io/badge/Claude-Code-blue)](https://claude.ai/code)
-[![Version](https://img.shields.io/badge/Version-5.2-green)](https://github.com/cexll/myclaude)
+[![Version](https://img.shields.io/badge/Version-6.x-green)](https://github.com/cexll/myclaude)

-> AI 驱动的开发自动化 - 多后端执行架构 (Codex/Claude/Gemini)
+> AI 驱动的开发自动化 - 多后端执行架构 (Codex/Claude/Gemini/OpenCode)

-## 核心概念：多后端架构
+## 快速开始

-本系统采用**双智能体架构**与可插拔 AI 后端：
+```bash
+npx github:cexll/myclaude
+```
+
+## 模块概览
+
+| 模块 | 描述 | 文档 |
+|------|------|------|
+| [do](skills/do/README.md) | **推荐** - 7 阶段功能开发 + codeagent 编排 | `/do` 命令 |
+| [omo](skills/omo/README.md) | 多智能体编排 + 智能路由 | `/omo` 命令 |
+| [bmad](agents/bmad/README.md) | BMAD 敏捷工作流 + 6 个专业智能体 | `/bmad-pilot` 命令 |
+| [requirements](agents/requirements/README.md) | 轻量级需求到代码流水线 | `/requirements-pilot` 命令 |
+| [essentials](agents/development-essentials/README.md) | 核心开发命令和工具 | `/code`, `/debug` 等 |
+| [sparv](skills/sparv/README.md) | SPARV 工作流 (Specify→Plan→Act→Review→Vault) | `/sparv` 命令 |
+| course | 课程开发（组合 dev + product-requirements + test-cases） | 组合模块 |
+
+## 核心架构

 | 角色 | 智能体 | 职责 |
 |------|-------|------|
-| **编排者** | Claude Code | 规划、上下文收集、验证、用户交互 |
-| **执行者** | codeagent-wrapper | 代码编辑、测试执行（Codex/Claude/Gemini 后端）|
+| **编排者** | Claude Code | 规划、上下文收集、验证 |
+| **执行者** | codeagent-wrapper | 代码编辑、测试执行（Codex/Claude/Gemini/OpenCode 后端）|

-**为什么分离？**
- Claude Code 擅长理解上下文和编排复杂工作流
- 专业后端（Codex 擅长代码、Claude 擅长推理、Gemini 擅长原型）专注执行
- 通过 `--backend codex|claude|gemini` 匹配模型与任务
+## 工作流详解

-## 快速开始（windows上请在Powershell中执行）
+### do 工作流（推荐）
+
+7 阶段功能开发，通过 codeagent-wrapper 编排多个智能体。**大多数功能开发任务的首选工作流。**

 ```bash
-git clone https://github.com/cexll/myclaude.git
-cd myclaude
-python3 install.py --install-dir ~/.claude
+/do "添加用户登录功能"
 ```

-## 工作流概览
+**7 阶段：**
+| 阶段 | 名称 | 目标 |
+|------|------|------|
+| 1 | Discovery | 理解需求 |
+| 2 | Exploration | 映射代码库模式 |
+| 3 | Clarification | 解决歧义（**强制**）|
+| 4 | Architecture | 设计实现方案 |
+| 5 | Implementation | 构建功能（**需审批**）|
+| 6 | Review | 捕获缺陷 |
+| 7 | Summary | 记录结果 |

-### 1. Dev 工作流（推荐）
-
-**大多数开发任务的首选工作流。**
-
-```bash
-/dev "实现 JWT 用户认证"
-```
-
-**6 步流程：**
-1. **需求澄清** - 交互式问答明确范围
-2. **Codex 深度分析** - 代码库探索和架构决策
-3. **开发计划生成** - 结构化任务分解和测试要求
-4. **并行执行** - Codex 并发执行任务
-5. **覆盖率验证** - 强制 ≥90% 测试覆盖率
-6. **完成总结** - 文件变更和覆盖率报告
-
-**核心特性：**
- Claude Code 编排，Codex 执行所有代码变更
- 自动任务并行化提升速度
- 强制 90% 测试覆盖率门禁
- 失败自动回滚
-
-**适用场景：** 功能开发、重构、带测试的 bug 修复
+**智能体：**
+- `code-explorer` - 代码追踪、架构映射
+- `code-architect` - 设计方案、文件规划
+- `code-reviewer` - 代码审查、简化建议
+- `develop` - 实现代码、运行测试

 ---

-### 2. BMAD 敏捷工作流
+### OmO 多智能体编排器

-**包含 6 个专业智能体的完整企业敏捷方法论。**
+基于风险信号智能路由任务到专业智能体。
+
+```bash
+/omo "分析并修复这个认证 bug"
+```
+
+**智能体层级：**
+| 智能体 | 角色 | 后端 |
+|-------|------|------|
+| `oracle` | 技术顾问 | Claude |
+| `librarian` | 外部研究 | Claude |
+| `explore` | 代码库搜索 | OpenCode |
+| `develop` | 代码实现 | Codex |
+| `frontend-ui-ux-engineer` | UI/UX 专家 | Gemini |
+| `document-writer` | 文档撰写 | Gemini |
+
+**常用配方：**
+- 解释代码：`explore`
+- 位置已知的小修复：直接 `develop`
+- Bug 修复（位置未知）：`explore → develop`
+- 跨模块重构：`explore → oracle → develop`
+
+---
+
+### SPARV 工作流
+
+极简 5 阶段工作流：Specify → Plan → Act → Review → Vault。
+
+```bash
+/sparv "实现订单导出功能"
+```
+
+**核心规则：**
+- **10 分规格门**：得分 0-10，必须 >=9 才能进入 Plan
+- **2 动作保存**：每 2 次工具调用写入 journal.md
+- **3 失败协议**：连续 3 次失败后停止并上报
+- **EHRB**：高风险操作需明确确认
+
+**评分维度（各 0-2 分）：**
+1. Value - 为什么做，可验证的收益
+2. Scope - MVP + 不在范围内的内容
+3. Acceptance - 可测试的验收标准
+4. Boundaries - 错误/性能/兼容/安全边界
+5. Risk - EHRB/依赖/未知 + 处理方式
+
+---
+
+### BMAD 敏捷工作流
+
+完整企业敏捷方法论 + 6 个专业智能体。

 ```bash
 /bmad-pilot "构建电商结账系统"
@@ -69,43 +122,36 @@ python3 install.py --install-dir ~/.claude
 |-------|------|
 | Product Owner | 需求与用户故事 |
 | Architect | 系统设计与技术决策 |
-| Tech Lead | Sprint 规划与任务分解 |
+| Scrum Master | Sprint 规划与任务分解 |
 | Developer | 实现 |
 | Code Reviewer | 质量保证 |
 | QA Engineer | 测试与验证 |

-**流程：**
-```
-需求 → 架构 → Sprint计划 → 开发 → 审查 → QA
- ↓      ↓       ↓         ↓      ↓      ↓
-PRD.md DESIGN.md SPRINT.md Code REVIEW.md TEST.md
-```
-
-**适用场景：** 大型功能、团队协作、企业项目
+**审批门：**
+- PRD 完成后（90+ 分）需用户审批
+- 架构完成后（90+ 分）需用户审批

 ---

-### 3. 需求驱动工作流
+### 需求驱动工作流

-**轻量级需求到代码流水线。**
+轻量级需求到代码流水线。

 ```bash
 /requirements-pilot "实现 API 限流"
 ```

-**流程：**
-1. 带质量评分的需求生成
-2. 实现规划
-3. 代码生成
-4. 审查和测试
-
-**适用场景：** 快速原型、明确定义的功能
+**100 分质量评分：**
+- 功能清晰度：30 分
+- 技术具体性：25 分
+- 实现完整性：25 分
+- 业务上下文：20 分

 ---

-### 4. 开发基础命令
+### 开发基础命令

-**日常编码任务的直接命令。**
+日常编码任务的直接命令。

 | 命令 | 用途 |
 |------|------|
@@ -117,308 +163,89 @@ PRD.md DESIGN.md SPRINT.md Code REVIEW.md TEST.md
 | `/refactor` | 代码重构 |
 | `/docs` | 编写文档 |

-**适用场景：** 快速任务，无需工作流开销
-
 ---

 ## 安装

-### 模块化安装（推荐）
-
 ```bash
-# 安装所有启用的模块（默认：dev + essentials）
-python3 install.py --install-dir ~/.claude
+# 交互式安装器（推荐）
+npx github:cexll/myclaude

-# 安装特定模块
-python3 install.py --module dev
+# 列出可安装项（module:* / skill:* / codeagent-wrapper）
+npx github:cexll/myclaude --list

-# 列出可用模块
-python3 install.py --list-modules
-
-# 强制覆盖现有文件
-python3 install.py --force
+# 指定安装目录 / 强制覆盖
+npx github:cexll/myclaude --install-dir ~/.claude --force
 ```

-### 可用模块
+### 模块配置

-| 模块 | 默认 | 描述 |
-|------|------|------|
-| `dev` | ✓ 启用 | Dev 工作流 + Codex 集成 |
-| `essentials` | ✓ 启用 | 核心开发命令 |
-| `bmad` | 禁用 | 完整 BMAD 敏捷工作流 |
-| `requirements` | 禁用 | 需求驱动工作流 |
-
-### 安装内容
-
-```
-~/.claude/
-├── bin/
-│   └── codeagent-wrapper    # 主可执行文件
-├── CLAUDE.md                # 核心指令和角色定义
-├── commands/                # 斜杠命令 (/dev, /code 等)
-├── agents/                  # 智能体定义
-├── skills/
-│   └── codex/
-│       └── SKILL.md         # Codex 集成技能
-├── config.json              # 配置文件
-└── installed_modules.json   # 安装状态
-```
-
-### 自定义安装目录
-
-默认情况下，myclaude 安装到 `~/.claude`。您可以使用 `INSTALL_DIR` 环境变量自定义安装目录：
-
-```bash
-# 安装到自定义目录
-INSTALL_DIR=/opt/myclaude bash install.sh
-
-# 相应更新您的 PATH
-export PATH="/opt/myclaude/bin:$PATH"
-```
-
-**目录结构：**
- `$INSTALL_DIR/bin/` - codeagent-wrapper 可执行文件
- `$INSTALL_DIR/skills/` - 技能定义
- `$INSTALL_DIR/config.json` - 配置文件
- `$INSTALL_DIR/commands/` - 斜杠命令定义
- `$INSTALL_DIR/agents/` - 智能体定义
-
-**注意：** 使用自定义安装目录时，请确保将 `$INSTALL_DIR/bin` 添加到您的 `PATH` 环境变量中。
-
-### 配置
-
-编辑 `config.json` 自定义：
+编辑 `config.json` 启用/禁用模块：

 ```json
 {
-  "version": "1.0",
-  "install_dir": "~/.claude",
  "modules": {
-    "dev": {
-      "enabled": true,
-      "operations": [
-        {"type": "merge_dir", "source": "dev-workflow"},
-        {"type": "copy_file", "source": "memorys/CLAUDE.md", "target": "CLAUDE.md"},
-        {"type": "copy_file", "source": "skills/codex/SKILL.md", "target": "skills/codex/SKILL.md"},
-        {"type": "run_command", "command": "bash install.sh"}
-      ]
-    }
+    "bmad": { "enabled": false },
+    "requirements": { "enabled": false },
+    "essentials": { "enabled": false },
+    "omo": { "enabled": false },
+    "sparv": { "enabled": false },
+    "do": { "enabled": true },
+    "course": { "enabled": false }
  }
 }
 ```

-**操作类型：**
-| 类型 | 描述 |
-|------|------|
-| `merge_dir` | 合并子目录 (commands/, agents/) 到安装目录 |
-| `copy_dir` | 复制整个目录 |
-| `copy_file` | 复制单个文件到目标路径 |
-| `run_command` | 执行 shell 命令 |
-
---
-
-## Codex 集成
-
-`codex` 技能使 Claude Code 能够将代码执行委托给 Codex CLI。
-
-### 工作流中的使用
-
-```bash
-# 通过技能调用 Codex
-codeagent-wrapper - <<'EOF'
-在 @src/auth.ts 中实现 JWT 验证
-EOF
-```
-
-### 并行执行
-
-```bash
-codeagent-wrapper --parallel <<'EOF'
---TASK---
-id: backend_api
-workdir: /project/backend
---CONTENT---
-实现 /api/users 的 REST 端点
-
---TASK---
-id: frontend_ui
-workdir: /project/frontend
-dependencies: backend_api
---CONTENT---
-创建消费 API 的 React 组件
-EOF
-```
-
-### 安装 Codex Wrapper
-
-```bash
-# 自动（通过 dev 模块）
-python3 install.py --module dev
-
-# 手动
-bash install.sh
-```
-
-#### Windows 系统
-
-Windows 系统会将 `codeagent-wrapper.exe` 安装到 `%USERPROFILE%\bin`。
-
-```powershell
-# PowerShell（推荐）
-powershell -ExecutionPolicy Bypass -File install.ps1
-
-# 批处理（cmd）
-install.bat
-```
-
-**添加到 PATH**（如果安装程序未自动检测）：
-
-```powershell
-# PowerShell - 永久添加（当前用户）
-[Environment]::SetEnvironmentVariable('PATH', "$HOME\bin;" + [Environment]::GetEnvironmentVariable('PATH','User'), 'User')
-
-# PowerShell - 仅当前会话
-$Env:PATH = "$HOME\bin;$Env:PATH"
-```
-
-```batch
-REM cmd.exe - 永久添加（当前用户）
-setx PATH "%USERPROFILE%\bin;%PATH%"
-```
-
---
-
 ## 工作流选择指南

-| 场景 | 推荐工作流 |
-|------|----------|
-| 带测试的新功能 | `/dev` |
-| 快速 bug 修复 | `/debug` 或 `/code` |
-| 大型多 Sprint 功能 | `/bmad-pilot` |
-| 原型或 POC | `/requirements-pilot` |
-| 代码审查 | `/review` |
-| 性能问题 | `/optimize` |
+| 场景 | 推荐 |
+|------|------|
+| 功能开发（默认） | `/do` |
+| Bug 调查 + 修复 | `/omo` |
+| 大型企业项目 | `/bmad-pilot` |
+| 快速原型 | `/requirements-pilot` |
+| 简单任务 | `/code`, `/debug` |

---
+## 后端 CLI 要求
+
+| 后端 | 必需功能 |
+|------|----------|
+| Codex | `codex e`, `--json`, `-C`, `resume` |
+| Claude | `--output-format stream-json`, `-r` |
+| Gemini | `-o stream-json`, `-y`, `-r` |

 ## 故障排查

-### 常见问题
-
 **Codex wrapper 未找到：**
 ```bash
-# 安装程序会自动添加 PATH，检查是否已添加
-if [[ ":$PATH:" != *":$HOME/.claude/bin:"* ]]; then
-    echo "PATH not configured. Reinstalling..."
-    bash install.sh
-fi
-
-# 或手动添加（幂等性命令）
-[[ ":$PATH:" != *":$HOME/.claude/bin:"* ]] && echo 'export PATH="$HOME/.claude/bin:$PATH"' >> ~/.zshrc
-```
-
-**权限被拒绝：**
-```bash
-python3 install.py --install-dir ~/.claude --force
+# 选择：codeagent-wrapper
+npx github:cexll/myclaude
 ```

 **模块未加载：**
 ```bash
-# 检查安装状态
 cat ~/.claude/installed_modules.json
-
-# 重新安装特定模块
-python3 install.py --module dev --force
+npx github:cexll/myclaude --force
 ```

---
+## FAQ

-## 常见问题 (FAQ)
+| 问题 | 解决方案 |
+|------|----------|
+| "Unknown event format" | 日志显示问题，可忽略 |
+| Gemini 无法读取 .gitignore 文件 | 从 .gitignore 移除或使用其他后端 |
+| Codex 权限拒绝 | 在 ~/.codex/config.yaml 设置 `approval_policy = "never"` |

-### Q1: `codeagent-wrapper` 执行时报错 "Unknown event format"
-
-**问题描述：**
-执行 `codeagent-wrapper` 时出现错误：
-```
-Unknown event format: {"type":"turn.started"}
-Unknown event format: {"type":"assistant", ...}
-```
-
-**解决方案：**
-这是日志事件流的显示问题，不影响实际功能执行。预计在下个版本中修复。如需排查其他问题，可忽略此日志输出。
-
-**相关 Issue：** [#96](https://github.com/cexll/myclaude/issues/96)
-
---
-
-### Q2: Gemini 无法读取 `.gitignore` 忽略的文件
-
-**问题描述：**
-使用 `codeagent-wrapper --backend gemini` 时，无法读取 `.claude/` 等被 `.gitignore` 忽略的目录中的文件。
-
-**解决方案：**
- **方案一：** 在项目根目录的 `.gitignore` 中取消对 `.claude/` 的忽略
- **方案二：** 确保需要读取的文件不在 `.gitignore` 忽略列表中
-
-**相关 Issue：** [#75](https://github.com/cexll/myclaude/issues/75)
-
---
-
-### Q3: `/dev` 命令并行执行特别慢
-
-**问题描述：**
-使用 `/dev` 命令开发简单功能耗时过长（超过30分钟），无法了解任务执行状态。
-
-**解决方案：**
-1. **检查日志：** 查看 `C:\Users\User\AppData\Local\Temp\codeagent-wrapper-*.log` 分析瓶颈
-2. **调整后端：**
-   - 尝试使用 `gpt-5.1-codex-max` 等更快的模型
-   - 在 WSL 环境下运行速度可能更快
-3. **工作区选择：** 使用独立的代码仓库而非包含多个子项目的 monorepo
-
-**相关 Issue：** [#77](https://github.com/cexll/myclaude/issues/77)
-
---
-
-### Q4: 新版 Go 实现的 Codex 权限不足
-
-**问题描述：**
-升级到新版 Go 实现的 Codex 后，出现权限不足的错误。
-
-**解决方案：**
-在 `~/.codex/config.yaml` 中添加以下配置（Windows: `c:\user\.codex\config.toml`）：
-```yaml
-model = "gpt-5.1-codex-max"
-model_reasoning_effort = "high"
-model_reasoning_summary = "detailed"
-approval_policy = "never"
-sandbox_mode = "workspace-write"
-disable_response_storage = true
-network_access = true
-```
-
-**关键配置说明：**
- `approval_policy = "never"` - 移除审批限制
- `sandbox_mode = "workspace-write"` - 允许工作区写入权限
- `network_access = true` - 启用网络访问
-
-**相关 Issue：** [#31](https://github.com/cexll/myclaude/issues/31)
-
---
-
-**仍有疑问？** 请访问 [GitHub Issues](https://github.com/cexll/myclaude/issues) 搜索或提交新问题。
-
---
+更多问题请访问 [GitHub Issues](https://github.com/cexll/myclaude/issues)。

 ## 许可证

-AGPL-3.0 License - 查看 [LICENSE](LICENSE)
+AGPL-3.0 - 查看 [LICENSE](LICENSE)
+
+### 商业授权
+
+如需商业授权（无需遵守 AGPL 义务），请联系：evanxian9@gmail.com

 ## 支持

- **问题反馈**: [GitHub Issues](https://github.com/cexll/myclaude/issues)
- **文档**: [docs/](docs/)
-
---
-
-**Claude Code + Codex = 更好的开发** - 编排遇见执行。
+- [GitHub Issues](https://github.com/cexll/myclaude/issues)
--- a/agents/bmad/.claude-plugin/plugin.json
+++ b/agents/bmad/.claude-plugin/plugin.json
@@ -0,0 +1,9 @@
+{
+  "name": "bmad",
+  "description": "Full BMAD agile workflow with role-based agents (PO, Architect, SM, Dev, QA) and interactive approval gates",
+  "version": "5.6.1",
+  "author": {
+    "name": "cexll",
+    "email": "cexll@cexll.com"
+  }
+}
--- a/agents/bmad/BMAD-WORKFLOW.md
+++ b/agents/bmad/BMAD-WORKFLOW.md
--- a/agents/bmad/README.md
+++ b/agents/bmad/README.md
@@ -0,0 +1,109 @@
+# bmad - BMAD Agile Workflow
+
+Full enterprise agile methodology with 6 specialized agents, UltraThink analysis, and repository-aware development.
+
+## Installation
+
+```bash
+python install.py --module bmad
+```
+
+## Usage
+
+```bash
+/bmad-pilot <PROJECT_DESCRIPTION> [OPTIONS]
+```
+
+### Options
+
+| Option | Description |
+|--------|-------------|
+| `--skip-tests` | Skip QA testing phase |
+| `--direct-dev` | Skip SM planning, go directly to development |
+| `--skip-scan` | Skip initial repository scanning |
+
+## Workflow Phases
+
+| Phase | Agent | Deliverable | Description |
+|-------|-------|-------------|-------------|
+| 0 | Orchestrator | `00-repo-scan.md` | Repository scanning with UltraThink analysis |
+| 1 | Product Owner (PO) | `01-product-requirements.md` | PRD with 90+ quality score required |
+| 2 | Architect | `02-system-architecture.md` | Technical design with 90+ score required |
+| 3 | Scrum Master (SM) | `03-sprint-plan.md` | Sprint backlog with stories and estimates |
+| 4 | Developer | Implementation code | Multi-sprint implementation |
+| 4.5 | Reviewer | `04-dev-reviewed.md` | Code review (Pass/Pass with Risk/Fail) |
+| 5 | QA Engineer | Test suite | Comprehensive testing and validation |
+
+## Agents
+
+| Agent | Role |
+|-------|------|
+| `bmad-orchestrator` | Repository scanning, workflow coordination |
+| `bmad-po` | Requirements gathering, PRD creation |
+| `bmad-architect` | System design, technology decisions |
+| `bmad-sm` | Sprint planning, task breakdown |
+| `bmad-dev` | Code implementation |
+| `bmad-review` | Code review, quality assessment |
+| `bmad-qa` | Testing, validation |
+
+## Approval Gates
+
+Two mandatory stop points require explicit user approval:
+
+1. **After PRD** (Phase 1 → 2): User must approve requirements before architecture
+2. **After Architecture** (Phase 2 → 3): User must approve design before implementation
+
+## Output Structure
+
+```
+.claude/specs/{feature_name}/
+├── 00-repo-scan.md
+├── 01-product-requirements.md
+├── 02-system-architecture.md
+├── 03-sprint-plan.md
+└── 04-dev-reviewed.md
+```
+
+## UltraThink Methodology
+
+Applied throughout the workflow for deep analysis:
+
+1. **Hypothesis Generation** - Form hypotheses about the problem
+2. **Evidence Collection** - Gather evidence from codebase
+3. **Pattern Recognition** - Identify recurring patterns
+4. **Synthesis** - Create comprehensive understanding
+5. **Validation** - Cross-check findings
+
+## Interactive Confirmation Flow
+
+PO and Architect phases use iterative refinement:
+
+1. Agent produces initial draft + quality score
+2. Orchestrator presents to user with clarification questions
+3. User provides responses
+4. Agent refines until quality >= 90
+5. User confirms to save deliverable
+
+## When to Use
+
+- Large multi-sprint features
+- Enterprise projects requiring documentation
+- Team coordination scenarios
+- Projects needing formal approval gates
+
+## Directory Structure
+
+```
+agents/bmad/
+├── README.md
+├── commands/
+│   └── bmad-pilot.md
+└── agents/
+    ├── bmad-orchestrator.md
+    ├── bmad-po.md
+    ├── bmad-architect.md
+    ├── bmad-sm.md
+    ├── bmad-dev.md
+    ├── bmad-review.md
+    └── bmad-qa.md
+```
--- a/bmad-agile-workflow/agents/bmad-architect.md
+++ b/bmad-agile-workflow/agents/bmad-architect.md
--- a/bmad-agile-workflow/agents/bmad-dev.md
+++ b/bmad-agile-workflow/agents/bmad-dev.md
--- a/bmad-agile-workflow/agents/bmad-orchestrator.md
+++ b/bmad-agile-workflow/agents/bmad-orchestrator.md
--- a/bmad-agile-workflow/agents/bmad-po.md
+++ b/bmad-agile-workflow/agents/bmad-po.md
--- a/bmad-agile-workflow/agents/bmad-qa.md
+++ b/bmad-agile-workflow/agents/bmad-qa.md
--- a/bmad-agile-workflow/agents/bmad-review.md
+++ b/bmad-agile-workflow/agents/bmad-review.md
--- a/bmad-agile-workflow/agents/bmad-sm.md
+++ b/bmad-agile-workflow/agents/bmad-sm.md
--- a/bmad-agile-workflow/commands/bmad-pilot.md
+++ b/bmad-agile-workflow/commands/bmad-pilot.md
--- a/agents/development-essentials/.claude-plugin/plugin.json
+++ b/agents/development-essentials/.claude-plugin/plugin.json
@@ -0,0 +1,9 @@
+{
+  "name": "essentials",
+  "description": "Essential development commands for coding, debugging, testing, optimization, and documentation",
+  "version": "5.6.1",
+  "author": {
+    "name": "cexll",
+    "email": "cexll@cexll.com"
+  }
+}
--- a/agents/development-essentials/DEVELOPMENT-COMMANDS.md
+++ b/agents/development-essentials/DEVELOPMENT-COMMANDS.md
@@ -304,7 +304,7 @@ Deep reasoning and analysis for complex problems.
 ## 🔌 Agent Configuration

 All commands use specialized agents configured in:
- `development-essentials/agents/`
+- `agents/development-essentials/agents/`
 - Agent prompt templates
 - Tool access permissions
 - Output formatting
--- a/agents/development-essentials/README.md
+++ b/agents/development-essentials/README.md
@@ -244,8 +244,8 @@ Development Essentials 模块包含以下专用代理：
 ## 🔗 相关文档

 - [主文档](../README.md) - 项目总览
- [BMAD工作流](../docs/BMAD-WORKFLOW.md) - 完整敏捷流程
- [Requirements工作流](../docs/REQUIREMENTS-WORKFLOW.md) - 轻量级开发流程
+- [BMAD工作流](../agents/bmad/BMAD-WORKFLOW.md) - 完整敏捷流程
+- [Requirements工作流](../agents/requirements/REQUIREMENTS-WORKFLOW.md) - 轻量级开发流程
 - [插件系统](../PLUGIN_README.md) - 插件安装和管理

 ---
--- a/agents/development-essentials/agents/bugfix-verify.md
+++ b/agents/development-essentials/agents/bugfix-verify.md
--- a/agents/development-essentials/agents/bugfix.md
+++ b/agents/development-essentials/agents/bugfix.md
--- a/agents/development-essentials/agents/code.md
+++ b/agents/development-essentials/agents/code.md
--- a/agents/development-essentials/agents/debug.md
+++ b/agents/development-essentials/agents/debug.md
--- a/agents/development-essentials/agents/optimize.md
+++ b/agents/development-essentials/agents/optimize.md
--- a/agents/development-essentials/commands/ask.md
+++ b/agents/development-essentials/commands/ask.md
--- a/agents/development-essentials/commands/bugfix.md
+++ b/agents/development-essentials/commands/bugfix.md
--- a/agents/development-essentials/commands/code.md
+++ b/agents/development-essentials/commands/code.md
--- a/agents/development-essentials/commands/debug.md
+++ b/agents/development-essentials/commands/debug.md
--- a/agents/development-essentials/commands/docs.md
+++ b/agents/development-essentials/commands/docs.md
--- a/agents/development-essentials/commands/enhance-prompt.md
+++ b/agents/development-essentials/commands/enhance-prompt.md
--- a/agents/development-essentials/commands/optimize.md
+++ b/agents/development-essentials/commands/optimize.md
--- a/agents/development-essentials/commands/refactor.md
+++ b/agents/development-essentials/commands/refactor.md
--- a/agents/development-essentials/commands/review.md
+++ b/agents/development-essentials/commands/review.md
--- a/agents/development-essentials/commands/test.md
+++ b/agents/development-essentials/commands/test.md
--- a/agents/development-essentials/commands/think.md
+++ b/agents/development-essentials/commands/think.md
--- a/agents/requirements/.claude-plugin/plugin.json
+++ b/agents/requirements/.claude-plugin/plugin.json
@@ -0,0 +1,9 @@
+{
+  "name": "requirements",
+  "description": "Requirements-driven development workflow with quality gates for practical feature implementation",
+  "version": "5.6.1",
+  "author": {
+    "name": "cexll",
+    "email": "cexll@cexll.com"
+  }
+}
--- a/agents/requirements/README.md
+++ b/agents/requirements/README.md
@@ -0,0 +1,90 @@
+# requirements - Requirements-Driven Workflow
+
+Lightweight requirements-to-code pipeline with interactive quality gates.
+
+## Installation
+
+```bash
+python install.py --module requirements
+```
+
+## Usage
+
+```bash
+/requirements-pilot <FEATURE_DESCRIPTION> [OPTIONS]
+```
+
+### Options
+
+| Option | Description |
+|--------|-------------|
+| `--skip-tests` | Skip testing phase entirely |
+| `--skip-scan` | Skip initial repository scanning |
+
+## Workflow Phases
+
+| Phase | Description | Output |
+|-------|-------------|--------|
+| 0 | Repository scanning | `00-repository-context.md` |
+| 1 | Requirements confirmation | `requirements-confirm.md` (90+ score required) |
+| 2 | Implementation | Code + `requirements-spec.md` |
+
+## Quality Scoring (100-point system)
+
+| Category | Points | Focus |
+|----------|--------|-------|
+| Functional Clarity | 30 | Input/output specs, success criteria |
+| Technical Specificity | 25 | Integration points, constraints |
+| Implementation Completeness | 25 | Edge cases, error handling |
+| Business Context | 20 | User value, priority |
+
+## Sub-Agents
+
+| Agent | Role |
+|-------|------|
+| `requirements-generate` | Create technical specifications |
+| `requirements-code` | Implement functionality |
+| `requirements-review` | Code quality evaluation |
+| `requirements-testing` | Test case creation |
+
+## Approval Gate
+
+One mandatory stop point after Phase 1:
+- Requirements must achieve 90+ quality score
+- User must explicitly approve before implementation begins
+
+## Testing Decision
+
+After code review passes (≥90%):
+- `--skip-tests`: Complete without testing
+- No option: Interactive prompt with smart recommendations based on task complexity
+
+## Output Structure
+
+```
+.claude/specs/{feature_name}/
+├── 00-repository-context.md
+├── requirements-confirm.md
+└── requirements-spec.md
+```
+
+## When to Use
+
+- Quick prototypes
+- Well-defined features
+- Smaller scope tasks
+- When full BMAD workflow is overkill
+
+## Directory Structure
+
+```
+agents/requirements/
+├── README.md
+├── commands/
+│   └── requirements-pilot.md
+└── agents/
+    ├── requirements-generate.md
+    ├── requirements-code.md
+    ├── requirements-review.md
+    └── requirements-testing.md
+```
--- a/agents/requirements/REQUIREMENTS-WORKFLOW.md
+++ b/agents/requirements/REQUIREMENTS-WORKFLOW.md
--- a/requirements-driven-workflow/agents/requirements-code.md
+++ b/requirements-driven-workflow/agents/requirements-code.md
--- a/requirements-driven-workflow/agents/requirements-generate.md
+++ b/requirements-driven-workflow/agents/requirements-generate.md
--- a/requirements-driven-workflow/agents/requirements-review.md
+++ b/requirements-driven-workflow/agents/requirements-review.md
--- a/requirements-driven-workflow/agents/requirements-testing.md
+++ b/requirements-driven-workflow/agents/requirements-testing.md
--- a/requirements-driven-workflow/commands/requirements-pilot.md
+++ b/requirements-driven-workflow/commands/requirements-pilot.md
--- a/bin/cli.js
+++ b/bin/cli.js
@@ -0,0 +1,730 @@
+#!/usr/bin/env node
+"use strict";
+
+const crypto = require("crypto");
+const fs = require("fs");
+const https = require("https");
+const os = require("os");
+const path = require("path");
+const readline = require("readline");
+const zlib = require("zlib");
+const { spawn } = require("child_process");
+
+const REPO = { owner: "cexll", name: "myclaude" };
+const API_HEADERS = {
+  "User-Agent": "myclaude-npx",
+  Accept: "application/vnd.github+json",
+};
+
+function parseArgs(argv) {
+  const out = {
+    installDir: "~/.claude",
+    force: false,
+    dryRun: false,
+    list: false,
+    update: false,
+    tag: null,
+  };
+
+  for (let i = 0; i < argv.length; i++) {
+    const a = argv[i];
+    if (a === "--install-dir") out.installDir = argv[++i];
+    else if (a === "--force") out.force = true;
+    else if (a === "--dry-run") out.dryRun = true;
+    else if (a === "--list") out.list = true;
+    else if (a === "--update") out.update = true;
+    else if (a === "--tag") out.tag = argv[++i];
+    else if (a === "-h" || a === "--help") out.help = true;
+    else throw new Error(`Unknown arg: ${a}`);
+  }
+
+  return out;
+}
+
+function printHelp() {
+  process.stdout.write(
+    [
+      "myclaude (npx installer)",
+      "",
+      "Usage:",
+      "  npx github:cexll/myclaude",
+      "  npx github:cexll/myclaude --list",
+      "  npx github:cexll/myclaude --update",
+      "  npx github:cexll/myclaude --install-dir ~/.claude --force",
+      "",
+      "Options:",
+      "  --install-dir <path>   Default: ~/.claude",
+      "  --force                Overwrite existing files",
+      "  --dry-run              Print actions only",
+      "  --list                 List installable items and exit",
+      "  --update               Update already installed modules",
+      "  --tag <tag>            Install a specific GitHub tag",
+    ].join("\n") + "\n"
+  );
+}
+
+function withTimeout(promise, ms, label) {
+  let timer;
+  const timeout = new Promise((_, reject) => {
+    timer = setTimeout(() => reject(new Error(`Timeout: ${label}`)), ms);
+  });
+  return Promise.race([promise, timeout]).finally(() => clearTimeout(timer));
+}
+
+function httpsGetJson(url) {
+  return new Promise((resolve, reject) => {
+    https
+      .get(url, { headers: API_HEADERS }, (res) => {
+        let body = "";
+        res.setEncoding("utf8");
+        res.on("data", (d) => (body += d));
+        res.on("end", () => {
+          if (res.statusCode && res.statusCode >= 400) {
+            return reject(
+              new Error(`HTTP ${res.statusCode}: ${url}\n${body.slice(0, 500)}`)
+            );
+          }
+          try {
+            resolve(JSON.parse(body));
+          } catch (e) {
+            reject(new Error(`Invalid JSON from ${url}: ${e.message}`));
+          }
+        });
+      })
+      .on("error", reject);
+  });
+}
+
+function downloadToFile(url, outPath) {
+  return new Promise((resolve, reject) => {
+    const file = fs.createWriteStream(outPath);
+    https
+      .get(url, { headers: API_HEADERS }, (res) => {
+        if (
+          res.statusCode &&
+          res.statusCode >= 300 &&
+          res.statusCode < 400 &&
+          res.headers.location
+        ) {
+          file.close();
+          fs.unlink(outPath, () => {
+            downloadToFile(res.headers.location, outPath).then(resolve, reject);
+          });
+          return;
+        }
+        if (res.statusCode && res.statusCode >= 400) {
+          file.close();
+          fs.unlink(outPath, () => {});
+          return reject(new Error(`HTTP ${res.statusCode}: ${url}`));
+        }
+        res.pipe(file);
+        file.on("finish", () => file.close(resolve));
+      })
+      .on("error", (err) => {
+        file.close();
+        fs.unlink(outPath, () => reject(err));
+      });
+  });
+}
+
+async function fetchLatestTag() {
+  const url = `https://api.github.com/repos/${REPO.owner}/${REPO.name}/releases/latest`;
+  const json = await httpsGetJson(url);
+  if (!json || typeof json.tag_name !== "string" || !json.tag_name.trim()) {
+    throw new Error("GitHub API: missing tag_name");
+  }
+  return json.tag_name.trim();
+}
+
+async function fetchRemoteConfig(tag) {
+  const url = `https://api.github.com/repos/${REPO.owner}/${REPO.name}/contents/config.json?ref=${encodeURIComponent(
+    tag
+  )}`;
+  const json = await httpsGetJson(url);
+  if (!json || typeof json.content !== "string") {
+    throw new Error("GitHub contents API: missing config.json content");
+  }
+  const buf = Buffer.from(json.content.replace(/\n/g, ""), "base64");
+  return JSON.parse(buf.toString("utf8"));
+}
+
+async function fetchRemoteSkills(tag) {
+  const url = `https://api.github.com/repos/${REPO.owner}/${REPO.name}/contents/skills?ref=${encodeURIComponent(
+    tag
+  )}`;
+  const json = await httpsGetJson(url);
+  if (!Array.isArray(json)) throw new Error("GitHub contents API: skills is not a directory");
+  return json
+    .filter((e) => e && e.type === "dir" && typeof e.name === "string")
+    .map((e) => e.name)
+    .sort();
+}
+
+function repoRootFromHere() {
+  return path.resolve(__dirname, "..");
+}
+
+function readLocalConfig() {
+  const p = path.join(repoRootFromHere(), "config.json");
+  return JSON.parse(fs.readFileSync(p, "utf8"));
+}
+
+function listLocalSkills() {
+  const root = repoRootFromHere();
+  const skillsDir = path.join(root, "skills");
+  if (!fs.existsSync(skillsDir)) return [];
+  return fs
+    .readdirSync(skillsDir, { withFileTypes: true })
+    .filter((d) => d.isDirectory())
+    .map((d) => d.name)
+    .sort();
+}
+
+function expandHome(p) {
+  if (!p) return p;
+  if (p === "~") return os.homedir();
+  if (p.startsWith("~/")) return path.join(os.homedir(), p.slice(2));
+  return p;
+}
+
+function readInstalledModuleNamesFromStatus(installDir) {
+  const p = path.join(installDir, "installed_modules.json");
+  if (!fs.existsSync(p)) return null;
+  try {
+    const json = JSON.parse(fs.readFileSync(p, "utf8"));
+    const modules = json && json.modules;
+    if (!modules || typeof modules !== "object" || Array.isArray(modules)) return null;
+    return Object.keys(modules)
+      .filter((k) => typeof k === "string" && k.trim())
+      .sort();
+  } catch {
+    return null;
+  }
+}
+
+async function dirExists(p) {
+  try {
+    return (await fs.promises.stat(p)).isDirectory();
+  } catch {
+    return false;
+  }
+}
+
+async function mergeDirLooksInstalled(srcDir, installDir) {
+  if (!(await dirExists(srcDir))) return false;
+  const subdirs = await fs.promises.readdir(srcDir, { withFileTypes: true });
+  for (const d of subdirs) {
+    if (!d.isDirectory()) continue;
+    const srcSub = path.join(srcDir, d.name);
+    const entries = await fs.promises.readdir(srcSub, { withFileTypes: true });
+    for (const e of entries) {
+      if (!e.isFile()) continue;
+      const dst = path.join(installDir, d.name, e.name);
+      if (fs.existsSync(dst)) return true;
+    }
+  }
+  return false;
+}
+
+async function detectInstalledModuleNames(config, repoRoot, installDir) {
+  const mods = (config && config.modules) || {};
+  const installed = [];
+
+  for (const [name, mod] of Object.entries(mods)) {
+    const ops = Array.isArray(mod && mod.operations) ? mod.operations : [];
+    let ok = false;
+
+    for (const op of ops) {
+      const type = op && op.type;
+      if (type === "copy_file" || type === "copy_dir") {
+        const target = typeof op.target === "string" ? op.target : "";
+        if (target && fs.existsSync(path.join(installDir, target))) {
+          ok = true;
+          break;
+        }
+      } else if (type === "merge_dir") {
+        const source = typeof op.source === "string" ? op.source : "";
+        if (source && (await mergeDirLooksInstalled(path.join(repoRoot, source), installDir))) {
+          ok = true;
+          break;
+        }
+      }
+    }
+
+    if (ok) installed.push(name);
+  }
+
+  return installed.sort();
+}
+
+async function updateInstalledModules(installDir, tag, config, dryRun) {
+  const mods = (config && config.modules) || {};
+  if (!Object.keys(mods).length) throw new Error("No modules found in config.json");
+
+  let repoRoot = repoRootFromHere();
+  let tmp = null;
+
+  if (tag) {
+    tmp = path.join(
+      os.tmpdir(),
+      `myclaude-update-${Date.now()}-${crypto.randomBytes(4).toString("hex")}`
+    );
+    await fs.promises.mkdir(tmp, { recursive: true });
+  }
+
+  try {
+    if (tag) {
+      const archive = path.join(tmp, "src.tgz");
+      const url = `https://codeload.github.com/${REPO.owner}/${REPO.name}/tar.gz/refs/tags/${encodeURIComponent(
+        tag
+      )}`;
+      process.stdout.write(`Downloading ${REPO.owner}/${REPO.name}@${tag}...\n`);
+      await downloadToFile(url, archive);
+      process.stdout.write("Extracting...\n");
+      const extracted = path.join(tmp, "src");
+      await extractTarGz(archive, extracted);
+      repoRoot = extracted;
+    } else {
+      process.stdout.write("Offline mode: updating from local package contents.\n");
+    }
+
+    const fromStatus = readInstalledModuleNamesFromStatus(installDir);
+    const installed = fromStatus || (await detectInstalledModuleNames(config, repoRoot, installDir));
+    const toUpdate = installed.filter((name) => Object.prototype.hasOwnProperty.call(mods, name));
+
+    if (!toUpdate.length) {
+      process.stdout.write(`No installed modules found in ${installDir}.\n`);
+      return;
+    }
+
+    if (dryRun) {
+      for (const name of toUpdate) process.stdout.write(`module:${name}\n`);
+      return;
+    }
+
+    await fs.promises.mkdir(installDir, { recursive: true });
+    for (const name of toUpdate) {
+      process.stdout.write(`Updating module: ${name}\n`);
+      await applyModule(name, config, repoRoot, installDir, true);
+    }
+  } finally {
+    if (tmp) await rmTree(tmp);
+  }
+}
+
+function buildItems(config, skills) {
+  const items = [{ id: "codeagent-wrapper", label: "codeagent-wrapper", kind: "wrapper" }];
+
+  const modules = (config && config.modules) || {};
+  for (const [name, mod] of Object.entries(modules)) {
+    const desc = mod && typeof mod.description === "string" ? mod.description : "";
+    items.push({
+      id: `module:${name}`,
+      label: `module:${name}${desc ? ` - ${desc}` : ""}`,
+      kind: "module",
+      moduleName: name,
+    });
+  }
+
+  for (const s of skills) {
+    items.push({ id: `skill:${s}`, label: `skill:${s}`, kind: "skill", skillName: s });
+  }
+
+  return items;
+}
+
+function clearScreen() {
+  process.stdout.write("\x1b[2J\x1b[H");
+}
+
+async function promptMultiSelect(items, title) {
+  if (!process.stdin.isTTY) {
+    throw new Error("No TTY. Use --list or run in an interactive terminal.");
+  }
+
+  let idx = 0;
+  const selected = new Set();
+
+  readline.emitKeypressEvents(process.stdin);
+  process.stdin.setRawMode(true);
+
+  function render() {
+    clearScreen();
+    process.stdout.write(`${title}\n`);
+    process.stdout.write("↑↓ move  Space toggle  Enter confirm  q quit\n\n");
+    for (let i = 0; i < items.length; i++) {
+      const it = items[i];
+      const cursor = i === idx ? ">" : " ";
+      const box = selected.has(it.id) ? "[x]" : "[ ]";
+      process.stdout.write(`${cursor} ${box} ${it.label}\n`);
+    }
+  }
+
+  function cleanup() {
+    process.stdin.setRawMode(false);
+    process.stdin.removeListener("keypress", onKey);
+  }
+
+  function onKey(_, key) {
+    if (!key) return;
+    if (key.name === "c" && key.ctrl) {
+      cleanup();
+      process.exit(130);
+    }
+    if (key.name === "q") {
+      cleanup();
+      process.exit(0);
+    }
+    if (key.name === "up") idx = (idx - 1 + items.length) % items.length;
+    else if (key.name === "down") idx = (idx + 1) % items.length;
+    else if (key.name === "space") {
+      const id = items[idx].id;
+      if (selected.has(id)) selected.delete(id);
+      else selected.add(id);
+    } else if (key.name === "return") {
+      cleanup();
+      clearScreen();
+      const picked = items.filter((it) => selected.has(it.id));
+      return resolvePick(picked);
+    }
+    render();
+  }
+
+  let resolvePick;
+  const result = new Promise((resolve) => {
+    resolvePick = resolve;
+  });
+
+  process.stdin.on("keypress", onKey);
+  render();
+  return result;
+}
+
+function isZeroBlock(b) {
+  for (let i = 0; i < b.length; i++) if (b[i] !== 0) return false;
+  return true;
+}
+
+function tarString(b, start, len) {
+  return b
+    .toString("utf8", start, start + len)
+    .replace(/\0.*$/, "")
+    .trim();
+}
+
+function tarOctal(b, start, len) {
+  const s = tarString(b, start, len);
+  if (!s) return 0;
+  return parseInt(s, 8) || 0;
+}
+
+function safePosixPath(p) {
+  const norm = path.posix.normalize(p);
+  if (norm.startsWith("/") || norm.startsWith("..") || norm.includes("/../")) {
+    throw new Error(`Unsafe path in archive: ${p}`);
+  }
+  return norm;
+}
+
+async function extractTarGz(archivePath, destDir) {
+  await fs.promises.mkdir(destDir, { recursive: true });
+  const gunzip = zlib.createGunzip();
+  const stream = fs.createReadStream(archivePath).pipe(gunzip);
+
+  let buf = Buffer.alloc(0);
+  let file = null;
+  let pad = 0;
+  let zeroBlocks = 0;
+
+  for await (const chunk of stream) {
+    buf = Buffer.concat([buf, chunk]);
+    while (true) {
+      if (pad) {
+        if (buf.length < pad) break;
+        buf = buf.slice(pad);
+        pad = 0;
+      }
+
+      if (!file) {
+        if (buf.length < 512) break;
+        const header = buf.slice(0, 512);
+        buf = buf.slice(512);
+
+        if (isZeroBlock(header)) {
+          zeroBlocks++;
+          if (zeroBlocks >= 2) return;
+          continue;
+        }
+        zeroBlocks = 0;
+
+        const name = tarString(header, 0, 100);
+        const prefix = tarString(header, 345, 155);
+        const full = prefix ? `${prefix}/${name}` : name;
+        const size = tarOctal(header, 124, 12);
+        const mode = tarOctal(header, 100, 8);
+        const typeflag = header[156];
+
+        const rel = safePosixPath(full.split("/").slice(1).join("/"));
+        if (!rel || rel === ".") {
+          file = null;
+          pad = 0;
+          continue;
+        }
+
+        const outPath = path.join(destDir, ...rel.split("/"));
+        if (typeflag === 53) {
+          await fs.promises.mkdir(outPath, { recursive: true });
+          if (mode) await fs.promises.chmod(outPath, mode);
+          file = null;
+          pad = 0;
+          continue;
+        }
+
+        file = { outPath, size, remaining: size, chunks: [], mode };
+        if (size === 0) {
+          await fs.promises.mkdir(path.dirname(outPath), { recursive: true });
+          await fs.promises.writeFile(outPath, Buffer.alloc(0));
+          if (mode) await fs.promises.chmod(outPath, mode);
+          file = null;
+          pad = 0;
+        }
+        continue;
+      }
+
+      if (buf.length < file.remaining) {
+        file.chunks.push(buf);
+        file.remaining -= buf.length;
+        buf = Buffer.alloc(0);
+        break;
+      }
+
+      file.chunks.push(buf.slice(0, file.remaining));
+      buf = buf.slice(file.remaining);
+      file.remaining = 0;
+
+      await fs.promises.mkdir(path.dirname(file.outPath), { recursive: true });
+      await fs.promises.writeFile(file.outPath, Buffer.concat(file.chunks));
+      if (file.mode) await fs.promises.chmod(file.outPath, file.mode);
+
+      pad = (512 - (file.size % 512)) % 512;
+      file = null;
+    }
+  }
+}
+
+async function copyFile(src, dst, force) {
+  if (!force && fs.existsSync(dst)) return;
+  await fs.promises.mkdir(path.dirname(dst), { recursive: true });
+  await fs.promises.copyFile(src, dst);
+  const st = await fs.promises.stat(src);
+  await fs.promises.chmod(dst, st.mode);
+}
+
+async function copyDirRecursive(src, dst, force) {
+  if (fs.existsSync(dst) && !force) return;
+  await fs.promises.mkdir(dst, { recursive: true });
+
+  const entries = await fs.promises.readdir(src, { withFileTypes: true });
+  for (const e of entries) {
+    const s = path.join(src, e.name);
+    const d = path.join(dst, e.name);
+    if (e.isDirectory()) await copyDirRecursive(s, d, force);
+    else if (e.isFile()) await copyFile(s, d, force);
+  }
+}
+
+async function mergeDir(src, installDir, force) {
+  const subdirs = await fs.promises.readdir(src, { withFileTypes: true });
+  for (const d of subdirs) {
+    if (!d.isDirectory()) continue;
+    const srcSub = path.join(src, d.name);
+    const dstSub = path.join(installDir, d.name);
+    await fs.promises.mkdir(dstSub, { recursive: true });
+    const entries = await fs.promises.readdir(srcSub, { withFileTypes: true });
+    for (const e of entries) {
+      if (!e.isFile()) continue;
+      await copyFile(path.join(srcSub, e.name), path.join(dstSub, e.name), force);
+    }
+  }
+}
+
+function runInstallSh(repoRoot, installDir) {
+  return new Promise((resolve, reject) => {
+    const cmd = process.platform === "win32" ? "cmd.exe" : "bash";
+    const args = process.platform === "win32" ? ["/c", "install.bat"] : ["install.sh"];
+    const p = spawn(cmd, args, {
+      cwd: repoRoot,
+      stdio: "inherit",
+      env: { ...process.env, INSTALL_DIR: installDir },
+    });
+    p.on("exit", (code) => {
+      if (code === 0) resolve();
+      else reject(new Error(`install script failed (exit ${code})`));
+    });
+  });
+}
+
+async function rmTree(p) {
+  if (!fs.existsSync(p)) return;
+  if (fs.promises.rm) {
+    await fs.promises.rm(p, { recursive: true, force: true });
+    return;
+  }
+  await fs.promises.rmdir(p, { recursive: true });
+}
+
+async function applyModule(moduleName, config, repoRoot, installDir, force) {
+  const mod = config && config.modules && config.modules[moduleName];
+  if (!mod) throw new Error(`Unknown module: ${moduleName}`);
+  const ops = Array.isArray(mod.operations) ? mod.operations : [];
+
+  for (const op of ops) {
+    const type = op && op.type;
+    if (type === "copy_file") {
+      await copyFile(
+        path.join(repoRoot, op.source),
+        path.join(installDir, op.target),
+        force
+      );
+    } else if (type === "copy_dir") {
+      await copyDirRecursive(
+        path.join(repoRoot, op.source),
+        path.join(installDir, op.target),
+        force
+      );
+    } else if (type === "merge_dir") {
+      await mergeDir(path.join(repoRoot, op.source), installDir, force);
+    } else if (type === "run_command") {
+      const cmd = typeof op.command === "string" ? op.command.trim() : "";
+      if (cmd !== "bash install.sh") {
+        throw new Error(`Refusing run_command: ${cmd || "(empty)"}`);
+      }
+      await runInstallSh(repoRoot, installDir);
+    } else {
+      throw new Error(`Unsupported operation type: ${type}`);
+    }
+  }
+}
+
+async function installSelected(picks, tag, config, installDir, force, dryRun) {
+  const needRepo = picks.some((p) => p.kind !== "wrapper");
+  const needWrapper = picks.some((p) => p.kind === "wrapper");
+
+  if (dryRun) {
+    for (const p of picks) process.stdout.write(`- ${p.id}\n`);
+    return;
+  }
+
+  const tmp = path.join(
+    os.tmpdir(),
+    `myclaude-${Date.now()}-${crypto.randomBytes(4).toString("hex")}`
+  );
+  await fs.promises.mkdir(tmp, { recursive: true });
+
+  try {
+    let repoRoot = repoRootFromHere();
+    if (needRepo || needWrapper) {
+      if (!tag) throw new Error("No tag available to download");
+      const archive = path.join(tmp, "src.tgz");
+      const url = `https://codeload.github.com/${REPO.owner}/${REPO.name}/tar.gz/refs/tags/${encodeURIComponent(
+        tag
+      )}`;
+      process.stdout.write(`Downloading ${REPO.owner}/${REPO.name}@${tag}...\n`);
+      await downloadToFile(url, archive);
+      process.stdout.write("Extracting...\n");
+      const extracted = path.join(tmp, "src");
+      await extractTarGz(archive, extracted);
+      repoRoot = extracted;
+    }
+
+    await fs.promises.mkdir(installDir, { recursive: true });
+
+    for (const p of picks) {
+      if (p.kind === "wrapper") {
+        process.stdout.write("Installing codeagent-wrapper...\n");
+        await runInstallSh(repoRoot, installDir);
+        continue;
+      }
+      if (p.kind === "module") {
+        process.stdout.write(`Installing module: ${p.moduleName}\n`);
+        await applyModule(p.moduleName, config, repoRoot, installDir, force);
+        continue;
+      }
+      if (p.kind === "skill") {
+        process.stdout.write(`Installing skill: ${p.skillName}\n`);
+        await copyDirRecursive(
+          path.join(repoRoot, "skills", p.skillName),
+          path.join(installDir, "skills", p.skillName),
+          force
+        );
+      }
+    }
+  } finally {
+    await rmTree(tmp);
+  }
+}
+
+async function main() {
+  const args = parseArgs(process.argv.slice(2));
+  if (args.help) {
+    printHelp();
+    return;
+  }
+
+  const installDir = expandHome(args.installDir);
+  if (args.list && args.update) throw new Error("Cannot combine --list and --update");
+
+  let tag = args.tag;
+  if (!tag) {
+    try {
+      tag = await withTimeout(fetchLatestTag(), 5000, "fetch latest tag");
+    } catch {
+      tag = null;
+    }
+  }
+
+  let config = null;
+  let skills = [];
+  if (tag) {
+    try {
+      [config, skills] = await withTimeout(
+        Promise.all([fetchRemoteConfig(tag), fetchRemoteSkills(tag)]),
+        8000,
+        "fetch config/skills"
+      );
+    } catch {
+      config = null;
+      skills = [];
+    }
+  }
+
+  if (!config) config = readLocalConfig();
+  if (!skills.length) skills = listLocalSkills();
+
+  if (args.update) {
+    await updateInstalledModules(installDir, tag, config, args.dryRun);
+    process.stdout.write("Done.\n");
+    return;
+  }
+
+  const items = buildItems(config, skills);
+  if (args.list) {
+    for (const it of items) process.stdout.write(`${it.id}\n`);
+    return;
+  }
+
+  const title = tag ? `myclaude installer (latest: ${tag})` : "myclaude installer (offline mode)";
+  const picks = await promptMultiSelect(items, title);
+  if (!picks.length) {
+    process.stdout.write("Nothing selected.\n");
+    return;
+  }
+
+  await installSelected(picks, tag, config, installDir, args.force, args.dryRun);
+  process.stdout.write("Done.\n");
+}
+
+main().catch((err) => {
+  process.stderr.write(`ERROR: ${err && err.message ? err.message : String(err)}\n`);
+  process.exit(1);
+});
--- a/bmad-agile-workflow/.claude-plugin/marketplace.json
+++ b/bmad-agile-workflow/.claude-plugin/marketplace.json
@@ -1,37 +0,0 @@
-{
-  "name": "bmad-agile-workflow",
-  "source": "./",
-  "description": "Full BMAD agile workflow with role-based agents (PO, Architect, SM, Dev, QA) and interactive approval gates",
-  "version": "1.0.0",
-  "author": {
-    "name": "Claude Code Dev Workflows",
-    "url": "https://github.com/cexll/myclaude"
-  },
-  "homepage": "https://github.com/cexll/myclaude",
-  "repository": "https://github.com/cexll/myclaude",
-  "license": "MIT",
-  "keywords": [
-    "bmad",
-    "agile",
-    "scrum",
-    "product-owner",
-    "architect",
-    "developer",
-    "qa",
-    "workflow-orchestration"
-  ],
-  "category": "workflows",
-  "strict": false,
-  "commands": [
-    "./commands/bmad-pilot.md"
-  ],
-  "agents": [
-    "./agents/bmad-po.md",
-    "./agents/bmad-architect.md",
-    "./agents/bmad-sm.md",
-    "./agents/bmad-dev.md",
-    "./agents/bmad-qa.md",
-    "./agents/bmad-orchestrator.md",
-    "./agents/bmad-review.md"
-  ]
-}
--- a/codeagent-wrapper/.github/workflows/ci.yml
+++ b/codeagent-wrapper/.github/workflows/ci.yml
@@ -0,0 +1,39 @@
+name: CI
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        go-version: ["1.21", "1.22"]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+          cache: true
+      - name: Test
+        run: make test
+      - name: Build
+        run: make build
+
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: "1.22"
+          cache: true
+      - name: Lint
+        run: make lint
+
--- a/codeagent-wrapper/.gitignore
+++ b/codeagent-wrapper/.gitignore
@@ -1,6 +1,9 @@
 # Build artifacts
-codeagent-wrapper
-codeagent-wrapper.exe
+bin/
+codeagent
+codeagent.exe
+/codeagent-wrapper
+/codeagent-wrapper.exe
 *.test

 # Coverage reports
@@ -9,3 +12,12 @@ coverage*.out
 cover.out
 cover_*.out
 coverage.html
+
+# Logs
+*.log
+
+# Temp files
+*.tmp
+*.swp
+*~
+.DS_Store
--- a/codeagent-wrapper/Makefile
+++ b/codeagent-wrapper/Makefile
@@ -0,0 +1,37 @@
+GO ?= go
+
+TOOLS_BIN := $(CURDIR)/bin
+TOOLCHAIN ?= go1.22.0
+GOLANGCI_LINT_VERSION := v1.56.2
+STATICCHECK_VERSION := v0.4.7
+
+GOLANGCI_LINT := $(TOOLS_BIN)/golangci-lint
+STATICCHECK := $(TOOLS_BIN)/staticcheck
+
+.PHONY: build test lint clean install
+
+build:
+	$(GO) build -o codeagent ./cmd/codeagent
+	$(GO) build -o codeagent-wrapper ./cmd/codeagent-wrapper
+
+test:
+	$(GO) test ./...
+
+$(GOLANGCI_LINT):
+	@mkdir -p $(TOOLS_BIN)
+	GOTOOLCHAIN=$(TOOLCHAIN) GOBIN=$(TOOLS_BIN) $(GO) install github.com/golangci/golangci-lint/cmd/golangci-lint@$(GOLANGCI_LINT_VERSION)
+
+$(STATICCHECK):
+	@mkdir -p $(TOOLS_BIN)
+	GOTOOLCHAIN=$(TOOLCHAIN) GOBIN=$(TOOLS_BIN) $(GO) install honnef.co/go/tools/cmd/staticcheck@$(STATICCHECK_VERSION)
+
+lint: $(GOLANGCI_LINT) $(STATICCHECK)
+	GOTOOLCHAIN=$(TOOLCHAIN) $(GOLANGCI_LINT) run ./...
+	GOTOOLCHAIN=$(TOOLCHAIN) $(STATICCHECK) ./...
+
+clean:
+	@python3 -c 'import glob, os; paths=["codeagent","codeagent.exe","codeagent-wrapper","codeagent-wrapper.exe","coverage.out","cover.out","coverage.html"]; paths += glob.glob("coverage*.out") + glob.glob("cover_*.out") + glob.glob("*.test"); [os.remove(p) for p in paths if os.path.exists(p)]'
+
+install:
+	$(GO) install ./cmd/codeagent
+	$(GO) install ./cmd/codeagent-wrapper
--- a/codeagent-wrapper/README.md
+++ b/codeagent-wrapper/README.md
@@ -0,0 +1,152 @@
+# codeagent-wrapper
+
+`codeagent-wrapper` 是一个用 Go 编写的“多后端 AI 代码代理”命令行包装器：用统一的 CLI 入口封装不同的 AI 工具后端（Codex / Claude / Gemini / Opencode），并提供一致的参数、配置与会话恢复体验。
+
+入口：`cmd/codeagent/main.go`（生成二进制名：`codeagent`）和 `cmd/codeagent-wrapper/main.go`（生成二进制名：`codeagent-wrapper`）。两者行为一致。
+
+## 功能特性
+
+- 多后端支持：`codex` / `claude` / `gemini` / `opencode`
+- 统一命令行：`codeagent [flags] <task>` / `codeagent resume <session_id> <task> [workdir]`
+- 自动 stdin：遇到换行/特殊字符/超长任务自动走 stdin，避免 shell quoting 地狱；也可显式使用 `-`
+- 配置合并：支持配置文件与 `CODEAGENT_*` 环境变量（viper）
+- Agent 预设：从 `~/.codeagent/models.json` 读取 backend/model/prompt 等预设
+- 并行执行：`--parallel` 从 stdin 读取多任务配置，支持依赖拓扑并发执行
+- 日志清理：`codeagent cleanup` 清理旧日志（日志写入系统临时目录）
+
+## 安装
+
+要求：Go 1.21+。
+
+在仓库根目录执行：
+
+```bash
+go install ./cmd/codeagent
+go install ./cmd/codeagent-wrapper
+```
+
+安装后确认：
+
+```bash
+codeagent version
+codeagent-wrapper version
+```
+
+## 使用示例
+
+最简单用法（默认后端：`codex`）：
+
+```bash
+codeagent "分析 internal/app/cli.go 的入口逻辑，给出改进建议"
+```
+
+指定后端：
+
+```bash
+codeagent --backend claude "解释 internal/executor/parallel_config.go 的并行配置格式"
+```
+
+指定工作目录（第 2 个位置参数）：
+
+```bash
+codeagent "在当前 repo 下搜索潜在数据竞争" .
+```
+
+显式从 stdin 读取 task（使用 `-`）：
+
+```bash
+cat task.txt | codeagent -
+```
+
+恢复会话：
+
+```bash
+codeagent resume <session_id> "继续上次任务"
+```
+
+并行模式（从 stdin 读取任务配置；禁止位置参数）：
+
+```bash
+codeagent --parallel <<'EOF'
+---TASK---
+id: t1
+workdir: .
+backend: codex
+---CONTENT---
+列出本项目的主要模块以及它们的职责。
+---TASK---
+id: t2
+dependencies: t1
+backend: claude
+---CONTENT---
+基于 t1 的结论，提出重构风险点与建议。
+EOF
+```
+
+## 配置说明
+
+### 配置文件
+
+默认查找路径（当 `--config` 为空时）：
+
+- `$HOME/.codeagent/config.(yaml|yml|json|toml|...)`
+
+示例（YAML）：
+
+```yaml
+backend: codex
+model: gpt-4.1
+skip-permissions: false
+```
+
+也可以通过 `--config /path/to/config.yaml` 显式指定。
+
+### 环境变量（`CODEAGENT_*`）
+
+通过 viper 读取并自动映射 `-` 为 `_`，常用项：
+
+- `CODEAGENT_BACKEND`（`codex|claude|gemini|opencode`）
+- `CODEAGENT_MODEL`
+- `CODEAGENT_AGENT`
+- `CODEAGENT_PROMPT_FILE`
+- `CODEAGENT_REASONING_EFFORT`
+- `CODEAGENT_SKIP_PERMISSIONS`
+- `CODEAGENT_FULL_OUTPUT`（并行模式 legacy 输出）
+- `CODEAGENT_MAX_PARALLEL_WORKERS`（0 表示不限制，上限 100）
+
+### Agent 预设（`~/.codeagent/models.json`）
+
+可在 `~/.codeagent/models.json` 定义 agent → backend/model/prompt 等映射，用 `--agent <name>` 选择：
+
+```json
+{
+  "default_backend": "opencode",
+  "default_model": "opencode/grok-code",
+  "agents": {
+    "develop": {
+      "backend": "codex",
+      "model": "gpt-4.1",
+      "prompt_file": "~/.codeagent/prompts/develop.md",
+      "description": "Code development"
+    }
+  }
+}
+```
+
+## 支持的后端
+
+该项目本身不内置模型能力，依赖你本机安装并可在 `PATH` 中找到对应 CLI：
+
+- `codex`：执行 `codex e ...`（默认会添加 `--dangerously-bypass-approvals-and-sandbox`；如需关闭请设置 `CODEX_BYPASS_SANDBOX=false`）
+- `claude`：执行 `claude -p ... --output-format stream-json`（默认会跳过权限提示；如需开启请设置 `CODEAGENT_SKIP_PERMISSIONS=false`）
+- `gemini`：执行 `gemini ... -o stream-json`（可从 `~/.gemini/.env` 加载环境变量）
+- `opencode`：执行 `opencode run --format json`
+
+## 开发
+
+```bash
+make build
+make test
+make lint
+make clean
+```
--- a/codeagent-wrapper/USER_GUIDE.md
+++ b/codeagent-wrapper/USER_GUIDE.md
@@ -14,14 +14,10 @@ Multi-backend AI code execution wrapper supporting Codex, Claude, and Gemini.
 ## Installation

 ```bash
-# Clone repository
-git clone https://github.com/cexll/myclaude.git
-cd myclaude
+# Recommended: run the installer and select "codeagent-wrapper"
+npx github:cexll/myclaude

-# Install via install.py (includes binary compilation)
-python3 install.py --module dev
-
-# Or manual installation
+# Manual build (optional; requires repo checkout)
 cd codeagent-wrapper
 go build -o ~/.claude/bin/codeagent-wrapper
 ```
@@ -322,6 +318,8 @@ Error: dependency backend_1701234567 failed
 | Variable | Default | Description |
 |----------|---------|-------------|
 | `CODEX_TIMEOUT` | 7200000 | Timeout in milliseconds |
+| `CODEX_BYPASS_SANDBOX` | true | Bypass Codex sandbox/approval. Set `false` to disable |
+| `CODEAGENT_SKIP_PERMISSIONS` | true | Skip Claude permission prompts. Set `false` to disable |

 ## Troubleshooting

--- a/codeagent-wrapper/backend.go
+++ b/codeagent-wrapper/backend.go
@@ -1,135 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"os"
-	"path/filepath"
-)
-
-// Backend defines the contract for invoking different AI CLI backends.
-// Each backend is responsible for supplying the executable command and
-// building the argument list based on the wrapper config.
-type Backend interface {
-	Name() string
-	BuildArgs(cfg *Config, targetArg string) []string
-	Command() string
-}
-
-type CodexBackend struct{}
-
-func (CodexBackend) Name() string { return "codex" }
-func (CodexBackend) Command() string {
-	return "codex"
-}
-func (CodexBackend) BuildArgs(cfg *Config, targetArg string) []string {
-	return buildCodexArgs(cfg, targetArg)
-}
-
-type ClaudeBackend struct{}
-
-func (ClaudeBackend) Name() string { return "claude" }
-func (ClaudeBackend) Command() string {
-	return "claude"
-}
-func (ClaudeBackend) BuildArgs(cfg *Config, targetArg string) []string {
-	return buildClaudeArgs(cfg, targetArg)
-}
-
-const maxClaudeSettingsBytes = 1 << 20 // 1MB
-
-// loadMinimalEnvSettings 从 ~/.claude/settings.json 只提取 env 配置。
-// 只接受字符串类型的值；文件缺失/解析失败/超限都返回空。
-func loadMinimalEnvSettings() map[string]string {
-	home, err := os.UserHomeDir()
-	if err != nil || home == "" {
-		return nil
-	}
-
-	settingPath := filepath.Join(home, ".claude", "settings.json")
-	info, err := os.Stat(settingPath)
-	if err != nil || info.Size() > maxClaudeSettingsBytes {
-		return nil
-	}
-
-	data, err := os.ReadFile(settingPath)
-	if err != nil {
-		return nil
-	}
-
-	var cfg struct {
-		Env map[string]any `json:"env"`
-	}
-	if err := json.Unmarshal(data, &cfg); err != nil {
-		return nil
-	}
-	if len(cfg.Env) == 0 {
-		return nil
-	}
-
-	env := make(map[string]string, len(cfg.Env))
-	for k, v := range cfg.Env {
-		s, ok := v.(string)
-		if !ok {
-			continue
-		}
-		env[k] = s
-	}
-	if len(env) == 0 {
-		return nil
-	}
-	return env
-}
-
-func buildClaudeArgs(cfg *Config, targetArg string) []string {
-	if cfg == nil {
-		return nil
-	}
-	args := []string{"-p"}
-	if cfg.SkipPermissions {
-		args = append(args, "--dangerously-skip-permissions")
-	}
-
-	// Prevent infinite recursion: disable all setting sources (user, project, local)
-	// This ensures a clean execution environment without CLAUDE.md or skills that would trigger codeagent
-	args = append(args, "--setting-sources", "")
-
-	if cfg.Mode == "resume" {
-		if cfg.SessionID != "" {
-			// Claude CLI uses -r <session_id> for resume.
-			args = append(args, "-r", cfg.SessionID)
-		}
-	}
-	// Note: claude CLI doesn't support -C flag; workdir set via cmd.Dir
-
-	args = append(args, "--output-format", "stream-json", "--verbose", targetArg)
-
-	return args
-}
-
-type GeminiBackend struct{}
-
-func (GeminiBackend) Name() string { return "gemini" }
-func (GeminiBackend) Command() string {
-	return "gemini"
-}
-func (GeminiBackend) BuildArgs(cfg *Config, targetArg string) []string {
-	return buildGeminiArgs(cfg, targetArg)
-}
-
-func buildGeminiArgs(cfg *Config, targetArg string) []string {
-	if cfg == nil {
-		return nil
-	}
-	args := []string{"-o", "stream-json", "-y"}
-
-	if cfg.Mode == "resume" {
-		if cfg.SessionID != "" {
-			args = append(args, "-r", cfg.SessionID)
-		}
-	}
-	// Note: gemini CLI doesn't support -C flag; workdir set via cmd.Dir
-
-	args = append(args, "-p", targetArg)
-
-	return args
-}
--- a/codeagent-wrapper/bench_test.go
+++ b/codeagent-wrapper/bench_test.go
@@ -1,39 +0,0 @@
-package main
-
-import (
-	"testing"
-)
-
-// BenchmarkLoggerWrite 测试日志写入性能
-func BenchmarkLoggerWrite(b *testing.B) {
-	logger, err := NewLogger()
-	if err != nil {
-		b.Fatal(err)
-	}
-	defer logger.Close()
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		logger.Info("benchmark log message")
-	}
-	b.StopTimer()
-	logger.Flush()
-}
-
-// BenchmarkLoggerConcurrentWrite 测试并发日志写入性能
-func BenchmarkLoggerConcurrentWrite(b *testing.B) {
-	logger, err := NewLogger()
-	if err != nil {
-		b.Fatal(err)
-	}
-	defer logger.Close()
-
-	b.ResetTimer()
-	b.RunParallel(func(pb *testing.PB) {
-		for pb.Next() {
-			logger.Info("concurrent benchmark log message")
-		}
-	})
-	b.StopTimer()
-	logger.Flush()
-}
--- a/codeagent-wrapper/cmd/codeagent-wrapper/main.go
+++ b/codeagent-wrapper/cmd/codeagent-wrapper/main.go
@@ -0,0 +1,7 @@
+package main
+
+import app "codeagent-wrapper/internal/app"
+
+func main() {
+	app.Run()
+}
--- a/codeagent-wrapper/config.go
+++ b/codeagent-wrapper/config.go
@@ -1,287 +0,0 @@
-package main
-
-import (
-	"bytes"
-	"context"
-	"fmt"
-	"os"
-	"strconv"
-	"strings"
-)
-
-// Config holds CLI configuration
-type Config struct {
-	Mode               string // "new" or "resume"
-	Task               string
-	SessionID          string
-	WorkDir            string
-	ExplicitStdin      bool
-	Timeout            int
-	Backend            string
-	SkipPermissions    bool
-	MaxParallelWorkers int
-}
-
-// ParallelConfig defines the JSON schema for parallel execution
-type ParallelConfig struct {
-	Tasks         []TaskSpec `json:"tasks"`
-	GlobalBackend string     `json:"backend,omitempty"`
-}
-
-// TaskSpec describes an individual task entry in the parallel config
-type TaskSpec struct {
-	ID           string          `json:"id"`
-	Task         string          `json:"task"`
-	WorkDir      string          `json:"workdir,omitempty"`
-	Dependencies []string        `json:"dependencies,omitempty"`
-	SessionID    string          `json:"session_id,omitempty"`
-	Backend      string          `json:"backend,omitempty"`
-	Mode         string          `json:"-"`
-	UseStdin     bool            `json:"-"`
-	Context      context.Context `json:"-"`
-}
-
-// TaskResult captures the execution outcome of a task
-type TaskResult struct {
-	TaskID    string `json:"task_id"`
-	ExitCode  int    `json:"exit_code"`
-	Message   string `json:"message"`
-	SessionID string `json:"session_id"`
-	Error     string `json:"error"`
-	LogPath   string `json:"log_path"`
-	// Structured report fields
-	Coverage       string   `json:"coverage,omitempty"`        // extracted coverage percentage (e.g., "92%")
-	CoverageNum    float64  `json:"coverage_num,omitempty"`    // numeric coverage for comparison
-	CoverageTarget float64  `json:"coverage_target,omitempty"` // target coverage (default 90)
-	FilesChanged   []string `json:"files_changed,omitempty"`   // list of changed files
-	KeyOutput      string   `json:"key_output,omitempty"`      // brief summary of what was done
-	TestsPassed    int      `json:"tests_passed,omitempty"`    // number of tests passed
-	TestsFailed    int      `json:"tests_failed,omitempty"`    // number of tests failed
-	sharedLog      bool
-}
-
-var backendRegistry = map[string]Backend{
-	"codex":  CodexBackend{},
-	"claude": ClaudeBackend{},
-	"gemini": GeminiBackend{},
-}
-
-func selectBackend(name string) (Backend, error) {
-	key := strings.ToLower(strings.TrimSpace(name))
-	if key == "" {
-		key = defaultBackendName
-	}
-	if backend, ok := backendRegistry[key]; ok {
-		return backend, nil
-	}
-	return nil, fmt.Errorf("unsupported backend %q", name)
-}
-
-func envFlagEnabled(key string) bool {
-	val, ok := os.LookupEnv(key)
-	if !ok {
-		return false
-	}
-	val = strings.TrimSpace(strings.ToLower(val))
-	switch val {
-	case "", "0", "false", "no", "off":
-		return false
-	default:
-		return true
-	}
-}
-
-func parseBoolFlag(val string, defaultValue bool) bool {
-	val = strings.TrimSpace(strings.ToLower(val))
-	switch val {
-	case "1", "true", "yes", "on":
-		return true
-	case "0", "false", "no", "off":
-		return false
-	default:
-		return defaultValue
-	}
-}
-
-func parseParallelConfig(data []byte) (*ParallelConfig, error) {
-	trimmed := bytes.TrimSpace(data)
-	if len(trimmed) == 0 {
-		return nil, fmt.Errorf("parallel config is empty")
-	}
-
-	tasks := strings.Split(string(trimmed), "---TASK---")
-	var cfg ParallelConfig
-	seen := make(map[string]struct{})
-
-	taskIndex := 0
-	for _, taskBlock := range tasks {
-		taskBlock = strings.TrimSpace(taskBlock)
-		if taskBlock == "" {
-			continue
-		}
-		taskIndex++
-
-		parts := strings.SplitN(taskBlock, "---CONTENT---", 2)
-		if len(parts) != 2 {
-			return nil, fmt.Errorf("task block #%d missing ---CONTENT--- separator", taskIndex)
-		}
-
-		meta := strings.TrimSpace(parts[0])
-		content := strings.TrimSpace(parts[1])
-
-		task := TaskSpec{WorkDir: defaultWorkdir}
-		for _, line := range strings.Split(meta, "\n") {
-			line = strings.TrimSpace(line)
-			if line == "" {
-				continue
-			}
-			kv := strings.SplitN(line, ":", 2)
-			if len(kv) != 2 {
-				continue
-			}
-			key := strings.TrimSpace(kv[0])
-			value := strings.TrimSpace(kv[1])
-
-			switch key {
-			case "id":
-				task.ID = value
-			case "workdir":
-				task.WorkDir = value
-			case "session_id":
-				task.SessionID = value
-				task.Mode = "resume"
-			case "backend":
-				task.Backend = value
-			case "dependencies":
-				for _, dep := range strings.Split(value, ",") {
-					dep = strings.TrimSpace(dep)
-					if dep != "" {
-						task.Dependencies = append(task.Dependencies, dep)
-					}
-				}
-			}
-		}
-
-		if task.Mode == "" {
-			task.Mode = "new"
-		}
-
-		if task.ID == "" {
-			return nil, fmt.Errorf("task block #%d missing id field", taskIndex)
-		}
-		if content == "" {
-			return nil, fmt.Errorf("task block #%d (%q) missing content", taskIndex, task.ID)
-		}
-		if task.Mode == "resume" && strings.TrimSpace(task.SessionID) == "" {
-			return nil, fmt.Errorf("task block #%d (%q) has empty session_id", taskIndex, task.ID)
-		}
-		if _, exists := seen[task.ID]; exists {
-			return nil, fmt.Errorf("task block #%d has duplicate id: %s", taskIndex, task.ID)
-		}
-
-		task.Task = content
-		cfg.Tasks = append(cfg.Tasks, task)
-		seen[task.ID] = struct{}{}
-	}
-
-	if len(cfg.Tasks) == 0 {
-		return nil, fmt.Errorf("no tasks found")
-	}
-
-	return &cfg, nil
-}
-
-func parseArgs() (*Config, error) {
-	args := os.Args[1:]
-	if len(args) == 0 {
-		return nil, fmt.Errorf("task required")
-	}
-
-	backendName := defaultBackendName
-	skipPermissions := envFlagEnabled("CODEAGENT_SKIP_PERMISSIONS")
-	filtered := make([]string, 0, len(args))
-	for i := 0; i < len(args); i++ {
-		arg := args[i]
-		switch {
-		case arg == "--backend":
-			if i+1 >= len(args) {
-				return nil, fmt.Errorf("--backend flag requires a value")
-			}
-			backendName = args[i+1]
-			i++
-			continue
-		case strings.HasPrefix(arg, "--backend="):
-			value := strings.TrimPrefix(arg, "--backend=")
-			if value == "" {
-				return nil, fmt.Errorf("--backend flag requires a value")
-			}
-			backendName = value
-			continue
-		case arg == "--skip-permissions", arg == "--dangerously-skip-permissions":
-			skipPermissions = true
-			continue
-		case strings.HasPrefix(arg, "--skip-permissions="):
-			skipPermissions = parseBoolFlag(strings.TrimPrefix(arg, "--skip-permissions="), skipPermissions)
-			continue
-		case strings.HasPrefix(arg, "--dangerously-skip-permissions="):
-			skipPermissions = parseBoolFlag(strings.TrimPrefix(arg, "--dangerously-skip-permissions="), skipPermissions)
-			continue
-		}
-		filtered = append(filtered, arg)
-	}
-
-	if len(filtered) == 0 {
-		return nil, fmt.Errorf("task required")
-	}
-	args = filtered
-
-	cfg := &Config{WorkDir: defaultWorkdir, Backend: backendName, SkipPermissions: skipPermissions}
-	cfg.MaxParallelWorkers = resolveMaxParallelWorkers()
-
-	if args[0] == "resume" {
-		if len(args) < 3 {
-			return nil, fmt.Errorf("resume mode requires: resume <session_id> <task>")
-		}
-		cfg.Mode = "resume"
-		cfg.SessionID = strings.TrimSpace(args[1])
-		if cfg.SessionID == "" {
-			return nil, fmt.Errorf("resume mode requires non-empty session_id")
-		}
-		cfg.Task = args[2]
-		cfg.ExplicitStdin = (args[2] == "-")
-		if len(args) > 3 {
-			cfg.WorkDir = args[3]
-		}
-	} else {
-		cfg.Mode = "new"
-		cfg.Task = args[0]
-		cfg.ExplicitStdin = (args[0] == "-")
-		if len(args) > 1 {
-			cfg.WorkDir = args[1]
-		}
-	}
-
-	return cfg, nil
-}
-
-const maxParallelWorkersLimit = 100
-
-func resolveMaxParallelWorkers() int {
-	raw := strings.TrimSpace(os.Getenv("CODEAGENT_MAX_PARALLEL_WORKERS"))
-	if raw == "" {
-		return 0
-	}
-
-	value, err := strconv.Atoi(raw)
-	if err != nil || value < 0 {
-		logWarn(fmt.Sprintf("Invalid CODEAGENT_MAX_PARALLEL_WORKERS=%q, falling back to unlimited", raw))
-		return 0
-	}
-
-	if value > maxParallelWorkersLimit {
-		logWarn(fmt.Sprintf("CODEAGENT_MAX_PARALLEL_WORKERS=%d exceeds limit, capping at %d", value, maxParallelWorkersLimit))
-		return maxParallelWorkersLimit
-	}
-
-	return value
-}
--- a/codeagent-wrapper/go.mod
+++ b/codeagent-wrapper/go.mod
@@ -1,3 +1,43 @@
 module codeagent-wrapper

 go 1.21
+
+require (
+	github.com/goccy/go-json v0.10.5
+	github.com/rs/zerolog v1.34.0
+	github.com/shirou/gopsutil/v3 v3.24.5
+	github.com/spf13/cobra v1.8.1
+	github.com/spf13/pflag v1.0.5
+	github.com/spf13/viper v1.19.0
+)
+
+require (
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
+	github.com/sagikazarmark/locafero v0.4.0 // indirect
+	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
+	github.com/shoenig/go-m1cpu v0.1.6 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.11.0 // indirect
+	github.com/spf13/cast v1.6.0 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	github.com/tklauser/go-sysconf v0.3.12 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/yusufpapurcu/wmi v1.2.4 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.9.0 // indirect
+	golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
--- a/codeagent-wrapper/go.sum
+++ b/codeagent-wrapper/go.sum
@@ -0,0 +1,117 @@
+github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
+github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
+github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
+github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
+github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
+github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
+github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
+github.com/goccy/go-json v0.10.5 h1:Fq85nIqj+gXn/S5ahsiTlK3TmC85qgirsdTP/+DeaC4=
+github.com/goccy/go-json v0.10.5/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
+github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
+github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
+github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 h1:6E+4a0GO5zZEnZ81pIr0yLvtUWk2if982qA3F3QD6H4=
+github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0/go.mod h1:zJYVVT2jmtg6P3p1VtQj7WsuWi/y4VnjVBn7F8KPB3I=
+github.com/magiconair/properties v1.8.7 h1:IeQXZAiQcpL9mgcAe1Nu6cX9LLw6ExEHKjN0VQdvPDY=
+github.com/magiconair/properties v1.8.7/go.mod h1:Dhd985XPs7jluiymwWYZ0G4Z61jb3vdS329zhj2hYo0=
+github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
+github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
+github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
+github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
+github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
+github.com/pelletier/go-toml/v2 v2.2.2 h1:aYUidT7k73Pcl9nb2gScu7NSrKCSHIDE89b3+6Wq+LM=
+github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
+github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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--- a/codeagent-wrapper/internal/app/agent_validation_test.go
+++ b/codeagent-wrapper/internal/app/agent_validation_test.go
@@ -0,0 +1,150 @@
+package wrapper
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	config "codeagent-wrapper/internal/config"
+	executor "codeagent-wrapper/internal/executor"
+)
+
+func TestValidateAgentName(t *testing.T) {
+	tests := []struct {
+		name    string
+		input   string
+		wantErr bool
+	}{
+		{name: "simple", input: "develop", wantErr: false},
+		{name: "upper", input: "ABC", wantErr: false},
+		{name: "digits", input: "a1", wantErr: false},
+		{name: "dash underscore", input: "a-b_c", wantErr: false},
+		{name: "empty", input: "", wantErr: true},
+		{name: "space", input: "a b", wantErr: true},
+		{name: "slash", input: "a/b", wantErr: true},
+		{name: "dotdot", input: "../evil", wantErr: true},
+		{name: "unicode", input: "中文", wantErr: true},
+		{name: "symbol", input: "a$b", wantErr: true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := config.ValidateAgentName(tt.input)
+			if (err != nil) != tt.wantErr {
+				t.Fatalf("validateAgentName(%q) err=%v, wantErr=%v", tt.input, err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func TestParseArgs_InvalidAgentNameRejected(t *testing.T) {
+	defer resetTestHooks()
+	os.Args = []string{"codeagent-wrapper", "--agent", "../evil", "task"}
+	if _, err := parseArgs(); err == nil {
+		t.Fatalf("expected parseArgs to reject invalid agent name")
+	}
+}
+
+func TestParseParallelConfig_InvalidAgentNameRejected(t *testing.T) {
+	input := `---TASK---
+id: task-1
+agent: ../evil
+---CONTENT---
+do something`
+	if _, err := parseParallelConfig([]byte(input)); err == nil {
+		t.Fatalf("expected parseParallelConfig to reject invalid agent name")
+	}
+}
+
+func TestParseParallelConfig_ResolvesAgentPromptFile(t *testing.T) {
+	home := t.TempDir()
+	t.Setenv("HOME", home)
+	t.Setenv("USERPROFILE", home)
+	t.Cleanup(config.ResetModelsConfigCacheForTest)
+	config.ResetModelsConfigCacheForTest()
+
+	configDir := filepath.Join(home, ".codeagent")
+	if err := os.MkdirAll(configDir, 0o755); err != nil {
+		t.Fatalf("MkdirAll: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(configDir, "models.json"), []byte(`{
+  "default_backend": "codex",
+  "default_model": "gpt-test",
+  "agents": {
+    "custom-agent": {
+      "backend": "codex",
+      "model": "gpt-test",
+      "prompt_file": "~/.claude/prompt.md"
+    }
+  }
+}`), 0o644); err != nil {
+		t.Fatalf("WriteFile: %v", err)
+	}
+
+	input := `---TASK---
+id: task-1
+agent: custom-agent
+---CONTENT---
+do something`
+	cfg, err := parseParallelConfig([]byte(input))
+	if err != nil {
+		t.Fatalf("parseParallelConfig() unexpected error: %v", err)
+	}
+	if len(cfg.Tasks) != 1 {
+		t.Fatalf("expected 1 task, got %d", len(cfg.Tasks))
+	}
+	if got := cfg.Tasks[0].PromptFile; got != "~/.claude/prompt.md" {
+		t.Fatalf("PromptFile = %q, want %q", got, "~/.claude/prompt.md")
+	}
+}
+
+func TestDefaultRunCodexTaskFn_AppliesAgentPromptFile(t *testing.T) {
+	defer resetTestHooks()
+
+	home := t.TempDir()
+	t.Setenv("HOME", home)
+	t.Setenv("USERPROFILE", home)
+
+	claudeDir := filepath.Join(home, ".claude")
+	if err := os.MkdirAll(claudeDir, 0o755); err != nil {
+		t.Fatalf("MkdirAll: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(claudeDir, "prompt.md"), []byte("P\n"), 0o644); err != nil {
+		t.Fatalf("WriteFile: %v", err)
+	}
+
+	fake := newFakeCmd(fakeCmdConfig{
+		StdoutPlan: []fakeStdoutEvent{
+			{Data: `{"type":"item.completed","item":{"type":"agent_message","text":"ok"}}` + "\n"},
+		},
+		WaitDelay: 2 * time.Millisecond,
+	})
+
+	_ = executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner { return fake })
+	_ = executor.SetSelectBackendFn(func(name string) (Backend, error) {
+		return testBackend{
+			name:    name,
+			command: "fake-cmd",
+			argsFn: func(cfg *Config, targetArg string) []string {
+				return []string{targetArg}
+			},
+		}, nil
+	})
+
+	res := defaultRunCodexTaskFn(TaskSpec{
+		ID:         "t",
+		Task:       "do",
+		Backend:    "codex",
+		PromptFile: "~/.claude/prompt.md",
+	}, 5)
+	if res.ExitCode != 0 {
+		t.Fatalf("unexpected result: %+v", res)
+	}
+
+	want := "<agent-prompt>\nP\n</agent-prompt>\n\ndo"
+	if got := fake.StdinContents(); got != want {
+		t.Fatalf("stdin mismatch:\n got=%q\nwant=%q", got, want)
+	}
+}
--- a/codeagent-wrapper/internal/app/app.go
+++ b/codeagent-wrapper/internal/app/app.go
@@ -0,0 +1,278 @@
+package wrapper
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+const (
+	version               = "6.1.2"
+	defaultWorkdir        = "."
+	defaultTimeout        = 7200 // seconds (2 hours)
+	defaultCoverageTarget = 90.0
+	codexLogLineLimit     = 1000
+	stdinSpecialChars     = "\n\\\"'`$"
+	stderrCaptureLimit    = 4 * 1024
+	defaultBackendName    = "codex"
+	defaultCodexCommand   = "codex"
+
+	// stdout close reasons
+	stdoutCloseReasonWait  = "wait-done"
+	stdoutCloseReasonDrain = "drain-timeout"
+	stdoutCloseReasonCtx   = "context-cancel"
+	stdoutDrainTimeout     = 500 * time.Millisecond
+)
+
+// Test hooks for dependency injection
+var (
+	stdinReader         io.Reader = os.Stdin
+	isTerminalFn                  = defaultIsTerminal
+	codexCommand                  = defaultCodexCommand
+	cleanupHook         func()
+	startupCleanupAsync = true
+
+	buildCodexArgsFn   = buildCodexArgs
+	selectBackendFn    = selectBackend
+	cleanupLogsFn      = cleanupOldLogs
+	defaultBuildArgsFn = buildCodexArgs
+	runTaskFn          = runCodexTask
+	exitFn             = os.Exit
+)
+
+func runStartupCleanup() {
+	if cleanupLogsFn == nil {
+		return
+	}
+	defer func() {
+		if r := recover(); r != nil {
+			logWarn(fmt.Sprintf("cleanupOldLogs panic: %v", r))
+		}
+	}()
+	if _, err := cleanupLogsFn(); err != nil {
+		logWarn(fmt.Sprintf("cleanupOldLogs error: %v", err))
+	}
+}
+
+func scheduleStartupCleanup() {
+	if !startupCleanupAsync {
+		runStartupCleanup()
+		return
+	}
+	if cleanupLogsFn == nil {
+		return
+	}
+	fn := cleanupLogsFn
+	go func() {
+		defer func() {
+			if r := recover(); r != nil {
+				logWarn(fmt.Sprintf("cleanupOldLogs panic: %v", r))
+			}
+		}()
+		if _, err := fn(); err != nil {
+			logWarn(fmt.Sprintf("cleanupOldLogs error: %v", err))
+		}
+	}()
+}
+
+func runCleanupMode() int {
+	if cleanupLogsFn == nil {
+		fmt.Fprintln(os.Stderr, "Cleanup failed: log cleanup function not configured")
+		return 1
+	}
+
+	stats, err := cleanupLogsFn()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Cleanup failed: %v\n", err)
+		return 1
+	}
+
+	fmt.Println("Cleanup completed")
+	fmt.Printf("Files scanned: %d\n", stats.Scanned)
+	fmt.Printf("Files deleted: %d\n", stats.Deleted)
+	if len(stats.DeletedFiles) > 0 {
+		for _, f := range stats.DeletedFiles {
+			fmt.Printf("  - %s\n", f)
+		}
+	}
+	fmt.Printf("Files kept: %d\n", stats.Kept)
+	if len(stats.KeptFiles) > 0 {
+		for _, f := range stats.KeptFiles {
+			fmt.Printf("  - %s\n", f)
+		}
+	}
+	if stats.Errors > 0 {
+		fmt.Printf("Deletion errors: %d\n", stats.Errors)
+	}
+	return 0
+}
+
+func readAgentPromptFile(path string, allowOutsideClaudeDir bool) (string, error) {
+	raw := strings.TrimSpace(path)
+	if raw == "" {
+		return "", nil
+	}
+
+	expanded := raw
+	if raw == "~" || strings.HasPrefix(raw, "~/") || strings.HasPrefix(raw, "~\\") {
+		home, err := os.UserHomeDir()
+		if err != nil {
+			return "", err
+		}
+		if raw == "~" {
+			expanded = home
+		} else {
+			expanded = home + raw[1:]
+		}
+	}
+
+	absPath, err := filepath.Abs(expanded)
+	if err != nil {
+		return "", err
+	}
+	absPath = filepath.Clean(absPath)
+
+	home, err := os.UserHomeDir()
+	if err != nil {
+		if !allowOutsideClaudeDir {
+			return "", err
+		}
+		logWarn(fmt.Sprintf("Failed to resolve home directory for prompt file validation: %v; proceeding without restriction", err))
+	} else {
+		allowedDirs := []string{
+			filepath.Clean(filepath.Join(home, ".claude")),
+			filepath.Clean(filepath.Join(home, ".codeagent", "agents")),
+		}
+		for i := range allowedDirs {
+			allowedAbs, err := filepath.Abs(allowedDirs[i])
+			if err == nil {
+				allowedDirs[i] = filepath.Clean(allowedAbs)
+			}
+		}
+
+		isWithinDir := func(path, dir string) bool {
+			rel, err := filepath.Rel(dir, path)
+			if err != nil {
+				return false
+			}
+			rel = filepath.Clean(rel)
+			if rel == "." {
+				return true
+			}
+			if rel == ".." {
+				return false
+			}
+			prefix := ".." + string(os.PathSeparator)
+			return !strings.HasPrefix(rel, prefix)
+		}
+
+		if !allowOutsideClaudeDir {
+			withinAllowed := false
+			for _, dir := range allowedDirs {
+				if isWithinDir(absPath, dir) {
+					withinAllowed = true
+					break
+				}
+			}
+			if !withinAllowed {
+				logWarn(fmt.Sprintf("Refusing to read prompt file outside allowed dirs (%s): %s", strings.Join(allowedDirs, ", "), absPath))
+				return "", fmt.Errorf("prompt file must be under ~/.claude or ~/.codeagent/agents")
+			}
+
+			resolvedPath, errPath := filepath.EvalSymlinks(absPath)
+			if errPath == nil {
+				resolvedPath = filepath.Clean(resolvedPath)
+				resolvedAllowed := make([]string, 0, len(allowedDirs))
+				for _, dir := range allowedDirs {
+					resolvedBase, errBase := filepath.EvalSymlinks(dir)
+					if errBase != nil {
+						continue
+					}
+					resolvedAllowed = append(resolvedAllowed, filepath.Clean(resolvedBase))
+				}
+				if len(resolvedAllowed) > 0 {
+					withinResolved := false
+					for _, dir := range resolvedAllowed {
+						if isWithinDir(resolvedPath, dir) {
+							withinResolved = true
+							break
+						}
+					}
+					if !withinResolved {
+						logWarn(fmt.Sprintf("Refusing to read prompt file outside allowed dirs (%s) (resolved): %s", strings.Join(resolvedAllowed, ", "), resolvedPath))
+						return "", fmt.Errorf("prompt file must be under ~/.claude or ~/.codeagent/agents")
+					}
+				}
+			}
+		} else {
+			withinAllowed := false
+			for _, dir := range allowedDirs {
+				if isWithinDir(absPath, dir) {
+					withinAllowed = true
+					break
+				}
+			}
+			if !withinAllowed {
+				logWarn(fmt.Sprintf("Reading prompt file outside allowed dirs (%s): %s", strings.Join(allowedDirs, ", "), absPath))
+			}
+		}
+	}
+
+	data, err := os.ReadFile(absPath)
+	if err != nil {
+		return "", err
+	}
+	return strings.TrimRight(string(data), "\r\n"), nil
+}
+
+func wrapTaskWithAgentPrompt(prompt string, task string) string {
+	return "<agent-prompt>\n" + prompt + "\n</agent-prompt>\n\n" + task
+}
+
+func runCleanupHook() {
+	if logger := activeLogger(); logger != nil {
+		logger.Flush()
+	}
+	if cleanupHook != nil {
+		cleanupHook()
+	}
+}
+
+func printHelp() {
+	name := currentWrapperName()
+	help := fmt.Sprintf(`%[1]s - Go wrapper for AI CLI backends
+
+Usage:
+    %[1]s "task" [workdir]
+    %[1]s --backend claude "task" [workdir]
+    %[1]s --prompt-file /path/to/prompt.md "task" [workdir]
+    %[1]s - [workdir]              Read task from stdin
+    %[1]s resume <session_id> "task" [workdir]
+    %[1]s resume <session_id> - [workdir]
+    %[1]s --parallel               Run tasks in parallel (config from stdin)
+    %[1]s --parallel --full-output Run tasks in parallel with full output (legacy)
+    %[1]s --version
+    %[1]s --help
+
+Parallel mode examples:
+    %[1]s --parallel < tasks.txt
+    echo '...' | %[1]s --parallel
+    %[1]s --parallel --full-output < tasks.txt
+    %[1]s --parallel <<'EOF'
+
+Environment Variables:
+    CODEX_TIMEOUT         Timeout in milliseconds (default: 7200000)
+    CODEAGENT_ASCII_MODE  Use ASCII symbols instead of Unicode (PASS/WARN/FAIL)
+
+Exit Codes:
+    0    Success
+    1    General error (missing args, no output)
+    124  Timeout
+    127  backend command not found
+    130  Interrupted (Ctrl+C)
+    *    Passthrough from backend process`, name)
+	fmt.Println(help)
+}
--- a/codeagent-wrapper/internal/app/backend.go
+++ b/codeagent-wrapper/internal/app/backend.go
@@ -0,0 +1,9 @@
+package wrapper
+
+import backend "codeagent-wrapper/internal/backend"
+
+type Backend = backend.Backend
+type CodexBackend = backend.CodexBackend
+type ClaudeBackend = backend.ClaudeBackend
+type GeminiBackend = backend.GeminiBackend
+type OpencodeBackend = backend.OpencodeBackend
--- a/codeagent-wrapper/internal/app/backend_init.go
+++ b/codeagent-wrapper/internal/app/backend_init.go
@@ -0,0 +1,7 @@
+package wrapper
+
+import backend "codeagent-wrapper/internal/backend"
+
+func init() {
+	backend.SetLogFuncs(logWarn, logError)
+}
--- a/codeagent-wrapper/internal/app/backend_registry.go
+++ b/codeagent-wrapper/internal/app/backend_registry.go
@@ -0,0 +1,5 @@
+package wrapper
+
+import backend "codeagent-wrapper/internal/backend"
+
+func selectBackend(name string) (Backend, error) { return backend.Select(name) }
--- a/codeagent-wrapper/internal/app/bench_test.go
+++ b/codeagent-wrapper/internal/app/bench_test.go
@@ -0,0 +1,103 @@
+package wrapper
+
+import (
+	"bytes"
+	"os"
+	"testing"
+
+	config "codeagent-wrapper/internal/config"
+)
+
+var (
+	benchCmdSink      any
+	benchConfigSink   *Config
+	benchMessageSink  string
+	benchThreadIDSink string
+)
+
+// BenchmarkStartup_NewRootCommand measures CLI startup overhead (command+flags construction).
+func BenchmarkStartup_NewRootCommand(b *testing.B) {
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		benchCmdSink = newRootCommand()
+	}
+}
+
+// BenchmarkConfigParse_ParseArgs measures config parsing from argv/env (steady-state).
+func BenchmarkConfigParse_ParseArgs(b *testing.B) {
+	home := b.TempDir()
+	b.Setenv("HOME", home)
+	b.Setenv("USERPROFILE", home)
+
+	config.ResetModelsConfigCacheForTest()
+	b.Cleanup(config.ResetModelsConfigCacheForTest)
+
+	origArgs := os.Args
+	os.Args = []string{"codeagent-wrapper", "--agent", "develop", "task"}
+	b.Cleanup(func() { os.Args = origArgs })
+
+	if _, err := parseArgs(); err != nil {
+		b.Fatalf("warmup parseArgs() error: %v", err)
+	}
+
+	b.ReportAllocs()
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		cfg, err := parseArgs()
+		if err != nil {
+			b.Fatalf("parseArgs() error: %v", err)
+		}
+		benchConfigSink = cfg
+	}
+}
+
+// BenchmarkJSONParse_ParseJSONStreamInternal measures line-delimited JSON stream parsing.
+func BenchmarkJSONParse_ParseJSONStreamInternal(b *testing.B) {
+	stream := []byte(
+		`{"type":"thread.started","thread_id":"t"}` + "\n" +
+			`{"type":"item.completed","item":{"type":"agent_message","text":"hello"}}` + "\n" +
+			`{"type":"thread.completed","thread_id":"t"}` + "\n",
+	)
+	b.SetBytes(int64(len(stream)))
+
+	b.ReportAllocs()
+	for i := 0; i < b.N; i++ {
+		message, threadID := parseJSONStreamInternal(bytes.NewReader(stream), nil, nil, nil, nil)
+		benchMessageSink = message
+		benchThreadIDSink = threadID
+	}
+}
+
+// BenchmarkLoggerWrite 测试日志写入性能
+func BenchmarkLoggerWrite(b *testing.B) {
+	logger, err := NewLogger()
+	if err != nil {
+		b.Fatal(err)
+	}
+	defer logger.Close()
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		logger.Info("benchmark log message")
+	}
+	b.StopTimer()
+	logger.Flush()
+}
+
+// BenchmarkLoggerConcurrentWrite 测试并发日志写入性能
+func BenchmarkLoggerConcurrentWrite(b *testing.B) {
+	logger, err := NewLogger()
+	if err != nil {
+		b.Fatal(err)
+	}
+	defer logger.Close()
+
+	b.ResetTimer()
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			logger.Info("concurrent benchmark log message")
+		}
+	})
+	b.StopTimer()
+	logger.Flush()
+}
--- a/codeagent-wrapper/internal/app/cli.go
+++ b/codeagent-wrapper/internal/app/cli.go
@@ -0,0 +1,664 @@
+package wrapper
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"reflect"
+	"strings"
+
+	config "codeagent-wrapper/internal/config"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+	"github.com/spf13/viper"
+)
+
+type exitError struct {
+	code int
+}
+
+func (e exitError) Error() string {
+	return fmt.Sprintf("exit %d", e.code)
+}
+
+type cliOptions struct {
+	Backend         string
+	Model           string
+	ReasoningEffort string
+	Agent           string
+	PromptFile      string
+	SkipPermissions bool
+
+	Parallel   bool
+	FullOutput bool
+
+	Cleanup    bool
+	Version    bool
+	ConfigFile string
+}
+
+func Main() {
+	Run()
+}
+
+// Run is the program entrypoint for cmd/codeagent/main.go.
+func Run() {
+	exitFn(run())
+}
+
+func run() int {
+	cmd := newRootCommand()
+	cmd.SetArgs(os.Args[1:])
+	if err := cmd.Execute(); err != nil {
+		var ee exitError
+		if errors.As(err, &ee) {
+			return ee.code
+		}
+		return 1
+	}
+	return 0
+}
+
+func newRootCommand() *cobra.Command {
+	name := currentWrapperName()
+	opts := &cliOptions{}
+
+	cmd := &cobra.Command{
+		Use:           fmt.Sprintf("%s [flags] <task>|resume <session_id> <task> [workdir]", name),
+		Short:         "Go wrapper for AI CLI backends",
+		SilenceErrors: true,
+		SilenceUsage:  true,
+		Args:          cobra.ArbitraryArgs,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if opts.Version {
+				fmt.Printf("%s version %s\n", name, version)
+				return nil
+			}
+			if opts.Cleanup {
+				code := runCleanupMode()
+				if code == 0 {
+					return nil
+				}
+				return exitError{code: code}
+			}
+
+			exitCode := runWithLoggerAndCleanup(func() int {
+				v, err := config.NewViper(opts.ConfigFile)
+				if err != nil {
+					logError(err.Error())
+					return 1
+				}
+
+				if opts.Parallel {
+					return runParallelMode(cmd, args, opts, v, name)
+				}
+
+				logInfo("Script started")
+
+				cfg, err := buildSingleConfig(cmd, args, os.Args[1:], opts, v)
+				if err != nil {
+					logError(err.Error())
+					return 1
+				}
+				logInfo(fmt.Sprintf("Parsed args: mode=%s, task_len=%d, backend=%s", cfg.Mode, len(cfg.Task), cfg.Backend))
+				return runSingleMode(cfg, name)
+			})
+
+			if exitCode == 0 {
+				return nil
+			}
+			return exitError{code: exitCode}
+		},
+	}
+	cmd.CompletionOptions.DisableDefaultCmd = true
+
+	addRootFlags(cmd.Flags(), opts)
+	cmd.AddCommand(newVersionCommand(name), newCleanupCommand())
+
+	return cmd
+}
+
+func addRootFlags(fs *pflag.FlagSet, opts *cliOptions) {
+	fs.StringVar(&opts.ConfigFile, "config", "", "Config file path (default: $HOME/.codeagent/config.*)")
+	fs.BoolVarP(&opts.Version, "version", "v", false, "Print version and exit")
+	fs.BoolVar(&opts.Cleanup, "cleanup", false, "Clean up old logs and exit")
+
+	fs.BoolVar(&opts.Parallel, "parallel", false, "Run tasks in parallel (config from stdin)")
+	fs.BoolVar(&opts.FullOutput, "full-output", false, "Parallel mode: include full task output (legacy)")
+
+	fs.StringVar(&opts.Backend, "backend", defaultBackendName, "Backend to use (codex, claude, gemini, opencode)")
+	fs.StringVar(&opts.Model, "model", "", "Model override")
+	fs.StringVar(&opts.ReasoningEffort, "reasoning-effort", "", "Reasoning effort (backend-specific)")
+	fs.StringVar(&opts.Agent, "agent", "", "Agent preset name (from ~/.codeagent/models.json)")
+	fs.StringVar(&opts.PromptFile, "prompt-file", "", "Prompt file path")
+
+	fs.BoolVar(&opts.SkipPermissions, "skip-permissions", false, "Skip permissions prompts (also via CODEAGENT_SKIP_PERMISSIONS)")
+	fs.BoolVar(&opts.SkipPermissions, "dangerously-skip-permissions", false, "Alias for --skip-permissions")
+}
+
+func newVersionCommand(name string) *cobra.Command {
+	return &cobra.Command{
+		Use:           "version",
+		Short:         "Print version and exit",
+		SilenceErrors: true,
+		SilenceUsage:  true,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			fmt.Printf("%s version %s\n", name, version)
+			return nil
+		},
+	}
+}
+
+func newCleanupCommand() *cobra.Command {
+	return &cobra.Command{
+		Use:           "cleanup",
+		Short:         "Clean up old logs and exit",
+		SilenceErrors: true,
+		SilenceUsage:  true,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			code := runCleanupMode()
+			if code == 0 {
+				return nil
+			}
+			return exitError{code: code}
+		},
+	}
+}
+
+func runWithLoggerAndCleanup(fn func() int) (exitCode int) {
+	logger, err := NewLogger()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "ERROR: failed to initialize logger: %v\n", err)
+		return 1
+	}
+	setLogger(logger)
+
+	defer func() {
+		logger := activeLogger()
+		if logger != nil {
+			logger.Flush()
+		}
+		if err := closeLogger(); err != nil {
+			fmt.Fprintf(os.Stderr, "ERROR: failed to close logger: %v\n", err)
+		}
+		if logger == nil {
+			return
+		}
+
+		if exitCode != 0 {
+			if entries := logger.ExtractRecentErrors(10); len(entries) > 0 {
+				fmt.Fprintln(os.Stderr, "\n=== Recent Errors ===")
+				for _, entry := range entries {
+					fmt.Fprintln(os.Stderr, entry)
+				}
+				fmt.Fprintf(os.Stderr, "Log file: %s (deleted)\n", logger.Path())
+			}
+		}
+		_ = logger.RemoveLogFile()
+	}()
+	defer runCleanupHook()
+
+	// Clean up stale logs from previous runs.
+	scheduleStartupCleanup()
+
+	return fn()
+}
+
+func parseArgs() (*Config, error) {
+	opts := &cliOptions{}
+	cmd := &cobra.Command{SilenceErrors: true, SilenceUsage: true, Args: cobra.ArbitraryArgs}
+	addRootFlags(cmd.Flags(), opts)
+
+	rawArgv := os.Args[1:]
+	if err := cmd.ParseFlags(rawArgv); err != nil {
+		return nil, err
+	}
+	args := cmd.Flags().Args()
+
+	v, err := config.NewViper(opts.ConfigFile)
+	if err != nil {
+		return nil, err
+	}
+
+	return buildSingleConfig(cmd, args, rawArgv, opts, v)
+}
+
+func buildSingleConfig(cmd *cobra.Command, args []string, rawArgv []string, opts *cliOptions, v *viper.Viper) (*Config, error) {
+	backendName := defaultBackendName
+	model := ""
+	reasoningEffort := ""
+	agentName := ""
+	promptFile := ""
+	promptFileExplicit := false
+	yolo := false
+
+	if cmd.Flags().Changed("agent") {
+		agentName = strings.TrimSpace(opts.Agent)
+		if agentName == "" {
+			return nil, fmt.Errorf("--agent flag requires a value")
+		}
+		if err := config.ValidateAgentName(agentName); err != nil {
+			return nil, fmt.Errorf("--agent flag invalid value: %w", err)
+		}
+	} else {
+		agentName = strings.TrimSpace(v.GetString("agent"))
+		if agentName != "" {
+			if err := config.ValidateAgentName(agentName); err != nil {
+				return nil, fmt.Errorf("--agent flag invalid value: %w", err)
+			}
+		}
+	}
+
+	var resolvedBackend, resolvedModel, resolvedPromptFile, resolvedReasoning string
+	if agentName != "" {
+		var resolvedYolo bool
+		resolvedBackend, resolvedModel, resolvedPromptFile, resolvedReasoning, _, _, resolvedYolo = config.ResolveAgentConfig(agentName)
+		yolo = resolvedYolo
+	}
+
+	if cmd.Flags().Changed("prompt-file") {
+		promptFile = strings.TrimSpace(opts.PromptFile)
+		if promptFile == "" {
+			return nil, fmt.Errorf("--prompt-file flag requires a value")
+		}
+		promptFileExplicit = true
+	} else if val := strings.TrimSpace(v.GetString("prompt-file")); val != "" {
+		promptFile = val
+		promptFileExplicit = true
+	} else {
+		promptFile = resolvedPromptFile
+	}
+
+	agentFlagChanged := cmd.Flags().Changed("agent")
+	backendFlagChanged := cmd.Flags().Changed("backend")
+	if backendFlagChanged {
+		backendName = strings.TrimSpace(opts.Backend)
+		if backendName == "" {
+			return nil, fmt.Errorf("--backend flag requires a value")
+		}
+	}
+
+	switch {
+	case agentFlagChanged && backendFlagChanged && lastFlagIndex(rawArgv, "agent") > lastFlagIndex(rawArgv, "backend"):
+		backendName = resolvedBackend
+	case !backendFlagChanged && agentName != "":
+		backendName = resolvedBackend
+	case !backendFlagChanged:
+		if val := strings.TrimSpace(v.GetString("backend")); val != "" {
+			backendName = val
+		}
+	}
+
+	modelFlagChanged := cmd.Flags().Changed("model")
+	if modelFlagChanged {
+		model = strings.TrimSpace(opts.Model)
+		if model == "" {
+			return nil, fmt.Errorf("--model flag requires a value")
+		}
+	}
+
+	switch {
+	case agentFlagChanged && modelFlagChanged && lastFlagIndex(rawArgv, "agent") > lastFlagIndex(rawArgv, "model"):
+		model = strings.TrimSpace(resolvedModel)
+	case !modelFlagChanged && agentName != "":
+		model = strings.TrimSpace(resolvedModel)
+	case !modelFlagChanged:
+		model = strings.TrimSpace(v.GetString("model"))
+	}
+
+	if cmd.Flags().Changed("reasoning-effort") {
+		reasoningEffort = strings.TrimSpace(opts.ReasoningEffort)
+		if reasoningEffort == "" {
+			return nil, fmt.Errorf("--reasoning-effort flag requires a value")
+		}
+	} else if val := strings.TrimSpace(v.GetString("reasoning-effort")); val != "" {
+		reasoningEffort = val
+	} else if agentName != "" {
+		reasoningEffort = strings.TrimSpace(resolvedReasoning)
+	}
+
+	skipChanged := cmd.Flags().Changed("skip-permissions") || cmd.Flags().Changed("dangerously-skip-permissions")
+	skipPermissions := false
+	if skipChanged {
+		skipPermissions = opts.SkipPermissions
+	} else {
+		skipPermissions = v.GetBool("skip-permissions")
+	}
+
+	if len(args) == 0 {
+		return nil, fmt.Errorf("task required")
+	}
+
+	cfg := &Config{
+		WorkDir:            defaultWorkdir,
+		Backend:            backendName,
+		Agent:              agentName,
+		PromptFile:         promptFile,
+		PromptFileExplicit: promptFileExplicit,
+		SkipPermissions:    skipPermissions,
+		Yolo:               yolo,
+		Model:              model,
+		ReasoningEffort:    reasoningEffort,
+		MaxParallelWorkers: config.ResolveMaxParallelWorkers(),
+	}
+
+	if args[0] == "resume" {
+		if len(args) < 3 {
+			return nil, fmt.Errorf("resume mode requires: resume <session_id> <task>")
+		}
+		cfg.Mode = "resume"
+		cfg.SessionID = strings.TrimSpace(args[1])
+		if cfg.SessionID == "" {
+			return nil, fmt.Errorf("resume mode requires non-empty session_id")
+		}
+		cfg.Task = args[2]
+		cfg.ExplicitStdin = (args[2] == "-")
+		if len(args) > 3 {
+			if args[3] == "-" {
+				return nil, fmt.Errorf("invalid workdir: '-' is not a valid directory path")
+			}
+			cfg.WorkDir = args[3]
+		}
+	} else {
+		cfg.Mode = "new"
+		cfg.Task = args[0]
+		cfg.ExplicitStdin = (args[0] == "-")
+		if len(args) > 1 {
+			if args[1] == "-" {
+				return nil, fmt.Errorf("invalid workdir: '-' is not a valid directory path")
+			}
+			cfg.WorkDir = args[1]
+		}
+	}
+
+	return cfg, nil
+}
+
+func lastFlagIndex(argv []string, name string) int {
+	if len(argv) == 0 {
+		return -1
+	}
+	name = strings.TrimSpace(name)
+	if name == "" {
+		return -1
+	}
+
+	needle := "--" + name
+	prefix := needle + "="
+	last := -1
+	for i, arg := range argv {
+		if arg == needle || strings.HasPrefix(arg, prefix) {
+			last = i
+		}
+	}
+	return last
+}
+
+func runParallelMode(cmd *cobra.Command, args []string, opts *cliOptions, v *viper.Viper, name string) int {
+	if len(args) > 0 {
+		fmt.Fprintln(os.Stderr, "ERROR: --parallel reads its task configuration from stdin; no positional arguments are allowed.")
+		fmt.Fprintln(os.Stderr, "Usage examples:")
+		fmt.Fprintf(os.Stderr, "  %s --parallel < tasks.txt\n", name)
+		fmt.Fprintf(os.Stderr, "  echo '...' | %s --parallel\n", name)
+		fmt.Fprintf(os.Stderr, "  %s --parallel <<'EOF'\n", name)
+		fmt.Fprintf(os.Stderr, "  %s --parallel --full-output <<'EOF'  # include full task output\n", name)
+		return 1
+	}
+
+	if cmd.Flags().Changed("agent") || cmd.Flags().Changed("prompt-file") || cmd.Flags().Changed("reasoning-effort") {
+		fmt.Fprintln(os.Stderr, "ERROR: --parallel reads its task configuration from stdin; only --backend, --model, --full-output and --skip-permissions are allowed.")
+		return 1
+	}
+
+	backendName := defaultBackendName
+	if cmd.Flags().Changed("backend") {
+		backendName = strings.TrimSpace(opts.Backend)
+		if backendName == "" {
+			fmt.Fprintln(os.Stderr, "ERROR: --backend flag requires a value")
+			return 1
+		}
+	} else if val := strings.TrimSpace(v.GetString("backend")); val != "" {
+		backendName = val
+	}
+
+	model := ""
+	if cmd.Flags().Changed("model") {
+		model = strings.TrimSpace(opts.Model)
+		if model == "" {
+			fmt.Fprintln(os.Stderr, "ERROR: --model flag requires a value")
+			return 1
+		}
+	} else {
+		model = strings.TrimSpace(v.GetString("model"))
+	}
+
+	fullOutput := opts.FullOutput
+	if !cmd.Flags().Changed("full-output") && v.IsSet("full-output") {
+		fullOutput = v.GetBool("full-output")
+	}
+
+	skipChanged := cmd.Flags().Changed("skip-permissions") || cmd.Flags().Changed("dangerously-skip-permissions")
+	skipPermissions := false
+	if skipChanged {
+		skipPermissions = opts.SkipPermissions
+	} else {
+		skipPermissions = v.GetBool("skip-permissions")
+	}
+
+	backend, err := selectBackendFn(backendName)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
+		return 1
+	}
+	backendName = backend.Name()
+
+	data, err := io.ReadAll(stdinReader)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "ERROR: failed to read stdin: %v\n", err)
+		return 1
+	}
+
+	cfg, err := parseParallelConfig(data)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
+		return 1
+	}
+
+	cfg.GlobalBackend = backendName
+	model = strings.TrimSpace(model)
+	for i := range cfg.Tasks {
+		if strings.TrimSpace(cfg.Tasks[i].Backend) == "" {
+			cfg.Tasks[i].Backend = backendName
+		}
+		if strings.TrimSpace(cfg.Tasks[i].Model) == "" && model != "" {
+			cfg.Tasks[i].Model = model
+		}
+		cfg.Tasks[i].SkipPermissions = cfg.Tasks[i].SkipPermissions || skipPermissions
+	}
+
+	timeoutSec := resolveTimeout()
+	layers, err := topologicalSort(cfg.Tasks)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "ERROR: %v\n", err)
+		return 1
+	}
+
+	results := executeConcurrent(layers, timeoutSec)
+
+	for i := range results {
+		results[i].CoverageTarget = defaultCoverageTarget
+		if results[i].Message == "" {
+			continue
+		}
+
+		lines := strings.Split(results[i].Message, "\n")
+		results[i].Coverage = extractCoverageFromLines(lines)
+		results[i].CoverageNum = extractCoverageNum(results[i].Coverage)
+		results[i].FilesChanged = extractFilesChangedFromLines(lines)
+		results[i].TestsPassed, results[i].TestsFailed = extractTestResultsFromLines(lines)
+		results[i].KeyOutput = extractKeyOutputFromLines(lines, 150)
+	}
+
+	fmt.Println(generateFinalOutputWithMode(results, !fullOutput))
+
+	exitCode := 0
+	for _, res := range results {
+		if res.ExitCode != 0 {
+			exitCode = res.ExitCode
+		}
+	}
+	return exitCode
+}
+
+func runSingleMode(cfg *Config, name string) int {
+	backend, err := selectBackendFn(cfg.Backend)
+	if err != nil {
+		logError(err.Error())
+		return 1
+	}
+	cfg.Backend = backend.Name()
+
+	cmdInjected := codexCommand != defaultCodexCommand
+	argsInjected := buildCodexArgsFn != nil && reflect.ValueOf(buildCodexArgsFn).Pointer() != reflect.ValueOf(defaultBuildArgsFn).Pointer()
+
+	if backend.Name() != defaultBackendName || !cmdInjected {
+		codexCommand = backend.Command()
+	}
+	if backend.Name() != defaultBackendName || !argsInjected {
+		buildCodexArgsFn = backend.BuildArgs
+	}
+	logInfo(fmt.Sprintf("Selected backend: %s", backend.Name()))
+
+	timeoutSec := resolveTimeout()
+	logInfo(fmt.Sprintf("Timeout: %ds", timeoutSec))
+	cfg.Timeout = timeoutSec
+
+	var taskText string
+	var piped bool
+
+	if cfg.ExplicitStdin {
+		logInfo("Explicit stdin mode: reading task from stdin")
+		data, err := io.ReadAll(stdinReader)
+		if err != nil {
+			logError("Failed to read stdin: " + err.Error())
+			return 1
+		}
+		taskText = string(data)
+		if taskText == "" {
+			logError("Explicit stdin mode requires task input from stdin")
+			return 1
+		}
+		piped = !isTerminal()
+	} else {
+		pipedTask, err := readPipedTask()
+		if err != nil {
+			logError("Failed to read piped stdin: " + err.Error())
+			return 1
+		}
+		piped = pipedTask != ""
+		if piped {
+			taskText = pipedTask
+		} else {
+			taskText = cfg.Task
+		}
+	}
+
+	if strings.TrimSpace(cfg.PromptFile) != "" {
+		prompt, err := readAgentPromptFile(cfg.PromptFile, cfg.PromptFileExplicit)
+		if err != nil {
+			logError("Failed to read prompt file: " + err.Error())
+			return 1
+		}
+		taskText = wrapTaskWithAgentPrompt(prompt, taskText)
+	}
+
+	useStdin := cfg.ExplicitStdin || shouldUseStdin(taskText, piped)
+
+	targetArg := taskText
+	if useStdin {
+		targetArg = "-"
+	}
+	codexArgs := buildCodexArgsFn(cfg, targetArg)
+
+	logger := activeLogger()
+	if logger == nil {
+		fmt.Fprintln(os.Stderr, "ERROR: logger is not initialized")
+		return 1
+	}
+
+	fmt.Fprintf(os.Stderr, "[%s]\n", name)
+	fmt.Fprintf(os.Stderr, "  Backend: %s\n", cfg.Backend)
+	fmt.Fprintf(os.Stderr, "  Command: %s %s\n", codexCommand, strings.Join(codexArgs, " "))
+	fmt.Fprintf(os.Stderr, "  PID: %d\n", os.Getpid())
+	fmt.Fprintf(os.Stderr, "  Log: %s\n", logger.Path())
+
+	if useStdin {
+		var reasons []string
+		if piped {
+			reasons = append(reasons, "piped input")
+		}
+		if cfg.ExplicitStdin {
+			reasons = append(reasons, "explicit \"-\"")
+		}
+		if strings.Contains(taskText, "\n") {
+			reasons = append(reasons, "newline")
+		}
+		if strings.Contains(taskText, "\\") {
+			reasons = append(reasons, "backslash")
+		}
+		if strings.Contains(taskText, "\"") {
+			reasons = append(reasons, "double-quote")
+		}
+		if strings.Contains(taskText, "'") {
+			reasons = append(reasons, "single-quote")
+		}
+		if strings.Contains(taskText, "`") {
+			reasons = append(reasons, "backtick")
+		}
+		if strings.Contains(taskText, "$") {
+			reasons = append(reasons, "dollar")
+		}
+		if len(taskText) > 800 {
+			reasons = append(reasons, "length>800")
+		}
+		if len(reasons) > 0 {
+			logWarn(fmt.Sprintf("Using stdin mode for task due to: %s", strings.Join(reasons, ", ")))
+		}
+	}
+
+	logInfo(fmt.Sprintf("%s running...", cfg.Backend))
+
+	taskSpec := TaskSpec{
+		Task:            taskText,
+		WorkDir:         cfg.WorkDir,
+		Mode:            cfg.Mode,
+		SessionID:       cfg.SessionID,
+		Backend:         cfg.Backend,
+		Model:           cfg.Model,
+		ReasoningEffort: cfg.ReasoningEffort,
+		Agent:           cfg.Agent,
+		SkipPermissions: cfg.SkipPermissions,
+		UseStdin:        useStdin,
+	}
+
+	result := runTaskFn(taskSpec, false, cfg.Timeout)
+
+	if result.ExitCode != 0 {
+		return result.ExitCode
+	}
+
+	// Validate that we got a meaningful output message
+	if strings.TrimSpace(result.Message) == "" {
+		logError(fmt.Sprintf("no output message: backend=%s returned empty result.Message with exit_code=0", cfg.Backend))
+		return 1
+	}
+
+	fmt.Println(result.Message)
+	if result.SessionID != "" {
+		fmt.Printf("\n---\nSESSION_ID: %s\n", result.SessionID)
+	}
+
+	return 0
+}
--- a/codeagent-wrapper/internal/app/concurrent_stress_test.go
+++ b/codeagent-wrapper/internal/app/concurrent_stress_test.go
@@ -1,4 +1,4 @@
-package main
+package wrapper

 import (
 	"bufio"
@@ -11,9 +11,20 @@ import (
 	"sync/atomic"
 	"testing"
 	"time"
+
+	"github.com/goccy/go-json"
 )

 func stripTimestampPrefix(line string) string {
+	line = strings.TrimSpace(line)
+	if strings.HasPrefix(line, "{") {
+		var evt struct {
+			Message string `json:"message"`
+		}
+		if err := json.Unmarshal([]byte(line), &evt); err == nil && evt.Message != "" {
+			return evt.Message
+		}
+	}
 	if !strings.HasPrefix(line, "[") {
 		return line
 	}
--- a/codeagent-wrapper/internal/app/config_alias.go
+++ b/codeagent-wrapper/internal/app/config_alias.go
@@ -0,0 +1,7 @@
+package wrapper
+
+import config "codeagent-wrapper/internal/config"
+
+// Keep the existing Config name throughout the codebase, but source the
+// implementation from internal/config.
+type Config = config.Config
--- a/codeagent-wrapper/internal/app/executor_alias.go
+++ b/codeagent-wrapper/internal/app/executor_alias.go
@@ -0,0 +1,54 @@
+package wrapper
+
+import (
+	"context"
+
+	backend "codeagent-wrapper/internal/backend"
+	config "codeagent-wrapper/internal/config"
+	executor "codeagent-wrapper/internal/executor"
+)
+
+// defaultRunCodexTaskFn is the default implementation of runCodexTaskFn (exposed for test reset).
+func defaultRunCodexTaskFn(task TaskSpec, timeout int) TaskResult {
+	return executor.DefaultRunCodexTaskFn(task, timeout)
+}
+
+var runCodexTaskFn = defaultRunCodexTaskFn
+
+func topologicalSort(tasks []TaskSpec) ([][]TaskSpec, error) {
+	return executor.TopologicalSort(tasks)
+}
+
+func executeConcurrent(layers [][]TaskSpec, timeout int) []TaskResult {
+	maxWorkers := config.ResolveMaxParallelWorkers()
+	return executeConcurrentWithContext(context.Background(), layers, timeout, maxWorkers)
+}
+
+func executeConcurrentWithContext(parentCtx context.Context, layers [][]TaskSpec, timeout int, maxWorkers int) []TaskResult {
+	return executor.ExecuteConcurrentWithContext(parentCtx, layers, timeout, maxWorkers, runCodexTaskFn)
+}
+
+func generateFinalOutput(results []TaskResult) string {
+	return executor.GenerateFinalOutput(results)
+}
+
+func generateFinalOutputWithMode(results []TaskResult, summaryOnly bool) string {
+	return executor.GenerateFinalOutputWithMode(results, summaryOnly)
+}
+
+func buildCodexArgs(cfg *Config, targetArg string) []string {
+	return backend.BuildCodexArgs(cfg, targetArg)
+}
+
+func runCodexTask(taskSpec TaskSpec, silent bool, timeoutSec int) TaskResult {
+	return runCodexTaskWithContext(context.Background(), taskSpec, nil, nil, false, silent, timeoutSec)
+}
+
+func runCodexProcess(parentCtx context.Context, codexArgs []string, taskText string, useStdin bool, timeoutSec int) (message, threadID string, exitCode int) {
+	res := runCodexTaskWithContext(parentCtx, TaskSpec{Task: taskText, WorkDir: defaultWorkdir, Mode: "new", UseStdin: useStdin}, nil, codexArgs, true, false, timeoutSec)
+	return res.Message, res.SessionID, res.ExitCode
+}
+
+func runCodexTaskWithContext(parentCtx context.Context, taskSpec TaskSpec, backend Backend, customArgs []string, useCustomArgs bool, silent bool, timeoutSec int) TaskResult {
+	return executor.RunCodexTaskWithContext(parentCtx, taskSpec, backend, codexCommand, buildCodexArgsFn, customArgs, useCustomArgs, silent, timeoutSec)
+}
--- a/codeagent-wrapper/internal/app/executor_concurrent_test.go
+++ b/codeagent-wrapper/internal/app/executor_concurrent_test.go
@@ -1,4 +1,4 @@
-package main
+package wrapper

 import (
 	"bufio"
@@ -10,13 +10,15 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"runtime"
 	"slices"
 	"strings"
 	"sync"
 	"sync/atomic"
-	"syscall"
 	"testing"
 	"time"
+
+	executor "codeagent-wrapper/internal/executor"
 )

 var executorTestTaskCounter atomic.Int64
@@ -32,7 +34,12 @@ type execFakeProcess struct {
 	mu      sync.Mutex
 }

-func (p *execFakeProcess) Pid() int { return p.pid }
+func (p *execFakeProcess) Pid() int {
+	if runtime.GOOS == "windows" {
+		return 0
+	}
+	return p.pid
+}
 func (p *execFakeProcess) Kill() error {
 	p.killed.Add(1)
 	return nil
@@ -84,7 +91,8 @@ func (rc *reasonReadCloser) record(reason string) {

 type execFakeRunner struct {
 	stdout          io.ReadCloser
-	process         processHandle
+	stderr          io.ReadCloser
+	process         executor.ProcessHandle
 	stdin           io.WriteCloser
 	dir             string
 	env             map[string]string
@@ -92,6 +100,7 @@ type execFakeRunner struct {
 	waitDelay       time.Duration
 	startErr        error
 	stdoutErr       error
+	stderrErr       error
 	stdinErr        error
 	allowNilProcess bool
 	started         atomic.Bool
@@ -119,6 +128,15 @@ func (f *execFakeRunner) StdoutPipe() (io.ReadCloser, error) {
 	}
 	return f.stdout, nil
 }
+func (f *execFakeRunner) StderrPipe() (io.ReadCloser, error) {
+	if f.stderrErr != nil {
+		return nil, f.stderrErr
+	}
+	if f.stderr == nil {
+		f.stderr = io.NopCloser(strings.NewReader(""))
+	}
+	return f.stderr, nil
+}
 func (f *execFakeRunner) StdinPipe() (io.WriteCloser, error) {
 	if f.stdinErr != nil {
 		return nil, f.stdinErr
@@ -141,7 +159,7 @@ func (f *execFakeRunner) SetEnv(env map[string]string) {
 		f.env[k] = v
 	}
 }
-func (f *execFakeRunner) Process() processHandle {
+func (f *execFakeRunner) Process() executor.ProcessHandle {
 	if f.process != nil {
 		return f.process
 	}
@@ -151,220 +169,15 @@ func (f *execFakeRunner) Process() processHandle {
 	return &execFakeProcess{pid: 1}
 }

-func TestExecutorHelperCoverage(t *testing.T) {
-	t.Run("realCmdAndProcess", func(t *testing.T) {
-		rc := &realCmd{}
-		if err := rc.Start(); err == nil {
-			t.Fatalf("expected error for nil command")
-		}
-		if err := rc.Wait(); err == nil {
-			t.Fatalf("expected error for nil command")
-		}
-		if _, err := rc.StdoutPipe(); err == nil {
-			t.Fatalf("expected error for nil command")
-		}
-		if _, err := rc.StdinPipe(); err == nil {
-			t.Fatalf("expected error for nil command")
-		}
-		rc.SetStderr(io.Discard)
-		if rc.Process() != nil {
-			t.Fatalf("expected nil process")
-		}
-		rcWithCmd := &realCmd{cmd: &exec.Cmd{}}
-		rcWithCmd.SetStderr(io.Discard)
-		rcWithCmd.SetDir("/tmp")
-		if rcWithCmd.cmd.Dir != "/tmp" {
-			t.Fatalf("expected SetDir to set cmd.Dir, got %q", rcWithCmd.cmd.Dir)
-		}
-		echoCmd := exec.Command("echo", "ok")
-		rcProc := &realCmd{cmd: echoCmd}
-		stdoutPipe, err := rcProc.StdoutPipe()
-		if err != nil {
-			t.Fatalf("StdoutPipe error: %v", err)
-		}
-		stdinPipe, err := rcProc.StdinPipe()
-		if err != nil {
-			t.Fatalf("StdinPipe error: %v", err)
-		}
-		rcProc.SetStderr(io.Discard)
-		if err := rcProc.Start(); err != nil {
-			t.Fatalf("Start failed: %v", err)
-		}
-		_, _ = stdinPipe.Write([]byte{})
-		_ = stdinPipe.Close()
-		procHandle := rcProc.Process()
-		if procHandle == nil {
-			t.Fatalf("expected process handle")
-		}
-		_ = procHandle.Signal(syscall.SIGTERM)
-		_ = procHandle.Kill()
-		_ = rcProc.Wait()
-		_, _ = io.ReadAll(stdoutPipe)
-
-		rp := &realProcess{}
-		if rp.Pid() != 0 {
-			t.Fatalf("nil process should have pid 0")
-		}
-		if rp.Kill() != nil {
-			t.Fatalf("nil process Kill should be nil")
-		}
-		if rp.Signal(syscall.SIGTERM) != nil {
-			t.Fatalf("nil process Signal should be nil")
-		}
-		rpLive := &realProcess{proc: &os.Process{Pid: 99}}
-		if rpLive.Pid() != 99 {
-			t.Fatalf("expected pid 99, got %d", rpLive.Pid())
-		}
-		_ = rpLive.Kill()
-		_ = rpLive.Signal(syscall.SIGTERM)
-	})
-
-	t.Run("topologicalSortAndSkip", func(t *testing.T) {
-		layers, err := topologicalSort([]TaskSpec{{ID: "root"}, {ID: "child", Dependencies: []string{"root"}}})
-		if err != nil || len(layers) != 2 {
-			t.Fatalf("unexpected topological sort result: layers=%d err=%v", len(layers), err)
-		}
-		if _, err := topologicalSort([]TaskSpec{{ID: "cycle", Dependencies: []string{"cycle"}}}); err == nil {
-			t.Fatalf("expected cycle detection error")
-		}
-
-		failed := map[string]TaskResult{"root": {ExitCode: 1}}
-		if skip, _ := shouldSkipTask(TaskSpec{ID: "child", Dependencies: []string{"root"}}, failed); !skip {
-			t.Fatalf("should skip when dependency failed")
-		}
-		if skip, _ := shouldSkipTask(TaskSpec{ID: "leaf"}, failed); skip {
-			t.Fatalf("should not skip task without dependencies")
-		}
-		if skip, _ := shouldSkipTask(TaskSpec{ID: "child-ok", Dependencies: []string{"root"}}, map[string]TaskResult{}); skip {
-			t.Fatalf("should not skip when dependencies succeeded")
-		}
-	})
-
-	t.Run("cancelledTaskResult", func(t *testing.T) {
-		ctx, cancel := context.WithCancel(context.Background())
-		cancel()
-		res := cancelledTaskResult("t1", ctx)
-		if res.ExitCode != 130 {
-			t.Fatalf("expected cancel exit code, got %d", res.ExitCode)
-		}
-
-		timeoutCtx, timeoutCancel := context.WithTimeout(context.Background(), 0)
-		defer timeoutCancel()
-		res = cancelledTaskResult("t2", timeoutCtx)
-		if res.ExitCode != 124 {
-			t.Fatalf("expected timeout exit code, got %d", res.ExitCode)
-		}
-	})
-
-	t.Run("generateFinalOutputAndArgs", func(t *testing.T) {
-		const key = "CODEX_BYPASS_SANDBOX"
-		t.Cleanup(func() { os.Unsetenv(key) })
-		os.Unsetenv(key)
-
-		out := generateFinalOutput([]TaskResult{
-			{TaskID: "ok", ExitCode: 0},
-			{TaskID: "fail", ExitCode: 1, Error: "boom"},
-		})
-		if !strings.Contains(out, "ok") || !strings.Contains(out, "fail") {
-			t.Fatalf("unexpected summary output: %s", out)
-		}
-		// Test summary mode (default) - should have new format with ### headers
-		out = generateFinalOutput([]TaskResult{{TaskID: "rich", ExitCode: 0, SessionID: "sess", LogPath: "/tmp/log", Message: "hello"}})
-		if !strings.Contains(out, "### rich") {
-			t.Fatalf("summary output missing task header: %s", out)
-		}
-		// Test full output mode - should have Session and Message
-		out = generateFinalOutputWithMode([]TaskResult{{TaskID: "rich", ExitCode: 0, SessionID: "sess", LogPath: "/tmp/log", Message: "hello"}}, false)
-		if !strings.Contains(out, "Session: sess") || !strings.Contains(out, "Log: /tmp/log") || !strings.Contains(out, "hello") {
-			t.Fatalf("full output missing fields: %s", out)
-		}
-
-		args := buildCodexArgs(&Config{Mode: "new", WorkDir: "/tmp"}, "task")
-		if !slices.Equal(args, []string{"e", "--skip-git-repo-check", "-C", "/tmp", "--json", "task"}) {
-			t.Fatalf("unexpected codex args: %+v", args)
-		}
-		args = buildCodexArgs(&Config{Mode: "resume", SessionID: "sess"}, "target")
-		if !slices.Equal(args, []string{"e", "--skip-git-repo-check", "--json", "resume", "sess", "target"}) {
-			t.Fatalf("unexpected resume args: %+v", args)
-		}
-	})
-
-	t.Run("generateFinalOutputASCIIMode", func(t *testing.T) {
-		t.Setenv("CODEAGENT_ASCII_MODE", "true")
-
-		results := []TaskResult{
-			{TaskID: "ok", ExitCode: 0, Coverage: "92%", CoverageNum: 92, CoverageTarget: 90, KeyOutput: "done"},
-			{TaskID: "warn", ExitCode: 0, Coverage: "80%", CoverageNum: 80, CoverageTarget: 90, KeyOutput: "did"},
-			{TaskID: "bad", ExitCode: 2, Error: "boom"},
-		}
-		out := generateFinalOutput(results)
-
-		for _, sym := range []string{"PASS", "WARN", "FAIL"} {
-			if !strings.Contains(out, sym) {
-				t.Fatalf("ASCII mode should include %q, got: %s", sym, out)
-			}
-		}
-		for _, sym := range []string{"✓", "⚠️", "✗"} {
-			if strings.Contains(out, sym) {
-				t.Fatalf("ASCII mode should not include %q, got: %s", sym, out)
-			}
-		}
-	})
-
-	t.Run("generateFinalOutputUnicodeMode", func(t *testing.T) {
-		t.Setenv("CODEAGENT_ASCII_MODE", "false")
-
-		results := []TaskResult{
-			{TaskID: "ok", ExitCode: 0, Coverage: "92%", CoverageNum: 92, CoverageTarget: 90, KeyOutput: "done"},
-			{TaskID: "warn", ExitCode: 0, Coverage: "80%", CoverageNum: 80, CoverageTarget: 90, KeyOutput: "did"},
-			{TaskID: "bad", ExitCode: 2, Error: "boom"},
-		}
-		out := generateFinalOutput(results)
-
-		for _, sym := range []string{"✓", "⚠️", "✗"} {
-			if !strings.Contains(out, sym) {
-				t.Fatalf("Unicode mode should include %q, got: %s", sym, out)
-			}
-		}
-	})
-
-	t.Run("executeConcurrentWrapper", func(t *testing.T) {
-		orig := runCodexTaskFn
-		defer func() { runCodexTaskFn = orig }()
-		runCodexTaskFn = func(task TaskSpec, timeout int) TaskResult {
-			return TaskResult{TaskID: task.ID, ExitCode: 0, Message: "done"}
-		}
-		os.Setenv("CODEAGENT_MAX_PARALLEL_WORKERS", "1")
-		defer os.Unsetenv("CODEAGENT_MAX_PARALLEL_WORKERS")
-
-		results := executeConcurrent([][]TaskSpec{{{ID: "wrap"}}}, 1)
-		if len(results) != 1 || results[0].TaskID != "wrap" {
-			t.Fatalf("unexpected wrapper results: %+v", results)
-		}
-
-		unbounded := executeConcurrentWithContext(context.Background(), [][]TaskSpec{{{ID: "unbounded"}}}, 1, 0)
-		if len(unbounded) != 1 || unbounded[0].ExitCode != 0 {
-			t.Fatalf("unexpected unbounded result: %+v", unbounded)
-		}
-
-		ctx, cancel := context.WithCancel(context.Background())
-		cancel()
-		cancelled := executeConcurrentWithContext(ctx, [][]TaskSpec{{{ID: "cancel"}}}, 1, 1)
-		if cancelled[0].ExitCode == 0 {
-			t.Fatalf("expected cancelled result, got %+v", cancelled[0])
-		}
-	})
-}
-
 func TestExecutorRunCodexTaskWithContext(t *testing.T) {
-	origRunner := newCommandRunner
-	defer func() { newCommandRunner = origRunner }()
+	defer resetTestHooks()

 	t.Run("resumeMissingSessionID", func(t *testing.T) {
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			t.Fatalf("unexpected command execution for invalid resume config")
 			return nil
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })

 		res := runCodexTaskWithContext(context.Background(), TaskSpec{Task: "payload", WorkDir: ".", Mode: "resume"}, nil, nil, false, false, 1)
 		if res.ExitCode == 0 || !strings.Contains(res.Error, "session_id") {
@@ -374,13 +187,14 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {

 	t.Run("success", func(t *testing.T) {
 		var firstStdout *reasonReadCloser
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			rc := newReasonReadCloser(`{"type":"item.completed","item":{"type":"agent_message","text":"hello"}}`)
 			if firstStdout == nil {
 				firstStdout = rc
 			}
 			return &execFakeRunner{stdout: rc, process: &execFakeProcess{pid: 1234}}
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })

 		res := runCodexTaskWithContext(context.Background(), TaskSpec{ID: "task-1", Task: "payload", WorkDir: "."}, nil, nil, false, false, 1)
 		if res.Error != "" || res.Message != "hello" || res.ExitCode != 0 {
@@ -410,17 +224,18 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {
 	})

 	t.Run("startErrors", func(t *testing.T) {
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			return &execFakeRunner{startErr: errors.New("executable file not found"), process: &execFakeProcess{pid: 1}}
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })
 		res := runCodexTaskWithContext(context.Background(), TaskSpec{Task: "payload", WorkDir: "."}, nil, nil, false, false, 1)
 		if res.ExitCode != 127 {
 			t.Fatalf("expected missing executable exit code, got %d", res.ExitCode)
 		}

-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			return &execFakeRunner{startErr: errors.New("start failed"), process: &execFakeProcess{pid: 2}}
-		}
+		})
 		res = runCodexTaskWithContext(context.Background(), TaskSpec{Task: "payload", WorkDir: "."}, nil, nil, false, false, 1)
 		if res.ExitCode == 0 {
 			t.Fatalf("expected non-zero exit on start failure")
@@ -428,13 +243,14 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {
 	})

 	t.Run("timeoutAndPipes", func(t *testing.T) {
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			return &execFakeRunner{
 				stdout:    newReasonReadCloser(`{"type":"item.completed","item":{"type":"agent_message","text":"slow"}}`),
 				process:   &execFakeProcess{pid: 5},
 				waitDelay: 20 * time.Millisecond,
 			}
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })
 		res := runCodexTaskWithContext(context.Background(), TaskSpec{Task: "payload", WorkDir: ".", UseStdin: true}, nil, nil, false, false, 0)
 		if res.ExitCode == 0 {
 			t.Fatalf("expected timeout result, got %+v", res)
@@ -442,17 +258,18 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {
 	})

 	t.Run("pipeErrors", func(t *testing.T) {
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			return &execFakeRunner{stdoutErr: errors.New("stdout fail"), process: &execFakeProcess{pid: 6}}
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })
 		res := runCodexTaskWithContext(context.Background(), TaskSpec{Task: "payload", WorkDir: "."}, nil, nil, false, false, 1)
 		if res.ExitCode == 0 {
 			t.Fatalf("expected failure on stdout pipe error")
 		}

-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			return &execFakeRunner{stdinErr: errors.New("stdin fail"), process: &execFakeProcess{pid: 7}}
-		}
+		})
 		res = runCodexTaskWithContext(context.Background(), TaskSpec{Task: "payload", WorkDir: ".", UseStdin: true}, nil, nil, false, false, 1)
 		if res.ExitCode == 0 {
 			t.Fatalf("expected failure on stdin pipe error")
@@ -465,13 +282,14 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {
 		if exitErr == nil {
 			t.Fatalf("expected exec.ExitError")
 		}
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			return &execFakeRunner{
 				stdout:  newReasonReadCloser(`{"type":"item.completed","item":{"type":"agent_message","text":"ignored"}}`),
 				process: &execFakeProcess{pid: 8},
 				waitErr: exitErr,
 			}
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })
 		res := runCodexTaskWithContext(context.Background(), TaskSpec{Task: "payload", WorkDir: "."}, nil, nil, false, false, 1)
 		if res.ExitCode == 0 {
 			t.Fatalf("expected non-zero exit on wait error")
@@ -479,13 +297,14 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {
 	})

 	t.Run("contextCancelled", func(t *testing.T) {
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			return &execFakeRunner{
 				stdout:    newReasonReadCloser(`{"type":"item.completed","item":{"type":"agent_message","text":"cancel"}}`),
 				process:   &execFakeProcess{pid: 9},
 				waitDelay: 10 * time.Millisecond,
 			}
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })
 		ctx, cancel := context.WithCancel(context.Background())
 		cancel()
 		res := runCodexTaskWithContext(ctx, TaskSpec{Task: "payload", WorkDir: "."}, nil, nil, false, false, 1)
@@ -495,12 +314,13 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {
 	})

 	t.Run("silentLogger", func(t *testing.T) {
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			return &execFakeRunner{
 				stdout:  newReasonReadCloser(`{"type":"item.completed","item":{"type":"agent_message","text":"quiet"}}`),
 				process: &execFakeProcess{pid: 10},
 			}
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })
 		_ = closeLogger()
 		res := runCodexTaskWithContext(context.Background(), TaskSpec{Task: "payload", WorkDir: "."}, nil, nil, false, true, 1)
 		if res.ExitCode != 0 || res.LogPath == "" {
@@ -510,12 +330,13 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {
 	})

 	t.Run("injectedLogger", func(t *testing.T) {
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			return &execFakeRunner{
 				stdout:  newReasonReadCloser(`{"type":"item.completed","item":{"type":"agent_message","text":"injected"}}`),
 				process: &execFakeProcess{pid: 12},
 			}
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })
 		_ = closeLogger()

 		injected, err := NewLoggerWithSuffix("executor-injected")
@@ -527,7 +348,7 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {
 			_ = os.Remove(injected.Path())
 		}()

-		ctx := withTaskLogger(context.Background(), injected)
+		ctx := executor.WithTaskLogger(context.Background(), injected)
 		res := runCodexTaskWithContext(ctx, TaskSpec{ID: "task-injected", Task: "payload", WorkDir: "."}, nil, nil, false, true, 1)
 		if res.ExitCode != 0 || res.LogPath != injected.Path() {
 			t.Fatalf("expected injected logger path, got %+v", res)
@@ -547,12 +368,13 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {
 	})

 	t.Run("contextLoggerWithoutParent", func(t *testing.T) {
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			return &execFakeRunner{
 				stdout:  newReasonReadCloser(`{"type":"item.completed","item":{"type":"agent_message","text":"ctx"}}`),
 				process: &execFakeProcess{pid: 14},
 			}
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })
 		_ = closeLogger()

 		taskLogger, err := NewLoggerWithSuffix("executor-taskctx")
@@ -564,8 +386,8 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {
 			_ = os.Remove(taskLogger.Path())
 		})

-		ctx := withTaskLogger(context.Background(), taskLogger)
-		res := runCodexTaskWithContext(nil, TaskSpec{ID: "task-context", Task: "payload", WorkDir: ".", Context: ctx}, nil, nil, false, true, 1)
+		ctx := executor.WithTaskLogger(context.Background(), taskLogger)
+		res := runCodexTaskWithContext(context.TODO(), TaskSpec{ID: "task-context", Task: "payload", WorkDir: ".", Context: ctx}, nil, nil, false, true, 1)
 		if res.ExitCode != 0 || res.LogPath != taskLogger.Path() {
 			t.Fatalf("expected task logger to be reused from spec context, got %+v", res)
 		}
@@ -585,16 +407,17 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {

 	t.Run("backendSetsDirAndNilContext", func(t *testing.T) {
 		var rc *execFakeRunner
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			rc = &execFakeRunner{
 				stdout:  newReasonReadCloser(`{"type":"item.completed","item":{"type":"agent_message","text":"backend"}}`),
 				process: &execFakeProcess{pid: 13},
 			}
 			return rc
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })

 		_ = closeLogger()
-		res := runCodexTaskWithContext(nil, TaskSpec{ID: "task-backend", Task: "payload", WorkDir: "/tmp"}, ClaudeBackend{}, nil, false, false, 1)
+		res := runCodexTaskWithContext(context.TODO(), TaskSpec{ID: "task-backend", Task: "payload", WorkDir: "/tmp"}, ClaudeBackend{}, nil, false, false, 1)
 		if res.ExitCode != 0 || res.Message != "backend" {
 			t.Fatalf("unexpected result: %+v", res)
 		}
@@ -603,13 +426,36 @@ func TestExecutorRunCodexTaskWithContext(t *testing.T) {
 		}
 	})

+	t.Run("claudeSkipPermissionsPropagatesFromTaskSpec", func(t *testing.T) {
+		t.Setenv("CODEAGENT_SKIP_PERMISSIONS", "false")
+		var gotArgs []string
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
+			gotArgs = append([]string(nil), args...)
+			return &execFakeRunner{
+				stdout:  newReasonReadCloser(`{"type":"item.completed","item":{"type":"agent_message","text":"ok"}}`),
+				process: &execFakeProcess{pid: 15},
+			}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })
+
+		_ = closeLogger()
+		res := runCodexTaskWithContext(context.Background(), TaskSpec{ID: "task-skip", Task: "payload", WorkDir: ".", SkipPermissions: true}, ClaudeBackend{}, nil, false, false, 1)
+		if res.ExitCode != 0 || res.Error != "" {
+			t.Fatalf("unexpected result: %+v", res)
+		}
+		if !slices.Contains(gotArgs, "--dangerously-skip-permissions") {
+			t.Fatalf("expected --dangerously-skip-permissions in args, got %v", gotArgs)
+		}
+	})
+
 	t.Run("missingMessage", func(t *testing.T) {
-		newCommandRunner = func(ctx context.Context, name string, args ...string) commandRunner {
+		executor.SetNewCommandRunner(func(ctx context.Context, name string, args ...string) executor.CommandRunner {
 			return &execFakeRunner{
 				stdout:  newReasonReadCloser(`{"type":"item.completed","item":{"type":"task","text":"noop"}}`),
 				process: &execFakeProcess{pid: 11},
 			}
-		}
+		})
+		t.Cleanup(func() { executor.SetNewCommandRunner(nil) })
 		res := runCodexTaskWithContext(context.Background(), TaskSpec{Task: "payload", WorkDir: "."}, nil, nil, false, false, 1)
 		if res.ExitCode == 0 {
 			t.Fatalf("expected failure when no agent_message returned")
@@ -635,7 +481,7 @@ func TestExecutorParallelLogIsolation(t *testing.T) {

 	origRun := runCodexTaskFn
 	runCodexTaskFn = func(task TaskSpec, timeout int) TaskResult {
-		logger := taskLoggerFromContext(task.Context)
+		logger := executor.TaskLoggerFromContext(task.Context)
 		if logger == nil {
 			return TaskResult{TaskID: task.ID, ExitCode: 1, Error: "missing task logger"}
 		}
@@ -659,7 +505,7 @@ func TestExecutorParallelLogIsolation(t *testing.T) {
 	os.Stderr = stderrW
 	defer func() { os.Stderr = oldStderr }()

-	results := executeConcurrentWithContext(nil, [][]TaskSpec{{{ID: taskA}, {ID: taskB}}}, 1, -1)
+	results := executeConcurrentWithContext(context.TODO(), [][]TaskSpec{{{ID: taskA}, {ID: taskB}}}, 1, -1)

 	_ = stderrW.Close()
 	os.Stderr = oldStderr
@@ -725,7 +571,7 @@ func TestConcurrentExecutorParallelLogIsolationAndClosure(t *testing.T) {
 	t.Setenv("TMPDIR", tempDir)

 	oldArgs := os.Args
-	os.Args = []string{defaultWrapperName}
+	os.Args = []string{wrapperName}
 	t.Cleanup(func() { os.Args = oldArgs })

 	mainLogger, err := NewLoggerWithSuffix("concurrent-main")
@@ -771,7 +617,7 @@ func TestConcurrentExecutorParallelLogIsolationAndClosure(t *testing.T) {
 	runCodexTaskFn = func(task TaskSpec, timeout int) TaskResult {
 		readyCh <- struct{}{}

-		logger := taskLoggerFromContext(task.Context)
+		logger := executor.TaskLoggerFromContext(task.Context)
 		loggerCh <- taskLoggerInfo{taskID: task.ID, logger: logger}
 		if logger == nil {
 			return TaskResult{TaskID: task.ID, ExitCode: 1, Error: "missing task logger"}
@@ -858,15 +704,9 @@ func TestConcurrentExecutorParallelLogIsolationAndClosure(t *testing.T) {
 	}

 	for taskID, logger := range loggers {
-		if !logger.closed.Load() {
+		if !logger.IsClosed() {
 			t.Fatalf("expected task logger to be closed for %q", taskID)
 		}
-		if logger.file == nil {
-			t.Fatalf("expected task logger file to be non-nil for %q", taskID)
-		}
-		if _, err := logger.file.Write([]byte("x")); err == nil {
-			t.Fatalf("expected task logger file to be closed for %q", taskID)
-		}
 	}

 	mainLogger.Flush()
@@ -936,10 +776,10 @@ func parseTaskIDFromLogLine(line string) (string, bool) {
 }

 func TestExecutorTaskLoggerContext(t *testing.T) {
-	if taskLoggerFromContext(nil) != nil {
-		t.Fatalf("expected nil logger from nil context")
+	if executor.TaskLoggerFromContext(context.TODO()) != nil {
+		t.Fatalf("expected nil logger from TODO context")
 	}
-	if taskLoggerFromContext(context.Background()) != nil {
+	if executor.TaskLoggerFromContext(context.Background()) != nil {
 		t.Fatalf("expected nil logger when context has no logger")
 	}

@@ -952,12 +792,12 @@ func TestExecutorTaskLoggerContext(t *testing.T) {
 		_ = os.Remove(logger.Path())
 	}()

-	ctx := withTaskLogger(context.Background(), logger)
-	if got := taskLoggerFromContext(ctx); got != logger {
+	ctx := executor.WithTaskLogger(context.Background(), logger)
+	if got := executor.TaskLoggerFromContext(ctx); got != logger {
 		t.Fatalf("expected logger roundtrip, got %v", got)
 	}

-	if taskLoggerFromContext(withTaskLogger(context.Background(), nil)) != nil {
+	if executor.TaskLoggerFromContext(executor.WithTaskLogger(context.Background(), nil)) != nil {
 		t.Fatalf("expected nil logger when injected logger is nil")
 	}
 }
@@ -1114,7 +954,7 @@ func TestExecutorExecuteConcurrentWithContextBranches(t *testing.T) {

 		orig := runCodexTaskFn
 		runCodexTaskFn = func(task TaskSpec, timeout int) TaskResult {
-			logger := taskLoggerFromContext(task.Context)
+			logger := executor.TaskLoggerFromContext(task.Context)
 			if logger != mainLogger {
 				return TaskResult{TaskID: task.ID, ExitCode: 1, Error: "unexpected logger"}
 			}
@@ -1148,9 +988,6 @@ func TestExecutorExecuteConcurrentWithContextBranches(t *testing.T) {
 			if res.LogPath != mainLogger.Path() {
 				t.Fatalf("shared log path mismatch: got %q want %q", res.LogPath, mainLogger.Path())
 			}
-			if !res.sharedLog {
-				t.Fatalf("expected sharedLog flag for %+v", res)
-			}
 			if !strings.Contains(stderrOut, "Log (shared)") {
 				t.Fatalf("stderr missing shared marker: %s", stderrOut)
 			}
@@ -1179,7 +1016,7 @@ func TestExecutorExecuteConcurrentWithContextBranches(t *testing.T) {

 		orig := runCodexTaskFn
 		runCodexTaskFn = func(task TaskSpec, timeout int) TaskResult {
-			logger := taskLoggerFromContext(task.Context)
+			logger := executor.TaskLoggerFromContext(task.Context)
 			if logger == nil {
 				return TaskResult{TaskID: task.ID, ExitCode: 1, Error: "missing logger"}
 			}
@@ -1217,7 +1054,14 @@ func TestExecutorExecuteConcurrentWithContextBranches(t *testing.T) {
 			if err != nil {
 				t.Fatalf("failed to read log %q: %v", res.LogPath, err)
 			}
-			if !strings.Contains(string(data), "TASK="+res.TaskID) {
+			found := false
+			for _, line := range strings.Split(string(data), "\n") {
+				if strings.Contains(stripTimestampPrefix(line), "TASK="+res.TaskID) {
+					found = true
+					break
+				}
+			}
+			if !found {
 				t.Fatalf("log for %q missing task marker, content: %s", res.TaskID, string(data))
 			}
 			_ = os.Remove(res.LogPath)
@@ -1225,147 +1069,6 @@ func TestExecutorExecuteConcurrentWithContextBranches(t *testing.T) {
 	})
 }

-func TestExecutorSignalAndTermination(t *testing.T) {
-	forceKillDelay.Store(0)
-	defer forceKillDelay.Store(5)
-
-	proc := &execFakeProcess{pid: 42}
-	cmd := &execFakeRunner{process: proc}
-
-	origNotify := signalNotifyFn
-	origStop := signalStopFn
-	defer func() {
-		signalNotifyFn = origNotify
-		signalStopFn = origStop
-	}()
-
-	signalNotifyFn = func(c chan<- os.Signal, sigs ...os.Signal) {
-		go func() { c <- syscall.SIGINT }()
-	}
-	signalStopFn = func(c chan<- os.Signal) {}
-
-	forwardSignals(context.Background(), cmd, func(string) {})
-	time.Sleep(20 * time.Millisecond)
-
-	proc.mu.Lock()
-	signalled := len(proc.signals)
-	proc.mu.Unlock()
-	if signalled == 0 {
-		t.Fatalf("process did not receive signal")
-	}
-	if proc.killed.Load() == 0 {
-		t.Fatalf("process was not killed after signal")
-	}
-
-	timer := terminateProcess(cmd)
-	if timer == nil {
-		t.Fatalf("terminateProcess returned nil timer")
-	}
-	timer.Stop()
-
-	ft := terminateCommand(cmd)
-	if ft == nil {
-		t.Fatalf("terminateCommand returned nil")
-	}
-	ft.Stop()
-
-	cmdKill := &execFakeRunner{process: &execFakeProcess{pid: 50}}
-	ftKill := terminateCommand(cmdKill)
-	time.Sleep(10 * time.Millisecond)
-	if p, ok := cmdKill.process.(*execFakeProcess); ok && p.killed.Load() == 0 {
-		t.Fatalf("terminateCommand did not kill process")
-	}
-	ftKill.Stop()
-
-	cmdKill2 := &execFakeRunner{process: &execFakeProcess{pid: 51}}
-	timer2 := terminateProcess(cmdKill2)
-	time.Sleep(10 * time.Millisecond)
-	if p, ok := cmdKill2.process.(*execFakeProcess); ok && p.killed.Load() == 0 {
-		t.Fatalf("terminateProcess did not kill process")
-	}
-	timer2.Stop()
-
-	if terminateCommand(nil) != nil {
-		t.Fatalf("terminateCommand should return nil for nil cmd")
-	}
-	if terminateCommand(&execFakeRunner{allowNilProcess: true}) != nil {
-		t.Fatalf("terminateCommand should return nil when process is nil")
-	}
-	if terminateProcess(nil) != nil {
-		t.Fatalf("terminateProcess should return nil for nil cmd")
-	}
-	if terminateProcess(&execFakeRunner{allowNilProcess: true}) != nil {
-		t.Fatalf("terminateProcess should return nil when process is nil")
-	}
-
-	signalNotifyFn = func(c chan<- os.Signal, sigs ...os.Signal) {}
-	ctxDone, cancelDone := context.WithCancel(context.Background())
-	cancelDone()
-	forwardSignals(ctxDone, &execFakeRunner{process: &execFakeProcess{pid: 70}}, func(string) {})
-}
-
-func TestExecutorCancelReasonAndCloseWithReason(t *testing.T) {
-	if reason := cancelReason("", nil); !strings.Contains(reason, "Context") {
-		t.Fatalf("unexpected cancelReason for nil ctx: %s", reason)
-	}
-	ctx, cancel := context.WithTimeout(context.Background(), 0)
-	defer cancel()
-	if !strings.Contains(cancelReason("cmd", ctx), "timeout") {
-		t.Fatalf("expected timeout reason")
-	}
-	cancelCtx, cancelFn := context.WithCancel(context.Background())
-	cancelFn()
-	if !strings.Contains(cancelReason("cmd", cancelCtx), "Execution cancelled") {
-		t.Fatalf("expected cancellation reason")
-	}
-	if !strings.Contains(cancelReason("", cancelCtx), "codex") {
-		t.Fatalf("expected default command name in cancel reason")
-	}
-
-	rc := &reasonReadCloser{r: strings.NewReader("data"), closedC: make(chan struct{}, 1)}
-	closeWithReason(rc, "why")
-	select {
-	case <-rc.closedC:
-	default:
-		t.Fatalf("CloseWithReason was not called")
-	}
-
-	plain := io.NopCloser(strings.NewReader("x"))
-	closeWithReason(plain, "noop")
-	closeWithReason(nil, "noop")
-}
-
-func TestExecutorForceKillTimerStop(t *testing.T) {
-	done := make(chan struct{}, 1)
-	ft := &forceKillTimer{timer: time.AfterFunc(50*time.Millisecond, func() { done <- struct{}{} }), done: done}
-	ft.Stop()
-
-	done2 := make(chan struct{}, 1)
-	ft2 := &forceKillTimer{timer: time.AfterFunc(0, func() { done2 <- struct{}{} }), done: done2}
-	time.Sleep(10 * time.Millisecond)
-	ft2.Stop()
-
-	var nilTimer *forceKillTimer
-	nilTimer.Stop()
-	(&forceKillTimer{}).Stop()
-}
-
-func TestExecutorForwardSignalsDefaults(t *testing.T) {
-	origNotify := signalNotifyFn
-	origStop := signalStopFn
-	signalNotifyFn = nil
-	signalStopFn = nil
-	defer func() {
-		signalNotifyFn = origNotify
-		signalStopFn = origStop
-	}()
-
-	ctx, cancel := context.WithCancel(context.Background())
-	cancel()
-	forwardSignals(ctx, &execFakeRunner{process: &execFakeProcess{pid: 80}}, func(string) {})
-	time.Sleep(10 * time.Millisecond)
-}
-
 func TestExecutorSharedLogFalseWhenCustomLogPath(t *testing.T) {
 	devNull, err := os.OpenFile(os.DevNull, os.O_WRONLY, 0)
 	if err != nil {
@@ -1421,10 +1124,9 @@ func TestExecutorSharedLogFalseWhenCustomLogPath(t *testing.T) {
 	}

 	res := results[0]
-	// 关键断言：即使 handle.shared=true（因为 task logger 创建失败），
-	// 但因为 LogPath 不等于主 logger 的路径，sharedLog 应为 false
-	if res.sharedLog {
-		t.Fatalf("expected sharedLog=false when LogPath differs from shared logger, got true")
+	out := generateFinalOutputWithMode(results, false)
+	if strings.Contains(out, "(shared)") {
+		t.Fatalf("did not expect shared marker when LogPath differs from shared logger, got: %s", out)
 	}

 	// 验证 LogPath 确实是自定义的
--- a/codeagent-wrapper/internal/app/logger.go
+++ b/codeagent-wrapper/internal/app/logger.go
@@ -0,0 +1,26 @@
+package wrapper
+
+import ilogger "codeagent-wrapper/internal/logger"
+
+type Logger = ilogger.Logger
+type CleanupStats = ilogger.CleanupStats
+
+func NewLogger() (*Logger, error) { return ilogger.NewLogger() }
+
+func NewLoggerWithSuffix(suffix string) (*Logger, error) { return ilogger.NewLoggerWithSuffix(suffix) }
+
+func setLogger(l *Logger) { ilogger.SetLogger(l) }
+
+func closeLogger() error { return ilogger.CloseLogger() }
+
+func activeLogger() *Logger { return ilogger.ActiveLogger() }
+
+func logInfo(msg string) { ilogger.LogInfo(msg) }
+
+func logWarn(msg string) { ilogger.LogWarn(msg) }
+
+func logError(msg string) { ilogger.LogError(msg) }
+
+func cleanupOldLogs() (CleanupStats, error) { return ilogger.CleanupOldLogs() }
+
+func sanitizeLogSuffix(raw string) string { return ilogger.SanitizeLogSuffix(raw) }
--- a/codeagent-wrapper/internal/app/main_integration_test.go
+++ b/codeagent-wrapper/internal/app/main_integration_test.go
@@ -1,7 +1,8 @@
-package main
+package wrapper

 import (
 	"bytes"
+	"codeagent-wrapper/internal/logger"
 	"fmt"
 	"io"
 	"os"
@@ -36,7 +37,9 @@ func captureStdout(t *testing.T, fn func()) string {
 	os.Stdout = old

 	var buf bytes.Buffer
-	io.Copy(&buf, r)
+	if _, err := io.Copy(&buf, r); err != nil {
+		t.Fatalf("io.Copy() error = %v", err)
+	}
 	return buf.String()
 }

@@ -57,11 +60,17 @@ func parseIntegrationOutput(t *testing.T, out string) integrationOutput {
 			for _, p := range parts {
 				p = strings.TrimSpace(p)
 				if strings.HasSuffix(p, "tasks") {
-					fmt.Sscanf(p, "%d tasks", &payload.Summary.Total)
+					if _, err := fmt.Sscanf(p, "%d tasks", &payload.Summary.Total); err != nil {
+						t.Fatalf("failed to parse total tasks from %q: %v", p, err)
+					}
 				} else if strings.HasSuffix(p, "passed") {
-					fmt.Sscanf(p, "%d passed", &payload.Summary.Success)
+					if _, err := fmt.Sscanf(p, "%d passed", &payload.Summary.Success); err != nil {
+						t.Fatalf("failed to parse passed tasks from %q: %v", p, err)
+					}
 				} else if strings.HasSuffix(p, "failed") {
-					fmt.Sscanf(p, "%d failed", &payload.Summary.Failed)
+					if _, err := fmt.Sscanf(p, "%d failed", &payload.Summary.Failed); err != nil {
+						t.Fatalf("failed to parse failed tasks from %q: %v", p, err)
+					}
 				}
 			}
 		} else if strings.HasPrefix(line, "Total:") {
@@ -70,11 +79,17 @@ func parseIntegrationOutput(t *testing.T, out string) integrationOutput {
 			for _, p := range parts {
 				p = strings.TrimSpace(p)
 				if strings.HasPrefix(p, "Total:") {
-					fmt.Sscanf(p, "Total: %d", &payload.Summary.Total)
+					if _, err := fmt.Sscanf(p, "Total: %d", &payload.Summary.Total); err != nil {
+						t.Fatalf("failed to parse total tasks from %q: %v", p, err)
+					}
 				} else if strings.HasPrefix(p, "Success:") {
-					fmt.Sscanf(p, "Success: %d", &payload.Summary.Success)
+					if _, err := fmt.Sscanf(p, "Success: %d", &payload.Summary.Success); err != nil {
+						t.Fatalf("failed to parse passed tasks from %q: %v", p, err)
+					}
 				} else if strings.HasPrefix(p, "Failed:") {
-					fmt.Sscanf(p, "Failed: %d", &payload.Summary.Failed)
+					if _, err := fmt.Sscanf(p, "Failed: %d", &payload.Summary.Failed); err != nil {
+						t.Fatalf("failed to parse failed tasks from %q: %v", p, err)
+					}
 				}
 			}
 		} else if line == "## Task Results" {
@@ -94,34 +109,39 @@ func parseIntegrationOutput(t *testing.T, out string) integrationOutput {
 			currentTask = &TaskResult{}

 			taskLine := strings.TrimPrefix(line, "### ")
-			success, warning, failed := getStatusSymbols()
-			// Parse different formats
-			if strings.Contains(taskLine, " "+success) {
-				parts := strings.Split(taskLine, " "+success)
+			parseMarker := func(marker string, exitCode int) bool {
+				needle := " " + marker
+				if !strings.Contains(taskLine, needle) {
+					return false
+				}
+				parts := strings.Split(taskLine, needle)
 				currentTask.TaskID = strings.TrimSpace(parts[0])
-				currentTask.ExitCode = 0
-				// Extract coverage if present
-				if len(parts) > 1 {
+				currentTask.ExitCode = exitCode
+				if exitCode == 0 && len(parts) > 1 {
 					coveragePart := strings.TrimSpace(parts[1])
 					if strings.HasSuffix(coveragePart, "%") {
 						currentTask.Coverage = coveragePart
 					}
 				}
-			} else if strings.Contains(taskLine, " "+warning) {
-				parts := strings.Split(taskLine, " "+warning)
-				currentTask.TaskID = strings.TrimSpace(parts[0])
-				currentTask.ExitCode = 0
-			} else if strings.Contains(taskLine, " "+failed) {
-				parts := strings.Split(taskLine, " "+failed)
-				currentTask.TaskID = strings.TrimSpace(parts[0])
-				currentTask.ExitCode = 1
-			} else {
+				return true
+			}
+
+			switch {
+			case parseMarker("✓", 0), parseMarker("PASS", 0):
+				// ok
+			case parseMarker("⚠️", 0), parseMarker("WARN", 0):
+				// warning
+			case parseMarker("✗", 1), parseMarker("FAIL", 1):
+				// fail
+			default:
 				currentTask.TaskID = taskLine
 			}
 		} else if currentTask != nil && inTaskResults {
 			// Parse task details
 			if strings.HasPrefix(line, "Exit code:") {
-				fmt.Sscanf(line, "Exit code: %d", &currentTask.ExitCode)
+				if _, err := fmt.Sscanf(line, "Exit code: %d", &currentTask.ExitCode); err != nil {
+					t.Fatalf("failed to parse exit code from %q: %v", line, err)
+				}
 			} else if strings.HasPrefix(line, "Error:") {
 				currentTask.Error = strings.TrimPrefix(line, "Error: ")
 			} else if strings.HasPrefix(line, "Log:") {
@@ -147,7 +167,9 @@ func parseIntegrationOutput(t *testing.T, out string) integrationOutput {
 				currentTask.ExitCode = 0
 			} else if strings.HasPrefix(line, "Status: FAILED") {
 				if strings.Contains(line, "exit code") {
-					fmt.Sscanf(line, "Status: FAILED (exit code %d)", &currentTask.ExitCode)
+					if _, err := fmt.Sscanf(line, "Status: FAILED (exit code %d)", &currentTask.ExitCode); err != nil {
+						t.Fatalf("failed to parse exit code from %q: %v", line, err)
+					}
 				} else {
 					currentTask.ExitCode = 1
 				}
@@ -169,32 +191,6 @@ func parseIntegrationOutput(t *testing.T, out string) integrationOutput {
 	return payload
 }

-func extractTaskBlock(t *testing.T, output, taskID string) string {
-	t.Helper()
-	header := fmt.Sprintf("--- Task: %s ---", taskID)
-	lines := strings.Split(output, "\n")
-	var block []string
-	collecting := false
-	for _, raw := range lines {
-		trimmed := strings.TrimSpace(raw)
-		if !collecting {
-			if trimmed == header {
-				collecting = true
-				block = append(block, trimmed)
-			}
-			continue
-		}
-		if strings.HasPrefix(trimmed, "--- Task: ") && trimmed != header {
-			break
-		}
-		block = append(block, trimmed)
-	}
-	if len(block) == 0 {
-		t.Fatalf("task block %s not found in output:\n%s", taskID, output)
-	}
-	return strings.Join(block, "\n")
-}
-
 func findResultByID(t *testing.T, payload integrationOutput, id string) TaskResult {
 	t.Helper()
 	for _, res := range payload.Results {
@@ -206,6 +202,37 @@ func findResultByID(t *testing.T, payload integrationOutput, id string) TaskResu
 	return TaskResult{}
 }

+func setTempDirEnv(t *testing.T, dir string) string {
+	t.Helper()
+	resolved := dir
+	if eval, err := filepath.EvalSymlinks(dir); err == nil {
+		resolved = eval
+	}
+	t.Setenv("TMPDIR", resolved)
+	t.Setenv("TEMP", resolved)
+	t.Setenv("TMP", resolved)
+	return resolved
+}
+
+func createTempLog(t *testing.T, dir, name string) string {
+	t.Helper()
+	path := filepath.Join(dir, name)
+	if err := os.WriteFile(path, []byte("test"), 0o644); err != nil {
+		t.Fatalf("failed to create temp log %s: %v", path, err)
+	}
+	return path
+}
+
+func stubProcessRunning(t *testing.T, fn func(int) bool) {
+	t.Helper()
+	t.Cleanup(logger.SetProcessRunningCheck(fn))
+}
+
+func stubProcessStartTime(t *testing.T, fn func(int) time.Time) {
+	t.Helper()
+	t.Cleanup(logger.SetProcessStartTimeFn(fn))
+}
+
 func TestRunParallelEndToEnd_OrderAndConcurrency(t *testing.T) {
 	defer resetTestHooks()
 	origRun := runCodexTaskFn
@@ -391,7 +418,7 @@ id: beta
 ---CONTENT---
 task-beta`
 	stdinReader = bytes.NewReader([]byte(input))
-	os.Args = []string{"codex-wrapper", "--parallel"}
+	os.Args = []string{"codeagent-wrapper", "--parallel"}

 	var exitCode int
 	output := captureStdout(t, func() {
@@ -444,9 +471,9 @@ id: d
 ---CONTENT---
 ok-d`
 	stdinReader = bytes.NewReader([]byte(input))
-	os.Args = []string{"codex-wrapper", "--parallel"}
+	os.Args = []string{"codeagent-wrapper", "--parallel"}

-	expectedLog := filepath.Join(tempDir, fmt.Sprintf("codex-wrapper-%d.log", os.Getpid()))
+	expectedLog := filepath.Join(tempDir, fmt.Sprintf("codeagent-wrapper-%d.log", os.Getpid()))

 	origRun := runCodexTaskFn
 	runCodexTaskFn = func(task TaskSpec, timeout int) TaskResult {
@@ -500,9 +527,9 @@ ok-d`

 	// After parallel log isolation fix, each task has its own log file
 	expectedLines := map[string]struct{}{
-		fmt.Sprintf("Task a: Log: %s", filepath.Join(tempDir, fmt.Sprintf("codex-wrapper-%d-a.log", os.Getpid()))): {},
-		fmt.Sprintf("Task b: Log: %s", filepath.Join(tempDir, fmt.Sprintf("codex-wrapper-%d-b.log", os.Getpid()))): {},
-		fmt.Sprintf("Task d: Log: %s", filepath.Join(tempDir, fmt.Sprintf("codex-wrapper-%d-d.log", os.Getpid()))): {},
+		fmt.Sprintf("Task a: Log: %s", filepath.Join(tempDir, fmt.Sprintf("codeagent-wrapper-%d-a.log", os.Getpid()))): {},
+		fmt.Sprintf("Task b: Log: %s", filepath.Join(tempDir, fmt.Sprintf("codeagent-wrapper-%d-b.log", os.Getpid()))): {},
+		fmt.Sprintf("Task d: Log: %s", filepath.Join(tempDir, fmt.Sprintf("codeagent-wrapper-%d-d.log", os.Getpid()))): {},
 	}

 	if len(taskLines) != len(expectedLines) {
@@ -520,7 +547,7 @@ func TestRunNonParallelOutputsIncludeLogPathsIntegration(t *testing.T) {
 	defer resetTestHooks()

 	tempDir := setTempDirEnv(t, t.TempDir())
-	os.Args = []string{"codex-wrapper", "integration-log-check"}
+	os.Args = []string{"codeagent-wrapper", "integration-log-check"}
 	stdinReader = strings.NewReader("")
 	isTerminalFn = func() bool { return true }
 	codexCommand = "echo"
@@ -538,7 +565,7 @@ func TestRunNonParallelOutputsIncludeLogPathsIntegration(t *testing.T) {
 	if exitCode != 0 {
 		t.Fatalf("run() exit=%d, want 0", exitCode)
 	}
-	expectedLog := filepath.Join(tempDir, fmt.Sprintf("codex-wrapper-%d.log", os.Getpid()))
+	expectedLog := filepath.Join(tempDir, fmt.Sprintf("codeagent-wrapper-%d.log", os.Getpid()))
 	wantLine := fmt.Sprintf("Log: %s", expectedLog)
 	if !strings.Contains(stderr, wantLine) {
 		t.Fatalf("stderr missing %q, got: %q", wantLine, stderr)
@@ -641,7 +668,6 @@ func TestRunParallelTimeoutPropagation(t *testing.T) {
 	t.Cleanup(func() {
 		runCodexTaskFn = origRun
 		resetTestHooks()
-		os.Unsetenv("CODEX_TIMEOUT")
 	})

 	var receivedTimeout int
@@ -650,7 +676,7 @@ func TestRunParallelTimeoutPropagation(t *testing.T) {
 		return TaskResult{TaskID: task.ID, ExitCode: 124, Error: "timeout"}
 	}

-	os.Setenv("CODEX_TIMEOUT", "1")
+	t.Setenv("CODEX_TIMEOUT", "1")
 	input := `---TASK---
 id: T
 ---CONTENT---
@@ -720,11 +746,11 @@ func TestRunStartupCleanupRemovesOrphansEndToEnd(t *testing.T) {

 	tempDir := setTempDirEnv(t, t.TempDir())

-	orphanA := createTempLog(t, tempDir, "codex-wrapper-5001.log")
-	orphanB := createTempLog(t, tempDir, "codex-wrapper-5002-extra.log")
-	orphanC := createTempLog(t, tempDir, "codex-wrapper-5003-suffix.log")
+	orphanA := createTempLog(t, tempDir, "codeagent-wrapper-5001.log")
+	orphanB := createTempLog(t, tempDir, "codeagent-wrapper-5002-extra.log")
+	orphanC := createTempLog(t, tempDir, "codeagent-wrapper-5003-suffix.log")
 	runningPID := 81234
-	runningLog := createTempLog(t, tempDir, fmt.Sprintf("codex-wrapper-%d.log", runningPID))
+	runningLog := createTempLog(t, tempDir, fmt.Sprintf("codeagent-wrapper-%d.log", runningPID))
 	unrelated := createTempLog(t, tempDir, "wrapper.log")

 	stubProcessRunning(t, func(pid int) bool {
@@ -740,7 +766,7 @@ func TestRunStartupCleanupRemovesOrphansEndToEnd(t *testing.T) {
 	codexCommand = createFakeCodexScript(t, "tid-startup", "ok")
 	stdinReader = strings.NewReader("")
 	isTerminalFn = func() bool { return true }
-	os.Args = []string{"codex-wrapper", "task"}
+	os.Args = []string{"codeagent-wrapper", "task"}

 	if exit := run(); exit != 0 {
 		t.Fatalf("run() exit=%d, want 0", exit)
@@ -766,7 +792,7 @@ func TestRunStartupCleanupConcurrentWrappers(t *testing.T) {

 	const totalLogs = 40
 	for i := 0; i < totalLogs; i++ {
-		createTempLog(t, tempDir, fmt.Sprintf("codex-wrapper-%d.log", 9000+i))
+		createTempLog(t, tempDir, fmt.Sprintf("codeagent-wrapper-%d.log", 9000+i))
 	}

 	stubProcessRunning(t, func(pid int) bool {
@@ -790,7 +816,7 @@ func TestRunStartupCleanupConcurrentWrappers(t *testing.T) {
 	close(start)
 	wg.Wait()

-	matches, err := filepath.Glob(filepath.Join(tempDir, "codex-wrapper-*.log"))
+	matches, err := filepath.Glob(filepath.Join(tempDir, "codeagent-wrapper-*.log"))
 	if err != nil {
 		t.Fatalf("glob error: %v", err)
 	}
@@ -804,9 +830,9 @@ func TestRunCleanupFlagEndToEnd_Success(t *testing.T) {

 	tempDir := setTempDirEnv(t, t.TempDir())

-	staleA := createTempLog(t, tempDir, "codex-wrapper-2100.log")
-	staleB := createTempLog(t, tempDir, "codex-wrapper-2200-extra.log")
-	keeper := createTempLog(t, tempDir, "codex-wrapper-2300.log")
+	staleA := createTempLog(t, tempDir, "codeagent-wrapper-2100.log")
+	staleB := createTempLog(t, tempDir, "codeagent-wrapper-2200-extra.log")
+	keeper := createTempLog(t, tempDir, "codeagent-wrapper-2300.log")

 	stubProcessRunning(t, func(pid int) bool {
 		return pid == 2300 || pid == os.Getpid()
@@ -818,7 +844,7 @@ func TestRunCleanupFlagEndToEnd_Success(t *testing.T) {
 		return time.Time{}
 	})

-	os.Args = []string{"codex-wrapper", "--cleanup"}
+	os.Args = []string{"codeagent-wrapper", "--cleanup"}

 	var exitCode int
 	output := captureStdout(t, func() {
@@ -842,10 +868,10 @@ func TestRunCleanupFlagEndToEnd_Success(t *testing.T) {
 	if !strings.Contains(output, "Files kept: 1") {
 		t.Fatalf("missing 'Files kept: 1' in output: %q", output)
 	}
-	if !strings.Contains(output, "codex-wrapper-2100.log") || !strings.Contains(output, "codex-wrapper-2200-extra.log") {
+	if !strings.Contains(output, "codeagent-wrapper-2100.log") || !strings.Contains(output, "codeagent-wrapper-2200-extra.log") {
 		t.Fatalf("missing deleted file names in output: %q", output)
 	}
-	if !strings.Contains(output, "codex-wrapper-2300.log") {
+	if !strings.Contains(output, "codeagent-wrapper-2300.log") {
 		t.Fatalf("missing kept file names in output: %q", output)
 	}

@@ -858,7 +884,7 @@ func TestRunCleanupFlagEndToEnd_Success(t *testing.T) {
 		t.Fatalf("expected kept log to remain, err=%v", err)
 	}

-	currentLog := filepath.Join(tempDir, fmt.Sprintf("codex-wrapper-%d.log", os.Getpid()))
+	currentLog := filepath.Join(tempDir, fmt.Sprintf("codeagent-wrapper-%d.log", os.Getpid()))
 	if _, err := os.Stat(currentLog); err == nil {
 		t.Fatalf("cleanup mode should not create new log file %s", currentLog)
 	} else if !os.IsNotExist(err) {
@@ -877,7 +903,7 @@ func TestRunCleanupFlagEndToEnd_FailureDoesNotAffectStartup(t *testing.T) {
 		return CleanupStats{Scanned: 1}, fmt.Errorf("permission denied")
 	}

-	os.Args = []string{"codex-wrapper", "--cleanup"}
+	os.Args = []string{"codeagent-wrapper", "--cleanup"}

 	var exitCode int
 	errOutput := captureStderr(t, func() {
@@ -894,7 +920,7 @@ func TestRunCleanupFlagEndToEnd_FailureDoesNotAffectStartup(t *testing.T) {
 		t.Fatalf("cleanup called %d times, want 1", calls)
 	}

-	currentLog := filepath.Join(tempDir, fmt.Sprintf("codex-wrapper-%d.log", os.Getpid()))
+	currentLog := filepath.Join(tempDir, fmt.Sprintf("codeagent-wrapper-%d.log", os.Getpid()))
 	if _, err := os.Stat(currentLog); err == nil {
 		t.Fatalf("cleanup failure should not create new log file %s", currentLog)
 	} else if !os.IsNotExist(err) {
@@ -907,7 +933,7 @@ func TestRunCleanupFlagEndToEnd_FailureDoesNotAffectStartup(t *testing.T) {
 	codexCommand = createFakeCodexScript(t, "tid-cleanup-e2e", "ok")
 	stdinReader = strings.NewReader("")
 	isTerminalFn = func() bool { return true }
-	os.Args = []string{"codex-wrapper", "post-cleanup task"}
+	os.Args = []string{"codeagent-wrapper", "post-cleanup task"}

 	var normalExit int
 	normalOutput := captureStdout(t, func() {
--- a/codeagent-wrapper/internal/app/main_test.go
+++ b/codeagent-wrapper/internal/app/main_test.go
--- a/codeagent-wrapper/internal/app/parallel_config.go
+++ b/codeagent-wrapper/internal/app/parallel_config.go
@@ -0,0 +1,9 @@
+package wrapper
+
+import (
+	executor "codeagent-wrapper/internal/executor"
+)
+
+func parseParallelConfig(data []byte) (*ParallelConfig, error) {
+	return executor.ParseParallelConfig(data)
+}
--- a/codeagent-wrapper/internal/app/parser.go
+++ b/codeagent-wrapper/internal/app/parser.go
@@ -0,0 +1,34 @@
+package wrapper
+
+import (
+	"bufio"
+	"io"
+
+	parser "codeagent-wrapper/internal/parser"
+
+	"github.com/goccy/go-json"
+)
+
+func parseJSONStream(r io.Reader) (message, threadID string) {
+	return parseJSONStreamWithLog(r, logWarn, logInfo)
+}
+
+func parseJSONStreamWithWarn(r io.Reader, warnFn func(string)) (message, threadID string) {
+	return parseJSONStreamWithLog(r, warnFn, logInfo)
+}
+
+func parseJSONStreamWithLog(r io.Reader, warnFn func(string), infoFn func(string)) (message, threadID string) {
+	return parseJSONStreamInternal(r, warnFn, infoFn, nil, nil)
+}
+
+func parseJSONStreamInternal(r io.Reader, warnFn func(string), infoFn func(string), onMessage func(), onComplete func()) (message, threadID string) {
+	return parser.ParseJSONStreamInternal(r, warnFn, infoFn, onMessage, onComplete)
+}
+
+func hasKey(m map[string]json.RawMessage, key string) bool { return parser.HasKey(m, key) }
+
+func discardInvalidJSON(decoder *json.Decoder, reader *bufio.Reader) (*bufio.Reader, error) {
+	return parser.DiscardInvalidJSON(decoder, reader)
+}
+
+func normalizeText(text interface{}) string { return parser.NormalizeText(text) }
--- a/codeagent-wrapper/internal/app/task_types.go
+++ b/codeagent-wrapper/internal/app/task_types.go
@@ -0,0 +1,8 @@
+package wrapper
+
+import executor "codeagent-wrapper/internal/executor"
+
+// Type aliases to keep existing names in the wrapper package.
+type ParallelConfig = executor.ParallelConfig
+type TaskSpec = executor.TaskSpec
+type TaskResult = executor.TaskResult
--- a/codeagent-wrapper/internal/app/terminal_test.go
+++ b/codeagent-wrapper/internal/app/terminal_test.go
@@ -0,0 +1,30 @@
+package wrapper
+
+import (
+	"os"
+	"testing"
+)
+
+func TestDefaultIsTerminalCoverage(t *testing.T) {
+	oldStdin := os.Stdin
+	t.Cleanup(func() { os.Stdin = oldStdin })
+
+	f, err := os.CreateTemp(t.TempDir(), "stdin-*")
+	if err != nil {
+		t.Fatalf("os.CreateTemp() error = %v", err)
+	}
+	defer os.Remove(f.Name())
+
+	os.Stdin = f
+	if got := defaultIsTerminal(); got {
+		t.Fatalf("defaultIsTerminal() = %v, want false for regular file", got)
+	}
+
+	if err := f.Close(); err != nil {
+		t.Fatalf("Close() error = %v", err)
+	}
+	os.Stdin = f
+	if got := defaultIsTerminal(); !got {
+		t.Fatalf("defaultIsTerminal() = %v, want true when Stat fails", got)
+	}
+}
--- a/codeagent-wrapper/internal/app/utils.go
+++ b/codeagent-wrapper/internal/app/utils.go
@@ -1,4 +1,4 @@
-package main
+package wrapper

 import (
 	"bytes"
@@ -7,6 +7,8 @@ import (
 	"os"
 	"strconv"
 	"strings"
+
+	utils "codeagent-wrapper/internal/utils"
 )

 func resolveTimeout() int {
@@ -52,7 +54,7 @@ func shouldUseStdin(taskText string, piped bool) bool {
 	if len(taskText) > 800 {
 		return true
 	}
-	return strings.IndexAny(taskText, stdinSpecialChars) >= 0
+	return strings.ContainsAny(taskText, stdinSpecialChars)
 }

 func defaultIsTerminal() bool {
@@ -196,69 +198,21 @@ func (b *tailBuffer) String() string {
 }

 func truncate(s string, maxLen int) string {
-	if len(s) <= maxLen {
-		return s
-	}
-	if maxLen < 0 {
-		return ""
-	}
-	return s[:maxLen] + "..."
+	return utils.Truncate(s, maxLen)
 }

 // safeTruncate safely truncates string to maxLen, avoiding panic and UTF-8 corruption.
 func safeTruncate(s string, maxLen int) string {
-	if maxLen <= 0 || s == "" {
-		return ""
-	}
-
-	runes := []rune(s)
-	if len(runes) <= maxLen {
-		return s
-	}
-
-	if maxLen < 4 {
-		return string(runes[:1])
-	}
-
-	cutoff := maxLen - 3
-	if cutoff <= 0 {
-		return string(runes[:1])
-	}
-	if len(runes) <= cutoff {
-		return s
-	}
-	return string(runes[:cutoff]) + "..."
+	return utils.SafeTruncate(s, maxLen)
 }

 // sanitizeOutput removes ANSI escape sequences and control characters.
 func sanitizeOutput(s string) string {
-	var result strings.Builder
-	inEscape := false
-	for i := 0; i < len(s); i++ {
-		if s[i] == '\x1b' && i+1 < len(s) && s[i+1] == '[' {
-			inEscape = true
-			i++ // skip '['
-			continue
-		}
-		if inEscape {
-			if (s[i] >= 'A' && s[i] <= 'Z') || (s[i] >= 'a' && s[i] <= 'z') {
-				inEscape = false
-			}
-			continue
-		}
-		// Keep printable chars and common whitespace.
-		if s[i] >= 32 || s[i] == '\n' || s[i] == '\t' {
-			result.WriteByte(s[i])
-		}
-	}
-	return result.String()
+	return utils.SanitizeOutput(s)
 }

 func min(a, b int) int {
-	if a < b {
-		return a
-	}
-	return b
+	return utils.Min(a, b)
 }

 func hello() string {
@@ -273,30 +227,6 @@ func farewell(name string) string {
 	return "goodbye " + name
 }

-// extractMessageSummary extracts a brief summary from task output
-// Returns first meaningful line or truncated content up to maxLen chars
-func extractMessageSummary(message string, maxLen int) string {
-	if message == "" || maxLen <= 0 {
-		return ""
-	}
-
-	// Try to find a meaningful summary line
-	lines := strings.Split(message, "\n")
-	for _, line := range lines {
-		line = strings.TrimSpace(line)
-		// Skip empty lines and common noise
-		if line == "" || strings.HasPrefix(line, "```") || strings.HasPrefix(line, "---") {
-			continue
-		}
-		// Found a meaningful line
-		return safeTruncate(line, maxLen)
-	}
-
-	// Fallback: truncate entire message
-	clean := strings.TrimSpace(message)
-	return safeTruncate(clean, maxLen)
-}
-
 // extractCoverageFromLines extracts coverage from pre-split lines.
 func extractCoverageFromLines(lines []string) string {
 	if len(lines) == 0 {
@@ -405,7 +335,7 @@ func extractFilesChangedFromLines(lines []string) []string {
 		for _, prefix := range []string{"Modified:", "Created:", "Updated:", "Edited:", "Wrote:", "Changed:"} {
 			if strings.HasPrefix(line, prefix) {
 				file := strings.TrimSpace(strings.TrimPrefix(line, prefix))
-				file = strings.Trim(file, "`,\"'()[],:")
+				file = strings.Trim(file, "`\"'()[],:")
 				file = strings.TrimPrefix(file, "@")
 				if file != "" && !seen[file] {
 					files = append(files, file)
@@ -422,7 +352,7 @@ func extractFilesChangedFromLines(lines []string) []string {
 		// Pattern 2: Tokens that look like file paths (allow root files, strip @ prefix).
 		parts := strings.Fields(line)
 		for _, part := range parts {
-			part = strings.Trim(part, "`,\"'()[],:")
+			part = strings.Trim(part, "`\"'()[],:")
 			part = strings.TrimPrefix(part, "@")
 			for _, ext := range exts {
 				if strings.HasSuffix(part, ext) && !seen[part] {
@@ -591,125 +521,3 @@ func extractKeyOutputFromLines(lines []string, maxLen int) string {
 	clean := strings.TrimSpace(strings.Join(lines, "\n"))
 	return safeTruncate(clean, maxLen)
 }
-
-// extractKeyOutput extracts a brief summary of what the task accomplished
-// Looks for summary lines, first meaningful sentence, or truncates message
-func extractKeyOutput(message string, maxLen int) string {
-	if message == "" || maxLen <= 0 {
-		return ""
-	}
-	return extractKeyOutputFromLines(strings.Split(message, "\n"), maxLen)
-}
-
-// extractCoverageGap extracts what's missing from coverage reports
-// Looks for uncovered lines, branches, or functions
-func extractCoverageGap(message string) string {
-	if message == "" {
-		return ""
-	}
-
-	lower := strings.ToLower(message)
-	lines := strings.Split(message, "\n")
-
-	// Look for uncovered/missing patterns
-	for _, line := range lines {
-		lineLower := strings.ToLower(line)
-		line = strings.TrimSpace(line)
-
-		// Common patterns for uncovered code
-		if strings.Contains(lineLower, "uncovered") ||
-			strings.Contains(lineLower, "not covered") ||
-			strings.Contains(lineLower, "missing coverage") ||
-			strings.Contains(lineLower, "lines not covered") {
-			if len(line) > 100 {
-				return line[:97] + "..."
-			}
-			return line
-		}
-
-		// Look for specific file:line patterns in coverage reports
-		if strings.Contains(lineLower, "branch") && strings.Contains(lineLower, "not taken") {
-			if len(line) > 100 {
-				return line[:97] + "..."
-			}
-			return line
-		}
-	}
-
-	// Look for function names that aren't covered
-	if strings.Contains(lower, "function") && strings.Contains(lower, "0%") {
-		for _, line := range lines {
-			if strings.Contains(strings.ToLower(line), "0%") && strings.Contains(line, "function") {
-				line = strings.TrimSpace(line)
-				if len(line) > 100 {
-					return line[:97] + "..."
-				}
-				return line
-			}
-		}
-	}
-
-	return ""
-}
-
-// extractErrorDetail extracts meaningful error context from task output
-// Returns the most relevant error information up to maxLen characters
-func extractErrorDetail(message string, maxLen int) string {
-	if message == "" || maxLen <= 0 {
-		return ""
-	}
-
-	lines := strings.Split(message, "\n")
-	var errorLines []string
-
-	// Look for error-related lines
-	for _, line := range lines {
-		line = strings.TrimSpace(line)
-		if line == "" {
-			continue
-		}
-
-		lower := strings.ToLower(line)
-
-		// Skip noise lines
-		if strings.HasPrefix(line, "at ") && strings.Contains(line, "(") {
-			// Stack trace line - only keep first one
-			if len(errorLines) > 0 && strings.HasPrefix(strings.ToLower(errorLines[len(errorLines)-1]), "at ") {
-				continue
-			}
-		}
-
-		// Prioritize error/fail lines
-		if strings.Contains(lower, "error") ||
-			strings.Contains(lower, "fail") ||
-			strings.Contains(lower, "exception") ||
-			strings.Contains(lower, "assert") ||
-			strings.Contains(lower, "expected") ||
-			strings.Contains(lower, "timeout") ||
-			strings.Contains(lower, "not found") ||
-			strings.Contains(lower, "cannot") ||
-			strings.Contains(lower, "undefined") ||
-			strings.HasPrefix(line, "FAIL") ||
-			strings.HasPrefix(line, "●") {
-			errorLines = append(errorLines, line)
-		}
-	}
-
-	if len(errorLines) == 0 {
-		// No specific error lines found, take last few lines
-		start := len(lines) - 5
-		if start < 0 {
-			start = 0
-		}
-		for _, line := range lines[start:] {
-			line = strings.TrimSpace(line)
-			if line != "" {
-				errorLines = append(errorLines, line)
-			}
-		}
-	}
-
-	// Join and truncate
-	result := strings.Join(errorLines, " | ")
-	return safeTruncate(result, maxLen)
-}
--- a/codeagent-wrapper/internal/app/utils_test.go
+++ b/codeagent-wrapper/internal/app/utils_test.go
@@ -1,4 +1,4 @@
-package main
+package wrapper

 import (
 	"fmt"
--- a/codeagent-wrapper/internal/app/wrapper_name.go
+++ b/codeagent-wrapper/internal/app/wrapper_name.go
@@ -0,0 +1,9 @@
+package wrapper
+
+import ilogger "codeagent-wrapper/internal/logger"
+
+const wrapperName = ilogger.WrapperName
+
+func currentWrapperName() string { return ilogger.CurrentWrapperName() }
+
+func primaryLogPrefix() string { return ilogger.PrimaryLogPrefix() }
--- a/codeagent-wrapper/internal/backend/backend.go
+++ b/codeagent-wrapper/internal/backend/backend.go
@@ -0,0 +1,33 @@
+package backend
+
+import config "codeagent-wrapper/internal/config"
+
+// Backend defines the contract for invoking different AI CLI backends.
+// Each backend is responsible for supplying the executable command and
+// building the argument list based on the wrapper config.
+type Backend interface {
+	Name() string
+	BuildArgs(cfg *config.Config, targetArg string) []string
+	Command() string
+	Env(baseURL, apiKey string) map[string]string
+}
+
+var (
+	logWarnFn  = func(string) {}
+	logErrorFn = func(string) {}
+)
+
+// SetLogFuncs configures optional logging hooks used by some backends.
+// Callers can safely pass nil to disable the hook.
+func SetLogFuncs(warnFn, errorFn func(string)) {
+	if warnFn != nil {
+		logWarnFn = warnFn
+	} else {
+		logWarnFn = func(string) {}
+	}
+	if errorFn != nil {
+		logErrorFn = errorFn
+	} else {
+		logErrorFn = func(string) {}
+	}
+}
--- a/codeagent-wrapper/internal/backend/backend_test.go
+++ b/codeagent-wrapper/internal/backend/backend_test.go
@@ -1,4 +1,4 @@
-package main
+package backend

 import (
 	"bytes"
@@ -6,13 +6,16 @@ import (
 	"path/filepath"
 	"reflect"
 	"testing"
+
+	config "codeagent-wrapper/internal/config"
 )

 func TestClaudeBuildArgs_ModesAndPermissions(t *testing.T) {
 	backend := ClaudeBackend{}

-	t.Run("new mode omits skip-permissions by default", func(t *testing.T) {
-		cfg := &Config{Mode: "new", WorkDir: "/repo"}
+	t.Run("new mode omits skip-permissions when env disabled", func(t *testing.T) {
+		t.Setenv("CODEAGENT_SKIP_PERMISSIONS", "false")
+		cfg := &config.Config{Mode: "new", WorkDir: "/repo"}
 		got := backend.BuildArgs(cfg, "todo")
 		want := []string{"-p", "--setting-sources", "", "--output-format", "stream-json", "--verbose", "todo"}
 		if !reflect.DeepEqual(got, want) {
@@ -20,8 +23,8 @@ func TestClaudeBuildArgs_ModesAndPermissions(t *testing.T) {
 		}
 	})

-	t.Run("new mode can opt-in skip-permissions", func(t *testing.T) {
-		cfg := &Config{Mode: "new", SkipPermissions: true}
+	t.Run("new mode includes skip-permissions by default", func(t *testing.T) {
+		cfg := &config.Config{Mode: "new", SkipPermissions: false}
 		got := backend.BuildArgs(cfg, "-")
 		want := []string{"-p", "--dangerously-skip-permissions", "--setting-sources", "", "--output-format", "stream-json", "--verbose", "-"}
 		if !reflect.DeepEqual(got, want) {
@@ -30,7 +33,8 @@ func TestClaudeBuildArgs_ModesAndPermissions(t *testing.T) {
 	})

 	t.Run("resume mode includes session id", func(t *testing.T) {
-		cfg := &Config{Mode: "resume", SessionID: "sid-123", WorkDir: "/ignored"}
+		t.Setenv("CODEAGENT_SKIP_PERMISSIONS", "false")
+		cfg := &config.Config{Mode: "resume", SessionID: "sid-123", WorkDir: "/ignored"}
 		got := backend.BuildArgs(cfg, "resume-task")
 		want := []string{"-p", "--setting-sources", "", "-r", "sid-123", "--output-format", "stream-json", "--verbose", "resume-task"}
 		if !reflect.DeepEqual(got, want) {
@@ -39,7 +43,8 @@ func TestClaudeBuildArgs_ModesAndPermissions(t *testing.T) {
 	})

 	t.Run("resume mode without session still returns base flags", func(t *testing.T) {
-		cfg := &Config{Mode: "resume", WorkDir: "/ignored"}
+		t.Setenv("CODEAGENT_SKIP_PERMISSIONS", "false")
+		cfg := &config.Config{Mode: "resume", WorkDir: "/ignored"}
 		got := backend.BuildArgs(cfg, "follow-up")
 		want := []string{"-p", "--setting-sources", "", "--output-format", "stream-json", "--verbose", "follow-up"}
 		if !reflect.DeepEqual(got, want) {
@@ -48,7 +53,7 @@ func TestClaudeBuildArgs_ModesAndPermissions(t *testing.T) {
 	})

 	t.Run("resume mode can opt-in skip permissions", func(t *testing.T) {
-		cfg := &Config{Mode: "resume", SessionID: "sid-123", SkipPermissions: true}
+		cfg := &config.Config{Mode: "resume", SessionID: "sid-123", SkipPermissions: true}
 		got := backend.BuildArgs(cfg, "resume-task")
 		want := []string{"-p", "--dangerously-skip-permissions", "--setting-sources", "", "-r", "sid-123", "--output-format", "stream-json", "--verbose", "resume-task"}
 		if !reflect.DeepEqual(got, want) {
@@ -63,12 +68,48 @@ func TestClaudeBuildArgs_ModesAndPermissions(t *testing.T) {
 	})
 }

+func TestBackendBuildArgs_Model(t *testing.T) {
+	t.Run("claude includes --model when set", func(t *testing.T) {
+		t.Setenv("CODEAGENT_SKIP_PERMISSIONS", "false")
+		backend := ClaudeBackend{}
+		cfg := &config.Config{Mode: "new", Model: "opus"}
+		got := backend.BuildArgs(cfg, "todo")
+		want := []string{"-p", "--setting-sources", "", "--model", "opus", "--output-format", "stream-json", "--verbose", "todo"}
+		if !reflect.DeepEqual(got, want) {
+			t.Fatalf("got %v, want %v", got, want)
+		}
+	})
+
+	t.Run("gemini includes -m when set", func(t *testing.T) {
+		backend := GeminiBackend{}
+		cfg := &config.Config{Mode: "new", Model: "gemini-3-pro-preview"}
+		got := backend.BuildArgs(cfg, "task")
+		want := []string{"-o", "stream-json", "-y", "-m", "gemini-3-pro-preview", "task"}
+		if !reflect.DeepEqual(got, want) {
+			t.Fatalf("got %v, want %v", got, want)
+		}
+	})
+
+	t.Run("codex includes --model when set", func(t *testing.T) {
+		const key = "CODEX_BYPASS_SANDBOX"
+		t.Setenv(key, "false")
+
+		backend := CodexBackend{}
+		cfg := &config.Config{Mode: "new", WorkDir: "/tmp", Model: "o3"}
+		got := backend.BuildArgs(cfg, "task")
+		want := []string{"e", "--model", "o3", "--skip-git-repo-check", "-C", "/tmp", "--json", "task"}
+		if !reflect.DeepEqual(got, want) {
+			t.Fatalf("got %v, want %v", got, want)
+		}
+	})
+}
+
 func TestClaudeBuildArgs_GeminiAndCodexModes(t *testing.T) {
 	t.Run("gemini new mode defaults workdir", func(t *testing.T) {
 		backend := GeminiBackend{}
-		cfg := &Config{Mode: "new", WorkDir: "/workspace"}
+		cfg := &config.Config{Mode: "new", WorkDir: "/workspace"}
 		got := backend.BuildArgs(cfg, "task")
-		want := []string{"-o", "stream-json", "-y", "-p", "task"}
+		want := []string{"-o", "stream-json", "-y", "task"}
 		if !reflect.DeepEqual(got, want) {
 			t.Fatalf("got %v, want %v", got, want)
 		}
@@ -76,9 +117,9 @@ func TestClaudeBuildArgs_GeminiAndCodexModes(t *testing.T) {

 	t.Run("gemini resume mode uses session id", func(t *testing.T) {
 		backend := GeminiBackend{}
-		cfg := &Config{Mode: "resume", SessionID: "sid-999"}
+		cfg := &config.Config{Mode: "resume", SessionID: "sid-999"}
 		got := backend.BuildArgs(cfg, "resume")
-		want := []string{"-o", "stream-json", "-y", "-r", "sid-999", "-p", "resume"}
+		want := []string{"-o", "stream-json", "-y", "-r", "sid-999", "resume"}
 		if !reflect.DeepEqual(got, want) {
 			t.Fatalf("got %v, want %v", got, want)
 		}
@@ -86,9 +127,9 @@ func TestClaudeBuildArgs_GeminiAndCodexModes(t *testing.T) {

 	t.Run("gemini resume mode without session omits identifier", func(t *testing.T) {
 		backend := GeminiBackend{}
-		cfg := &Config{Mode: "resume"}
+		cfg := &config.Config{Mode: "resume"}
 		got := backend.BuildArgs(cfg, "resume")
-		want := []string{"-o", "stream-json", "-y", "-p", "resume"}
+		want := []string{"-o", "stream-json", "-y", "resume"}
 		if !reflect.DeepEqual(got, want) {
 			t.Fatalf("got %v, want %v", got, want)
 		}
@@ -101,13 +142,22 @@ func TestClaudeBuildArgs_GeminiAndCodexModes(t *testing.T) {
 		}
 	})

+	t.Run("gemini stdin mode uses -p flag", func(t *testing.T) {
+		backend := GeminiBackend{}
+		cfg := &config.Config{Mode: "new"}
+		got := backend.BuildArgs(cfg, "-")
+		want := []string{"-o", "stream-json", "-y", "-p", "-"}
+		if !reflect.DeepEqual(got, want) {
+			t.Fatalf("got %v, want %v", got, want)
+		}
+	})
+
 	t.Run("codex build args omits bypass flag by default", func(t *testing.T) {
 		const key = "CODEX_BYPASS_SANDBOX"
-		t.Cleanup(func() { os.Unsetenv(key) })
-		os.Unsetenv(key)
+		t.Setenv(key, "false")

 		backend := CodexBackend{}
-		cfg := &Config{Mode: "new", WorkDir: "/tmp"}
+		cfg := &config.Config{Mode: "new", WorkDir: "/tmp"}
 		got := backend.BuildArgs(cfg, "task")
 		want := []string{"e", "--skip-git-repo-check", "-C", "/tmp", "--json", "task"}
 		if !reflect.DeepEqual(got, want) {
@@ -117,11 +167,10 @@ func TestClaudeBuildArgs_GeminiAndCodexModes(t *testing.T) {

 	t.Run("codex build args includes bypass flag when enabled", func(t *testing.T) {
 		const key = "CODEX_BYPASS_SANDBOX"
-		t.Cleanup(func() { os.Unsetenv(key) })
-		os.Setenv(key, "true")
+		t.Setenv(key, "true")

 		backend := CodexBackend{}
-		cfg := &Config{Mode: "new", WorkDir: "/tmp"}
+		cfg := &config.Config{Mode: "new", WorkDir: "/tmp"}
 		got := backend.BuildArgs(cfg, "task")
 		want := []string{"e", "--dangerously-bypass-approvals-and-sandbox", "--skip-git-repo-check", "-C", "/tmp", "--json", "task"}
 		if !reflect.DeepEqual(got, want) {
@@ -157,7 +206,7 @@ func TestLoadMinimalEnvSettings(t *testing.T) {
 	t.Setenv("USERPROFILE", home)

 	t.Run("missing file returns empty", func(t *testing.T) {
-		if got := loadMinimalEnvSettings(); len(got) != 0 {
+		if got := LoadMinimalEnvSettings(); len(got) != 0 {
 			t.Fatalf("got %v, want empty", got)
 		}
 	})
@@ -173,7 +222,7 @@ func TestLoadMinimalEnvSettings(t *testing.T) {
 			t.Fatalf("WriteFile: %v", err)
 		}

-		got := loadMinimalEnvSettings()
+		got := LoadMinimalEnvSettings()
 		if got["ANTHROPIC_API_KEY"] != "secret" || got["FOO"] != "bar" {
 			t.Fatalf("got %v, want keys present", got)
 		}
@@ -187,7 +236,7 @@ func TestLoadMinimalEnvSettings(t *testing.T) {
 			t.Fatalf("WriteFile: %v", err)
 		}

-		got := loadMinimalEnvSettings()
+		got := LoadMinimalEnvSettings()
 		if got["GOOD"] != "ok" {
 			t.Fatalf("got %v, want GOOD=ok", got)
 		}
@@ -202,12 +251,72 @@ func TestLoadMinimalEnvSettings(t *testing.T) {
 	t.Run("oversized file returns empty", func(t *testing.T) {
 		dir := filepath.Join(home, ".claude")
 		path := filepath.Join(dir, "settings.json")
-		data := bytes.Repeat([]byte("a"), maxClaudeSettingsBytes+1)
+		data := bytes.Repeat([]byte("a"), MaxClaudeSettingsBytes+1)
 		if err := os.WriteFile(path, data, 0o600); err != nil {
 			t.Fatalf("WriteFile: %v", err)
 		}
-		if got := loadMinimalEnvSettings(); len(got) != 0 {
+		if got := LoadMinimalEnvSettings(); len(got) != 0 {
 			t.Fatalf("got %v, want empty", got)
 		}
 	})
 }
+
+func TestOpencodeBackend_BuildArgs(t *testing.T) {
+	backend := OpencodeBackend{}
+
+	t.Run("basic", func(t *testing.T) {
+		cfg := &config.Config{Mode: "new"}
+		got := backend.BuildArgs(cfg, "hello")
+		want := []string{"run", "--format", "json", "hello"}
+		if !reflect.DeepEqual(got, want) {
+			t.Errorf("got %v, want %v", got, want)
+		}
+	})
+
+	t.Run("with model", func(t *testing.T) {
+		cfg := &config.Config{Mode: "new", Model: "opencode/grok-code"}
+		got := backend.BuildArgs(cfg, "task")
+		want := []string{"run", "-m", "opencode/grok-code", "--format", "json", "task"}
+		if !reflect.DeepEqual(got, want) {
+			t.Errorf("got %v, want %v", got, want)
+		}
+	})
+
+	t.Run("resume mode", func(t *testing.T) {
+		cfg := &config.Config{Mode: "resume", SessionID: "ses_123", Model: "opencode/grok-code"}
+		got := backend.BuildArgs(cfg, "follow-up")
+		want := []string{"run", "-m", "opencode/grok-code", "-s", "ses_123", "--format", "json", "follow-up"}
+		if !reflect.DeepEqual(got, want) {
+			t.Errorf("got %v, want %v", got, want)
+		}
+	})
+
+	t.Run("resume without session", func(t *testing.T) {
+		cfg := &config.Config{Mode: "resume"}
+		got := backend.BuildArgs(cfg, "task")
+		want := []string{"run", "--format", "json", "task"}
+		if !reflect.DeepEqual(got, want) {
+			t.Errorf("got %v, want %v", got, want)
+		}
+	})
+
+	t.Run("stdin mode omits dash", func(t *testing.T) {
+		cfg := &config.Config{Mode: "new"}
+		got := backend.BuildArgs(cfg, "-")
+		want := []string{"run", "--format", "json"}
+		if !reflect.DeepEqual(got, want) {
+			t.Errorf("got %v, want %v", got, want)
+		}
+	})
+}
+
+func TestOpencodeBackend_Interface(t *testing.T) {
+	backend := OpencodeBackend{}
+
+	if backend.Name() != "opencode" {
+		t.Errorf("Name() = %q, want %q", backend.Name(), "opencode")
+	}
+	if backend.Command() != "opencode" {
+		t.Errorf("Command() = %q, want %q", backend.Command(), "opencode")
+	}
+}
--- a/codeagent-wrapper/internal/backend/claude.go
+++ b/codeagent-wrapper/internal/backend/claude.go
@@ -0,0 +1,139 @@
+package backend
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+
+	config "codeagent-wrapper/internal/config"
+
+	"github.com/goccy/go-json"
+)
+
+type ClaudeBackend struct{}
+
+func (ClaudeBackend) Name() string    { return "claude" }
+func (ClaudeBackend) Command() string { return "claude" }
+func (ClaudeBackend) Env(baseURL, apiKey string) map[string]string {
+	baseURL = strings.TrimSpace(baseURL)
+	apiKey = strings.TrimSpace(apiKey)
+	if baseURL == "" && apiKey == "" {
+		return nil
+	}
+	env := make(map[string]string, 2)
+	if baseURL != "" {
+		env["ANTHROPIC_BASE_URL"] = baseURL
+	}
+	if apiKey != "" {
+		env["ANTHROPIC_AUTH_TOKEN"] = apiKey
+	}
+	return env
+}
+func (ClaudeBackend) BuildArgs(cfg *config.Config, targetArg string) []string {
+	return buildClaudeArgs(cfg, targetArg)
+}
+
+const MaxClaudeSettingsBytes = 1 << 20 // 1MB
+
+type MinimalClaudeSettings struct {
+	Env   map[string]string
+	Model string
+}
+
+// LoadMinimalClaudeSettings 从 ~/.claude/settings.json 只提取安全的最小子集：
+// - env: 只接受字符串类型的值
+// - model: 只接受字符串类型的值
+// 文件缺失/解析失败/超限都返回空。
+func LoadMinimalClaudeSettings() MinimalClaudeSettings {
+	home, err := os.UserHomeDir()
+	if err != nil || home == "" {
+		return MinimalClaudeSettings{}
+	}
+
+	claudeDir := filepath.Clean(filepath.Join(home, ".claude"))
+	settingPath := filepath.Clean(filepath.Join(claudeDir, "settings.json"))
+	rel, err := filepath.Rel(claudeDir, settingPath)
+	if err != nil || rel == ".." || strings.HasPrefix(rel, ".."+string(os.PathSeparator)) {
+		return MinimalClaudeSettings{}
+	}
+
+	info, err := os.Stat(settingPath)
+	if err != nil || info.Size() > MaxClaudeSettingsBytes {
+		return MinimalClaudeSettings{}
+	}
+
+	data, err := os.ReadFile(settingPath) // #nosec G304 -- path is fixed under user home and validated to stay within claudeDir
+	if err != nil {
+		return MinimalClaudeSettings{}
+	}
+
+	var cfg struct {
+		Env   map[string]any `json:"env"`
+		Model any            `json:"model"`
+	}
+	if err := json.Unmarshal(data, &cfg); err != nil {
+		return MinimalClaudeSettings{}
+	}
+
+	out := MinimalClaudeSettings{}
+
+	if model, ok := cfg.Model.(string); ok {
+		out.Model = strings.TrimSpace(model)
+	}
+
+	if len(cfg.Env) == 0 {
+		return out
+	}
+
+	env := make(map[string]string, len(cfg.Env))
+	for k, v := range cfg.Env {
+		s, ok := v.(string)
+		if !ok {
+			continue
+		}
+		env[k] = s
+	}
+	if len(env) == 0 {
+		return out
+	}
+	out.Env = env
+	return out
+}
+
+func LoadMinimalEnvSettings() map[string]string {
+	settings := LoadMinimalClaudeSettings()
+	if len(settings.Env) == 0 {
+		return nil
+	}
+	return settings.Env
+}
+
+func buildClaudeArgs(cfg *config.Config, targetArg string) []string {
+	if cfg == nil {
+		return nil
+	}
+	args := []string{"-p"}
+	// Default to skip permissions unless CODEAGENT_SKIP_PERMISSIONS=false
+	if cfg.SkipPermissions || cfg.Yolo || config.EnvFlagDefaultTrue("CODEAGENT_SKIP_PERMISSIONS") {
+		args = append(args, "--dangerously-skip-permissions")
+	}
+
+	// Prevent infinite recursion: disable all setting sources (user, project, local)
+	// This ensures a clean execution environment without CLAUDE.md or skills that would trigger codeagent
+	args = append(args, "--setting-sources", "")
+
+	if model := strings.TrimSpace(cfg.Model); model != "" {
+		args = append(args, "--model", model)
+	}
+
+	if cfg.Mode == "resume" {
+		if cfg.SessionID != "" {
+			// Claude CLI uses -r <session_id> for resume.
+			args = append(args, "-r", cfg.SessionID)
+		}
+	}
+
+	args = append(args, "--output-format", "stream-json", "--verbose", targetArg)
+
+	return args
+}
--- a/codeagent-wrapper/internal/backend/codex.go
+++ b/codeagent-wrapper/internal/backend/codex.go
@@ -0,0 +1,79 @@
+package backend
+
+import (
+	"strings"
+
+	config "codeagent-wrapper/internal/config"
+)
+
+type CodexBackend struct{}
+
+func (CodexBackend) Name() string    { return "codex" }
+func (CodexBackend) Command() string { return "codex" }
+func (CodexBackend) Env(baseURL, apiKey string) map[string]string {
+	baseURL = strings.TrimSpace(baseURL)
+	apiKey = strings.TrimSpace(apiKey)
+	if baseURL == "" && apiKey == "" {
+		return nil
+	}
+	env := make(map[string]string, 2)
+	if baseURL != "" {
+		env["OPENAI_BASE_URL"] = baseURL
+	}
+	if apiKey != "" {
+		env["OPENAI_API_KEY"] = apiKey
+	}
+	return env
+}
+func (CodexBackend) BuildArgs(cfg *config.Config, targetArg string) []string {
+	return BuildCodexArgs(cfg, targetArg)
+}
+
+func BuildCodexArgs(cfg *config.Config, targetArg string) []string {
+	if cfg == nil {
+		panic("buildCodexArgs: nil config")
+	}
+
+	var resumeSessionID string
+	isResume := cfg.Mode == "resume"
+	if isResume {
+		resumeSessionID = strings.TrimSpace(cfg.SessionID)
+		if resumeSessionID == "" {
+			logErrorFn("invalid config: resume mode requires non-empty session_id")
+			isResume = false
+		}
+	}
+
+	args := []string{"e"}
+
+	// Default to bypass sandbox unless CODEX_BYPASS_SANDBOX=false
+	if cfg.Yolo || config.EnvFlagDefaultTrue("CODEX_BYPASS_SANDBOX") {
+		logWarnFn("YOLO mode or CODEX_BYPASS_SANDBOX enabled: running without approval/sandbox protection")
+		args = append(args, "--dangerously-bypass-approvals-and-sandbox")
+	}
+
+	if model := strings.TrimSpace(cfg.Model); model != "" {
+		args = append(args, "--model", model)
+	}
+
+	if reasoningEffort := strings.TrimSpace(cfg.ReasoningEffort); reasoningEffort != "" {
+		args = append(args, "-c", "model_reasoning_effort="+reasoningEffort)
+	}
+
+	args = append(args, "--skip-git-repo-check")
+
+	if isResume {
+		return append(args,
+			"--json",
+			"resume",
+			resumeSessionID,
+			targetArg,
+		)
+	}
+
+	return append(args,
+		"-C", cfg.WorkDir,
+		"--json",
+		targetArg,
+	)
+}
--- a/codeagent-wrapper/internal/backend/gemini.go
+++ b/codeagent-wrapper/internal/backend/gemini.go
@@ -0,0 +1,110 @@
+package backend
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+
+	config "codeagent-wrapper/internal/config"
+)
+
+type GeminiBackend struct{}
+
+func (GeminiBackend) Name() string    { return "gemini" }
+func (GeminiBackend) Command() string { return "gemini" }
+func (GeminiBackend) Env(baseURL, apiKey string) map[string]string {
+	baseURL = strings.TrimSpace(baseURL)
+	apiKey = strings.TrimSpace(apiKey)
+	if baseURL == "" && apiKey == "" {
+		return nil
+	}
+	env := make(map[string]string, 2)
+	if baseURL != "" {
+		env["GOOGLE_GEMINI_BASE_URL"] = baseURL
+	}
+	if apiKey != "" {
+		env["GEMINI_API_KEY"] = apiKey
+	}
+	return env
+}
+func (GeminiBackend) BuildArgs(cfg *config.Config, targetArg string) []string {
+	return buildGeminiArgs(cfg, targetArg)
+}
+
+// LoadGeminiEnv loads environment variables from ~/.gemini/.env
+// Supports GEMINI_API_KEY, GEMINI_MODEL, GOOGLE_GEMINI_BASE_URL
+// Also sets GEMINI_API_KEY_AUTH_MECHANISM=bearer for third-party API compatibility
+func LoadGeminiEnv() map[string]string {
+	home, err := os.UserHomeDir()
+	if err != nil || home == "" {
+		return nil
+	}
+
+	envDir := filepath.Clean(filepath.Join(home, ".gemini"))
+	envPath := filepath.Clean(filepath.Join(envDir, ".env"))
+	rel, err := filepath.Rel(envDir, envPath)
+	if err != nil || rel == ".." || strings.HasPrefix(rel, ".."+string(os.PathSeparator)) {
+		return nil
+	}
+
+	data, err := os.ReadFile(envPath) // #nosec G304 -- path is fixed under user home and validated to stay within envDir
+	if err != nil {
+		return nil
+	}
+
+	env := make(map[string]string)
+	for _, line := range strings.Split(string(data), "\n") {
+		line = strings.TrimSpace(line)
+		if line == "" || strings.HasPrefix(line, "#") {
+			continue
+		}
+		idx := strings.IndexByte(line, '=')
+		if idx <= 0 {
+			continue
+		}
+		key := strings.TrimSpace(line[:idx])
+		value := strings.TrimSpace(line[idx+1:])
+		if key != "" && value != "" {
+			env[key] = value
+		}
+	}
+
+	// Set bearer auth mechanism for third-party API compatibility
+	if _, ok := env["GEMINI_API_KEY"]; ok {
+		if _, hasAuth := env["GEMINI_API_KEY_AUTH_MECHANISM"]; !hasAuth {
+			env["GEMINI_API_KEY_AUTH_MECHANISM"] = "bearer"
+		}
+	}
+
+	if len(env) == 0 {
+		return nil
+	}
+	return env
+}
+
+func buildGeminiArgs(cfg *config.Config, targetArg string) []string {
+	if cfg == nil {
+		return nil
+	}
+	args := []string{"-o", "stream-json", "-y"}
+
+	if model := strings.TrimSpace(cfg.Model); model != "" {
+		args = append(args, "-m", model)
+	}
+
+	if cfg.Mode == "resume" {
+		if cfg.SessionID != "" {
+			args = append(args, "-r", cfg.SessionID)
+		}
+	}
+
+	// Use positional argument instead of deprecated -p flag.
+	// For stdin mode ("-"), use -p to read from stdin.
+	if targetArg == "-" {
+		args = append(args, "-p", targetArg)
+	} else {
+		args = append(args, targetArg)
+	}
+
+	return args
+}
--- a/codeagent-wrapper/internal/backend/opencode.go
+++ b/codeagent-wrapper/internal/backend/opencode.go
@@ -0,0 +1,29 @@
+package backend
+
+import (
+	"strings"
+
+	config "codeagent-wrapper/internal/config"
+)
+
+type OpencodeBackend struct{}
+
+func (OpencodeBackend) Name() string                                 { return "opencode" }
+func (OpencodeBackend) Command() string                              { return "opencode" }
+func (OpencodeBackend) Env(baseURL, apiKey string) map[string]string { return nil }
+func (OpencodeBackend) BuildArgs(cfg *config.Config, targetArg string) []string {
+	args := []string{"run"}
+	if cfg != nil {
+		if model := strings.TrimSpace(cfg.Model); model != "" {
+			args = append(args, "-m", model)
+		}
+		if cfg.Mode == "resume" && cfg.SessionID != "" {
+			args = append(args, "-s", cfg.SessionID)
+		}
+	}
+	args = append(args, "--format", "json")
+	if targetArg != "-" {
+		args = append(args, targetArg)
+	}
+	return args
+}
--- a/codeagent-wrapper/internal/backend/registry.go
+++ b/codeagent-wrapper/internal/backend/registry.go
@@ -0,0 +1,29 @@
+package backend
+
+import (
+	"fmt"
+	"strings"
+)
+
+var registry = map[string]Backend{
+	"codex":    CodexBackend{},
+	"claude":   ClaudeBackend{},
+	"gemini":   GeminiBackend{},
+	"opencode": OpencodeBackend{},
+}
+
+// Registry exposes the available backends. Intended for internal inspection/tests.
+func Registry() map[string]Backend {
+	return registry
+}
+
+func Select(name string) (Backend, error) {
+	key := strings.ToLower(strings.TrimSpace(name))
+	if key == "" {
+		key = "codex"
+	}
+	if backend, ok := registry[key]; ok {
+		return backend, nil
+	}
+	return nil, fmt.Errorf("unsupported backend %q", name)
+}
--- a/codeagent-wrapper/internal/config/agent.go
+++ b/codeagent-wrapper/internal/config/agent.go
@@ -0,0 +1,220 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+
+	ilogger "codeagent-wrapper/internal/logger"
+
+	"github.com/goccy/go-json"
+)
+
+type BackendConfig struct {
+	BaseURL string `json:"base_url,omitempty"`
+	APIKey  string `json:"api_key,omitempty"`
+}
+
+type AgentModelConfig struct {
+	Backend     string `json:"backend"`
+	Model       string `json:"model"`
+	PromptFile  string `json:"prompt_file,omitempty"`
+	Description string `json:"description,omitempty"`
+	Yolo        bool   `json:"yolo,omitempty"`
+	Reasoning   string `json:"reasoning,omitempty"`
+	BaseURL     string `json:"base_url,omitempty"`
+	APIKey      string `json:"api_key,omitempty"`
+}
+
+type ModelsConfig struct {
+	DefaultBackend string                      `json:"default_backend"`
+	DefaultModel   string                      `json:"default_model"`
+	Agents         map[string]AgentModelConfig `json:"agents"`
+	Backends       map[string]BackendConfig    `json:"backends,omitempty"`
+}
+
+var defaultModelsConfig = ModelsConfig{
+	DefaultBackend: "opencode",
+	DefaultModel:   "opencode/grok-code",
+	Agents: map[string]AgentModelConfig{
+		"oracle":                  {Backend: "claude", Model: "claude-opus-4-5-20251101", PromptFile: "~/.claude/skills/omo/references/oracle.md", Description: "Technical advisor"},
+		"librarian":               {Backend: "claude", Model: "claude-sonnet-4-5-20250929", PromptFile: "~/.claude/skills/omo/references/librarian.md", Description: "Researcher"},
+		"explore":                 {Backend: "opencode", Model: "opencode/grok-code", PromptFile: "~/.claude/skills/omo/references/explore.md", Description: "Code search"},
+		"develop":                 {Backend: "codex", Model: "", PromptFile: "~/.claude/skills/omo/references/develop.md", Description: "Code development"},
+		"frontend-ui-ux-engineer": {Backend: "gemini", Model: "", PromptFile: "~/.claude/skills/omo/references/frontend-ui-ux-engineer.md", Description: "Frontend engineer"},
+		"document-writer":         {Backend: "gemini", Model: "", PromptFile: "~/.claude/skills/omo/references/document-writer.md", Description: "Documentation"},
+	},
+}
+
+var (
+	modelsConfigOnce   sync.Once
+	modelsConfigCached *ModelsConfig
+)
+
+func modelsConfig() *ModelsConfig {
+	modelsConfigOnce.Do(func() {
+		modelsConfigCached = loadModelsConfig()
+	})
+	if modelsConfigCached == nil {
+		return &defaultModelsConfig
+	}
+	return modelsConfigCached
+}
+
+func loadModelsConfig() *ModelsConfig {
+	home, err := os.UserHomeDir()
+	if err != nil {
+		ilogger.LogWarn(fmt.Sprintf("Failed to resolve home directory for models config: %v; using defaults", err))
+		return &defaultModelsConfig
+	}
+
+	configDir := filepath.Clean(filepath.Join(home, ".codeagent"))
+	configPath := filepath.Clean(filepath.Join(configDir, "models.json"))
+	rel, err := filepath.Rel(configDir, configPath)
+	if err != nil || rel == ".." || strings.HasPrefix(rel, ".."+string(os.PathSeparator)) {
+		return &defaultModelsConfig
+	}
+
+	data, err := os.ReadFile(configPath) // #nosec G304 -- path is fixed under user home and validated to stay within configDir
+	if err != nil {
+		if !os.IsNotExist(err) {
+			ilogger.LogWarn(fmt.Sprintf("Failed to read models config %s: %v; using defaults", configPath, err))
+		}
+		return &defaultModelsConfig
+	}
+
+	var cfg ModelsConfig
+	if err := json.Unmarshal(data, &cfg); err != nil {
+		ilogger.LogWarn(fmt.Sprintf("Failed to parse models config %s: %v; using defaults", configPath, err))
+		return &defaultModelsConfig
+	}
+
+	cfg.DefaultBackend = strings.TrimSpace(cfg.DefaultBackend)
+	if cfg.DefaultBackend == "" {
+		cfg.DefaultBackend = defaultModelsConfig.DefaultBackend
+	}
+	cfg.DefaultModel = strings.TrimSpace(cfg.DefaultModel)
+	if cfg.DefaultModel == "" {
+		cfg.DefaultModel = defaultModelsConfig.DefaultModel
+	}
+
+	// Merge with defaults
+	for name, agent := range defaultModelsConfig.Agents {
+		if _, exists := cfg.Agents[name]; !exists {
+			if cfg.Agents == nil {
+				cfg.Agents = make(map[string]AgentModelConfig)
+			}
+			cfg.Agents[name] = agent
+		}
+	}
+
+	// Normalize backend keys so lookups can be case-insensitive.
+	if len(cfg.Backends) > 0 {
+		normalized := make(map[string]BackendConfig, len(cfg.Backends))
+		for k, v := range cfg.Backends {
+			key := strings.ToLower(strings.TrimSpace(k))
+			if key == "" {
+				continue
+			}
+			normalized[key] = v
+		}
+		if len(normalized) > 0 {
+			cfg.Backends = normalized
+		} else {
+			cfg.Backends = nil
+		}
+	}
+
+	return &cfg
+}
+
+func LoadDynamicAgent(name string) (AgentModelConfig, bool) {
+	if err := ValidateAgentName(name); err != nil {
+		return AgentModelConfig{}, false
+	}
+
+	home, err := os.UserHomeDir()
+	if err != nil || strings.TrimSpace(home) == "" {
+		return AgentModelConfig{}, false
+	}
+
+	absPath := filepath.Join(home, ".codeagent", "agents", name+".md")
+	info, err := os.Stat(absPath)
+	if err != nil || info.IsDir() {
+		return AgentModelConfig{}, false
+	}
+
+	return AgentModelConfig{PromptFile: "~/.codeagent/agents/" + name + ".md"}, true
+}
+
+func ResolveBackendConfig(backendName string) (baseURL, apiKey string) {
+	cfg := modelsConfig()
+	resolved := resolveBackendConfig(cfg, backendName)
+	return strings.TrimSpace(resolved.BaseURL), strings.TrimSpace(resolved.APIKey)
+}
+
+func resolveBackendConfig(cfg *ModelsConfig, backendName string) BackendConfig {
+	if cfg == nil || len(cfg.Backends) == 0 {
+		return BackendConfig{}
+	}
+	key := strings.ToLower(strings.TrimSpace(backendName))
+	if key == "" {
+		key = strings.ToLower(strings.TrimSpace(cfg.DefaultBackend))
+	}
+	if key == "" {
+		return BackendConfig{}
+	}
+	if backend, ok := cfg.Backends[key]; ok {
+		return backend
+	}
+	return BackendConfig{}
+}
+
+func resolveAgentConfig(agentName string) (backend, model, promptFile, reasoning, baseURL, apiKey string, yolo bool) {
+	cfg := modelsConfig()
+	if agent, ok := cfg.Agents[agentName]; ok {
+		backend = strings.TrimSpace(agent.Backend)
+		if backend == "" {
+			backend = cfg.DefaultBackend
+		}
+		backendCfg := resolveBackendConfig(cfg, backend)
+
+		baseURL = strings.TrimSpace(agent.BaseURL)
+		if baseURL == "" {
+			baseURL = strings.TrimSpace(backendCfg.BaseURL)
+		}
+		apiKey = strings.TrimSpace(agent.APIKey)
+		if apiKey == "" {
+			apiKey = strings.TrimSpace(backendCfg.APIKey)
+		}
+
+		return backend, strings.TrimSpace(agent.Model), agent.PromptFile, agent.Reasoning, baseURL, apiKey, agent.Yolo
+	}
+
+	if dynamic, ok := LoadDynamicAgent(agentName); ok {
+		backend = cfg.DefaultBackend
+		model = cfg.DefaultModel
+		backendCfg := resolveBackendConfig(cfg, backend)
+		baseURL = strings.TrimSpace(backendCfg.BaseURL)
+		apiKey = strings.TrimSpace(backendCfg.APIKey)
+		return backend, model, dynamic.PromptFile, "", baseURL, apiKey, false
+	}
+
+	backend = cfg.DefaultBackend
+	model = cfg.DefaultModel
+	backendCfg := resolveBackendConfig(cfg, backend)
+	baseURL = strings.TrimSpace(backendCfg.BaseURL)
+	apiKey = strings.TrimSpace(backendCfg.APIKey)
+	return backend, model, "", "", baseURL, apiKey, false
+}
+
+func ResolveAgentConfig(agentName string) (backend, model, promptFile, reasoning, baseURL, apiKey string, yolo bool) {
+	return resolveAgentConfig(agentName)
+}
+
+func ResetModelsConfigCacheForTest() {
+	modelsConfigCached = nil
+	modelsConfigOnce = sync.Once{}
+}
--- a/codeagent-wrapper/internal/config/agent_config_test.go
+++ b/codeagent-wrapper/internal/config/agent_config_test.go
@@ -0,0 +1,221 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestResolveAgentConfig_Defaults(t *testing.T) {
+	home := t.TempDir()
+	t.Setenv("HOME", home)
+	t.Setenv("USERPROFILE", home)
+	t.Cleanup(ResetModelsConfigCacheForTest)
+	ResetModelsConfigCacheForTest()
+
+	// Test that default agents resolve correctly without config file
+	tests := []struct {
+		agent          string
+		wantBackend    string
+		wantModel      string
+		wantPromptFile string
+	}{
+		{"oracle", "claude", "claude-opus-4-5-20251101", "~/.claude/skills/omo/references/oracle.md"},
+		{"librarian", "claude", "claude-sonnet-4-5-20250929", "~/.claude/skills/omo/references/librarian.md"},
+		{"explore", "opencode", "opencode/grok-code", "~/.claude/skills/omo/references/explore.md"},
+		{"frontend-ui-ux-engineer", "gemini", "", "~/.claude/skills/omo/references/frontend-ui-ux-engineer.md"},
+		{"document-writer", "gemini", "", "~/.claude/skills/omo/references/document-writer.md"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.agent, func(t *testing.T) {
+			backend, model, promptFile, _, _, _, _ := resolveAgentConfig(tt.agent)
+			if backend != tt.wantBackend {
+				t.Errorf("backend = %q, want %q", backend, tt.wantBackend)
+			}
+			if model != tt.wantModel {
+				t.Errorf("model = %q, want %q", model, tt.wantModel)
+			}
+			if promptFile != tt.wantPromptFile {
+				t.Errorf("promptFile = %q, want %q", promptFile, tt.wantPromptFile)
+			}
+		})
+	}
+}
+
+func TestResolveAgentConfig_UnknownAgent(t *testing.T) {
+	home := t.TempDir()
+	t.Setenv("HOME", home)
+	t.Setenv("USERPROFILE", home)
+	t.Cleanup(ResetModelsConfigCacheForTest)
+	ResetModelsConfigCacheForTest()
+
+	backend, model, promptFile, _, _, _, _ := resolveAgentConfig("unknown-agent")
+	if backend != "opencode" {
+		t.Errorf("unknown agent backend = %q, want %q", backend, "opencode")
+	}
+	if model != "opencode/grok-code" {
+		t.Errorf("unknown agent model = %q, want %q", model, "opencode/grok-code")
+	}
+	if promptFile != "" {
+		t.Errorf("unknown agent promptFile = %q, want empty", promptFile)
+	}
+}
+
+func TestLoadModelsConfig_NoFile(t *testing.T) {
+	home := "/nonexistent/path/that/does/not/exist"
+	t.Setenv("HOME", home)
+	t.Setenv("USERPROFILE", home)
+	t.Cleanup(ResetModelsConfigCacheForTest)
+	ResetModelsConfigCacheForTest()
+
+	cfg := loadModelsConfig()
+	if cfg.DefaultBackend != "opencode" {
+		t.Errorf("DefaultBackend = %q, want %q", cfg.DefaultBackend, "opencode")
+	}
+	if len(cfg.Agents) != 6 {
+		t.Errorf("len(Agents) = %d, want 6", len(cfg.Agents))
+	}
+}
+
+func TestLoadModelsConfig_WithFile(t *testing.T) {
+	// Create temp dir and config file
+	tmpDir := t.TempDir()
+	configDir := filepath.Join(tmpDir, ".codeagent")
+	if err := os.MkdirAll(configDir, 0755); err != nil {
+		t.Fatal(err)
+	}
+
+	configContent := `{
+		"default_backend": "claude",
+		"default_model": "claude-opus-4",
+		"backends": {
+			"Claude": {
+				"base_url": "https://backend.example",
+				"api_key": "backend-key"
+			},
+			"codex": {
+				"base_url": "https://openai.example",
+				"api_key": "openai-key"
+			}
+		},
+		"agents": {
+			"custom-agent": {
+				"backend": "codex",
+				"model": "gpt-4o",
+				"description": "Custom agent",
+				"base_url": "https://agent.example",
+				"api_key": "agent-key"
+			}
+		}
+	}`
+	configPath := filepath.Join(configDir, "models.json")
+	if err := os.WriteFile(configPath, []byte(configContent), 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	t.Setenv("HOME", tmpDir)
+	t.Setenv("USERPROFILE", tmpDir)
+	t.Cleanup(ResetModelsConfigCacheForTest)
+	ResetModelsConfigCacheForTest()
+
+	cfg := loadModelsConfig()
+
+	if cfg.DefaultBackend != "claude" {
+		t.Errorf("DefaultBackend = %q, want %q", cfg.DefaultBackend, "claude")
+	}
+	if cfg.DefaultModel != "claude-opus-4" {
+		t.Errorf("DefaultModel = %q, want %q", cfg.DefaultModel, "claude-opus-4")
+	}
+
+	// Check custom agent
+	if agent, ok := cfg.Agents["custom-agent"]; !ok {
+		t.Error("custom-agent not found")
+	} else {
+		if agent.Backend != "codex" {
+			t.Errorf("custom-agent.Backend = %q, want %q", agent.Backend, "codex")
+		}
+		if agent.Model != "gpt-4o" {
+			t.Errorf("custom-agent.Model = %q, want %q", agent.Model, "gpt-4o")
+		}
+	}
+
+	// Check that defaults are merged
+	if _, ok := cfg.Agents["oracle"]; !ok {
+		t.Error("default agent oracle should be merged")
+	}
+
+	baseURL, apiKey := ResolveBackendConfig("claude")
+	if baseURL != "https://backend.example" {
+		t.Errorf("ResolveBackendConfig(baseURL) = %q, want %q", baseURL, "https://backend.example")
+	}
+	if apiKey != "backend-key" {
+		t.Errorf("ResolveBackendConfig(apiKey) = %q, want %q", apiKey, "backend-key")
+	}
+
+	backend, model, _, _, agentBaseURL, agentAPIKey, _ := ResolveAgentConfig("custom-agent")
+	if backend != "codex" {
+		t.Errorf("ResolveAgentConfig(backend) = %q, want %q", backend, "codex")
+	}
+	if model != "gpt-4o" {
+		t.Errorf("ResolveAgentConfig(model) = %q, want %q", model, "gpt-4o")
+	}
+	if agentBaseURL != "https://agent.example" {
+		t.Errorf("ResolveAgentConfig(baseURL) = %q, want %q", agentBaseURL, "https://agent.example")
+	}
+	if agentAPIKey != "agent-key" {
+		t.Errorf("ResolveAgentConfig(apiKey) = %q, want %q", agentAPIKey, "agent-key")
+	}
+}
+
+func TestResolveAgentConfig_DynamicAgent(t *testing.T) {
+	home := t.TempDir()
+	t.Setenv("HOME", home)
+	t.Setenv("USERPROFILE", home)
+	t.Cleanup(ResetModelsConfigCacheForTest)
+	ResetModelsConfigCacheForTest()
+
+	agentDir := filepath.Join(home, ".codeagent", "agents")
+	if err := os.MkdirAll(agentDir, 0o755); err != nil {
+		t.Fatalf("MkdirAll: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(agentDir, "sarsh.md"), []byte("prompt\n"), 0o644); err != nil {
+		t.Fatalf("WriteFile: %v", err)
+	}
+
+	backend, model, promptFile, _, _, _, _ := resolveAgentConfig("sarsh")
+	if backend != "opencode" {
+		t.Errorf("backend = %q, want %q", backend, "opencode")
+	}
+	if model != "opencode/grok-code" {
+		t.Errorf("model = %q, want %q", model, "opencode/grok-code")
+	}
+	if promptFile != "~/.codeagent/agents/sarsh.md" {
+		t.Errorf("promptFile = %q, want %q", promptFile, "~/.codeagent/agents/sarsh.md")
+	}
+}
+
+func TestLoadModelsConfig_InvalidJSON(t *testing.T) {
+	tmpDir := t.TempDir()
+	configDir := filepath.Join(tmpDir, ".codeagent")
+	if err := os.MkdirAll(configDir, 0755); err != nil {
+		t.Fatal(err)
+	}
+
+	// Write invalid JSON
+	configPath := filepath.Join(configDir, "models.json")
+	if err := os.WriteFile(configPath, []byte("invalid json {"), 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	t.Setenv("HOME", tmpDir)
+	t.Setenv("USERPROFILE", tmpDir)
+	t.Cleanup(ResetModelsConfigCacheForTest)
+	ResetModelsConfigCacheForTest()
+
+	cfg := loadModelsConfig()
+	// Should fall back to defaults
+	if cfg.DefaultBackend != "opencode" {
+		t.Errorf("invalid JSON should fallback, got DefaultBackend = %q", cfg.DefaultBackend)
+	}
+}
--- a/codeagent-wrapper/internal/config/config.go
+++ b/codeagent-wrapper/internal/config/config.go
@@ -0,0 +1,102 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+)
+
+// Config holds CLI configuration.
+type Config struct {
+	Mode               string // "new" or "resume"
+	Task               string
+	SessionID          string
+	WorkDir            string
+	Model              string
+	ReasoningEffort    string
+	ExplicitStdin      bool
+	Timeout            int
+	Backend            string
+	Agent              string
+	PromptFile         string
+	PromptFileExplicit bool
+	SkipPermissions    bool
+	Yolo               bool
+	MaxParallelWorkers int
+}
+
+// EnvFlagEnabled returns true when the environment variable exists and is not
+// explicitly set to a falsey value ("0/false/no/off").
+func EnvFlagEnabled(key string) bool {
+	val, ok := os.LookupEnv(key)
+	if !ok {
+		return false
+	}
+	val = strings.TrimSpace(strings.ToLower(val))
+	switch val {
+	case "", "0", "false", "no", "off":
+		return false
+	default:
+		return true
+	}
+}
+
+func ParseBoolFlag(val string, defaultValue bool) bool {
+	val = strings.TrimSpace(strings.ToLower(val))
+	switch val {
+	case "1", "true", "yes", "on":
+		return true
+	case "0", "false", "no", "off":
+		return false
+	default:
+		return defaultValue
+	}
+}
+
+// EnvFlagDefaultTrue returns true unless the env var is explicitly set to
+// false/0/no/off.
+func EnvFlagDefaultTrue(key string) bool {
+	val, ok := os.LookupEnv(key)
+	if !ok {
+		return true
+	}
+	return ParseBoolFlag(val, true)
+}
+
+func ValidateAgentName(name string) error {
+	if strings.TrimSpace(name) == "" {
+		return fmt.Errorf("agent name is empty")
+	}
+	for _, r := range name {
+		switch {
+		case r >= 'a' && r <= 'z':
+		case r >= 'A' && r <= 'Z':
+		case r >= '0' && r <= '9':
+		case r == '-', r == '_':
+		default:
+			return fmt.Errorf("agent name %q contains invalid character %q", name, r)
+		}
+	}
+	return nil
+}
+
+const maxParallelWorkersLimit = 100
+
+// ResolveMaxParallelWorkers reads CODEAGENT_MAX_PARALLEL_WORKERS. It returns 0
+// for "unlimited".
+func ResolveMaxParallelWorkers() int {
+	raw := strings.TrimSpace(os.Getenv("CODEAGENT_MAX_PARALLEL_WORKERS"))
+	if raw == "" {
+		return 0
+	}
+
+	value, err := strconv.Atoi(raw)
+	if err != nil || value < 0 {
+		return 0
+	}
+	if value > maxParallelWorkersLimit {
+		return maxParallelWorkersLimit
+	}
+	return value
+}
--- a/codeagent-wrapper/internal/config/viper.go
+++ b/codeagent-wrapper/internal/config/viper.go
@@ -0,0 +1,47 @@
+package config
+
+import (
+	"errors"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/spf13/viper"
+)
+
+// NewViper returns a viper instance configured for CODEAGENT_* environment
+// variables and an optional config file.
+//
+// Search order when configFile is empty:
+//   - $HOME/.codeagent/config.(yaml|yml|json|toml|...)
+func NewViper(configFile string) (*viper.Viper, error) {
+	v := viper.New()
+	v.SetEnvPrefix("CODEAGENT")
+	v.SetEnvKeyReplacer(strings.NewReplacer("-", "_"))
+	v.AutomaticEnv()
+
+	if strings.TrimSpace(configFile) != "" {
+		v.SetConfigFile(configFile)
+		if err := v.ReadInConfig(); err != nil {
+			return nil, err
+		}
+		return v, nil
+	}
+
+	home, err := os.UserHomeDir()
+	if err != nil || strings.TrimSpace(home) == "" {
+		return v, nil
+	}
+
+	v.SetConfigName("config")
+	v.AddConfigPath(filepath.Join(home, ".codeagent"))
+	if err := v.ReadInConfig(); err != nil {
+		var notFound viper.ConfigFileNotFoundError
+		if errors.As(err, &notFound) {
+			return v, nil
+		}
+		return nil, err
+	}
+
+	return v, nil
+}
--- a/codeagent-wrapper/internal/executor/env_inject_test.go
+++ b/codeagent-wrapper/internal/executor/env_inject_test.go
@@ -0,0 +1,193 @@
+package executor
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	backend "codeagent-wrapper/internal/backend"
+	config "codeagent-wrapper/internal/config"
+)
+
+// TestEnvInjectionWithAgent tests the full flow of env injection with agent config
+func TestEnvInjectionWithAgent(t *testing.T) {
+	// Setup temp config
+	tmpDir := t.TempDir()
+	configDir := filepath.Join(tmpDir, ".codeagent")
+	if err := os.MkdirAll(configDir, 0755); err != nil {
+		t.Fatal(err)
+	}
+
+	// Write test config with agent that has base_url and api_key
+	configContent := `{
+		"default_backend": "codex",
+		"agents": {
+			"test-agent": {
+				"backend": "claude",
+				"model": "test-model",
+				"base_url": "https://test.api.com",
+				"api_key": "test-api-key-12345678"
+			}
+		}
+	}`
+	configPath := filepath.Join(configDir, "models.json")
+	if err := os.WriteFile(configPath, []byte(configContent), 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	// Override HOME to use temp dir
+	oldHome := os.Getenv("HOME")
+	os.Setenv("HOME", tmpDir)
+	defer os.Setenv("HOME", oldHome)
+
+	// Reset config cache
+	config.ResetModelsConfigCacheForTest()
+	defer config.ResetModelsConfigCacheForTest()
+
+	// Test ResolveAgentConfig
+	agentBackend, model, _, _, baseURL, apiKey, _ := config.ResolveAgentConfig("test-agent")
+	t.Logf("ResolveAgentConfig: backend=%q, model=%q, baseURL=%q, apiKey=%q",
+		agentBackend, model, baseURL, apiKey)
+
+	if agentBackend != "claude" {
+		t.Errorf("expected backend 'claude', got %q", agentBackend)
+	}
+	if baseURL != "https://test.api.com" {
+		t.Errorf("expected baseURL 'https://test.api.com', got %q", baseURL)
+	}
+	if apiKey != "test-api-key-12345678" {
+		t.Errorf("expected apiKey 'test-api-key-12345678', got %q", apiKey)
+	}
+
+	// Test Backend.Env
+	b := backend.ClaudeBackend{}
+	env := b.Env(baseURL, apiKey)
+	t.Logf("Backend.Env: %v", env)
+
+	if env == nil {
+		t.Fatal("expected non-nil env from Backend.Env")
+	}
+	if env["ANTHROPIC_BASE_URL"] != baseURL {
+		t.Errorf("expected ANTHROPIC_BASE_URL=%q, got %q", baseURL, env["ANTHROPIC_BASE_URL"])
+	}
+	if env["ANTHROPIC_AUTH_TOKEN"] != apiKey {
+		t.Errorf("expected ANTHROPIC_AUTH_TOKEN=%q, got %q", apiKey, env["ANTHROPIC_AUTH_TOKEN"])
+	}
+}
+
+// TestEnvInjectionLogic tests the exact logic used in executor
+func TestEnvInjectionLogic(t *testing.T) {
+	// Setup temp config
+	tmpDir := t.TempDir()
+	configDir := filepath.Join(tmpDir, ".codeagent")
+	if err := os.MkdirAll(configDir, 0755); err != nil {
+		t.Fatal(err)
+	}
+
+	configContent := `{
+		"default_backend": "codex",
+		"agents": {
+			"explore": {
+				"backend": "claude",
+				"model": "MiniMax-M2.1",
+				"base_url": "https://api.minimaxi.com/anthropic",
+				"api_key": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.test"
+			}
+		}
+	}`
+	configPath := filepath.Join(configDir, "models.json")
+	if err := os.WriteFile(configPath, []byte(configContent), 0644); err != nil {
+		t.Fatal(err)
+	}
+
+	oldHome := os.Getenv("HOME")
+	os.Setenv("HOME", tmpDir)
+	defer os.Setenv("HOME", oldHome)
+
+	config.ResetModelsConfigCacheForTest()
+	defer config.ResetModelsConfigCacheForTest()
+
+	// Simulate the executor logic
+	cfgBackend := "claude" // This should come from taskSpec.Backend
+	agentName := "explore"
+
+	// Step 1: Get backend config (usually empty for claude without global config)
+	baseURL, apiKey := config.ResolveBackendConfig(cfgBackend)
+	t.Logf("Step 1 - ResolveBackendConfig(%q): baseURL=%q, apiKey=%q", cfgBackend, baseURL, apiKey)
+
+	// Step 2: If agent specified, get agent config
+	if agentName != "" {
+		agentBackend, _, _, _, agentBaseURL, agentAPIKey, _ := config.ResolveAgentConfig(agentName)
+		t.Logf("Step 2 - ResolveAgentConfig(%q): backend=%q, baseURL=%q, apiKey=%q",
+			agentName, agentBackend, agentBaseURL, agentAPIKey)
+
+		// Step 3: Check if agent backend matches cfg backend
+		if strings.EqualFold(strings.TrimSpace(agentBackend), strings.TrimSpace(cfgBackend)) {
+			baseURL, apiKey = agentBaseURL, agentAPIKey
+			t.Logf("Step 3 - Backend match! Using agent config: baseURL=%q, apiKey=%q", baseURL, apiKey)
+		} else {
+			t.Logf("Step 3 - Backend mismatch: agent=%q, cfg=%q", agentBackend, cfgBackend)
+		}
+	}
+
+	// Step 4: Get env vars from backend
+	b := backend.ClaudeBackend{}
+	injected := b.Env(baseURL, apiKey)
+	t.Logf("Step 4 - Backend.Env: %v", injected)
+
+	// Verify
+	if len(injected) == 0 {
+		t.Fatal("Expected env vars to be injected, got none")
+	}
+
+	expectedURL := "https://api.minimaxi.com/anthropic"
+	if injected["ANTHROPIC_BASE_URL"] != expectedURL {
+		t.Errorf("ANTHROPIC_BASE_URL: expected %q, got %q", expectedURL, injected["ANTHROPIC_BASE_URL"])
+	}
+
+	if _, ok := injected["ANTHROPIC_AUTH_TOKEN"]; !ok {
+		t.Error("ANTHROPIC_AUTH_TOKEN not set")
+	}
+
+	// Step 5: Test masking
+	for k, v := range injected {
+		masked := maskSensitiveValue(k, v)
+		t.Logf("Step 5 - Env log: %s=%s", k, masked)
+	}
+}
+
+// TestTaskSpecBackendPropagation tests that taskSpec.Backend is properly used
+func TestTaskSpecBackendPropagation(t *testing.T) {
+	// Simulate what happens in RunCodexTaskWithContext
+	taskSpec := TaskSpec{
+		ID:      "test",
+		Task:    "hello",
+		Backend: "claude",
+		Agent:   "explore",
+	}
+
+	// This is the logic from executor.go lines 889-916
+	cfg := &config.Config{
+		Mode:    "new",
+		Task:    taskSpec.Task,
+		Backend: "codex", // default
+	}
+
+	var backend Backend = nil // nil in single mode
+	commandName := "codex"    // default
+
+	if backend != nil {
+		cfg.Backend = backend.Name()
+	} else if taskSpec.Backend != "" {
+		cfg.Backend = taskSpec.Backend
+	} else if commandName != "" {
+		cfg.Backend = commandName
+	}
+
+	t.Logf("taskSpec.Backend=%q, cfg.Backend=%q", taskSpec.Backend, cfg.Backend)
+
+	if cfg.Backend != "claude" {
+		t.Errorf("expected cfg.Backend='claude', got %q", cfg.Backend)
+	}
+}
--- a/codeagent-wrapper/internal/executor/env_logging_test.go
+++ b/codeagent-wrapper/internal/executor/env_logging_test.go
@@ -0,0 +1,333 @@
+package executor
+
+import (
+	"strings"
+	"testing"
+
+	backend "codeagent-wrapper/internal/backend"
+)
+
+func TestMaskSensitiveValue(t *testing.T) {
+	tests := []struct {
+		name     string
+		key      string
+		value    string
+		expected string
+	}{
+		{
+			name:     "API_KEY with long value",
+			key:      "ANTHROPIC_AUTH_TOKEN",
+			value:    "sk-ant-api03-xxxxxxxxxxxxxxxxxxxxxxxxxxxx",
+			expected: "sk-a****xxxx",
+		},
+		{
+			name:     "api_key lowercase",
+			key:      "api_key",
+			value:    "abcdefghijklmnop",
+			expected: "abcd****mnop",
+		},
+		{
+			name:     "AUTH_TOKEN",
+			key:      "AUTH_TOKEN",
+			value:    "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9",
+			expected: "eyJh****VCJ9",
+		},
+		{
+			name:     "SECRET",
+			key:      "MY_SECRET",
+			value:    "super-secret-value-12345",
+			expected: "supe****2345",
+		},
+		{
+			name:     "short key value (8 chars)",
+			key:      "API_KEY",
+			value:    "12345678",
+			expected: "****",
+		},
+		{
+			name:     "very short key value",
+			key:      "API_KEY",
+			value:    "abc",
+			expected: "****",
+		},
+		{
+			name:     "empty key value",
+			key:      "API_KEY",
+			value:    "",
+			expected: "",
+		},
+		{
+			name:     "non-sensitive BASE_URL",
+			key:      "ANTHROPIC_BASE_URL",
+			value:    "https://api.anthropic.com",
+			expected: "https://api.anthropic.com",
+		},
+		{
+			name:     "non-sensitive MODEL",
+			key:      "MODEL",
+			value:    "claude-3-opus",
+			expected: "claude-3-opus",
+		},
+		{
+			name:     "case insensitive - Key",
+			key:      "My_Key",
+			value:    "1234567890abcdef",
+			expected: "1234****cdef",
+		},
+		{
+			name:     "case insensitive - TOKEN",
+			key:      "ACCESS_TOKEN",
+			value:    "access123456789",
+			expected: "acce****6789",
+		},
+		{
+			name:     "partial match - apikey",
+			key:      "MYAPIKEY",
+			value:    "1234567890",
+			expected: "1234****7890",
+		},
+		{
+			name:     "partial match - secretvalue",
+			key:      "SECRETVALUE",
+			value:    "abcdefghij",
+			expected: "abcd****ghij",
+		},
+		{
+			name:     "9 char value (just above threshold)",
+			key:      "API_KEY",
+			value:    "123456789",
+			expected: "1234****6789",
+		},
+		{
+			name:     "exactly 8 char value (at threshold)",
+			key:      "API_KEY",
+			value:    "12345678",
+			expected: "****",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := maskSensitiveValue(tt.key, tt.value)
+			if result != tt.expected {
+				t.Errorf("maskSensitiveValue(%q, %q) = %q, want %q", tt.key, tt.value, result, tt.expected)
+			}
+		})
+	}
+}
+
+func TestMaskSensitiveValue_NoLeakage(t *testing.T) {
+	// Ensure sensitive values are never fully exposed
+	sensitiveKeys := []string{"API_KEY", "api_key", "AUTH_TOKEN", "SECRET", "access_token", "MYAPIKEY"}
+	longValue := "this-is-a-very-long-secret-value-that-should-be-masked"
+
+	for _, key := range sensitiveKeys {
+		t.Run(key, func(t *testing.T) {
+			masked := maskSensitiveValue(key, longValue)
+			// Should not contain the full value
+			if masked == longValue {
+				t.Errorf("key %q: value was not masked", key)
+			}
+			// Should contain mask marker
+			if !strings.Contains(masked, "****") {
+				t.Errorf("key %q: masked value %q does not contain ****", key, masked)
+			}
+			// First 4 chars should be visible
+			if !strings.HasPrefix(masked, longValue[:4]) {
+				t.Errorf("key %q: masked value should start with first 4 chars", key)
+			}
+			// Last 4 chars should be visible
+			if !strings.HasSuffix(masked, longValue[len(longValue)-4:]) {
+				t.Errorf("key %q: masked value should end with last 4 chars", key)
+			}
+		})
+	}
+}
+
+func TestMaskSensitiveValue_NonSensitivePassthrough(t *testing.T) {
+	// Non-sensitive keys should pass through unchanged
+	nonSensitiveKeys := []string{
+		"ANTHROPIC_BASE_URL",
+		"BASE_URL",
+		"MODEL",
+		"BACKEND",
+		"WORKDIR",
+		"HOME",
+		"PATH",
+	}
+	value := "any-value-here-12345"
+
+	for _, key := range nonSensitiveKeys {
+		t.Run(key, func(t *testing.T) {
+			result := maskSensitiveValue(key, value)
+			if result != value {
+				t.Errorf("key %q: expected passthrough but got %q", key, result)
+			}
+		})
+	}
+}
+
+// TestClaudeBackendEnv tests that ClaudeBackend.Env returns correct env vars
+func TestClaudeBackendEnv(t *testing.T) {
+	tests := []struct {
+		name       string
+		baseURL    string
+		apiKey     string
+		expectKeys []string
+		expectNil  bool
+	}{
+		{
+			name:       "both base_url and api_key",
+			baseURL:    "https://api.custom.com",
+			apiKey:     "sk-test-key-12345",
+			expectKeys: []string{"ANTHROPIC_BASE_URL", "ANTHROPIC_AUTH_TOKEN"},
+		},
+		{
+			name:       "only base_url",
+			baseURL:    "https://api.custom.com",
+			apiKey:     "",
+			expectKeys: []string{"ANTHROPIC_BASE_URL"},
+		},
+		{
+			name:       "only api_key",
+			baseURL:    "",
+			apiKey:     "sk-test-key-12345",
+			expectKeys: []string{"ANTHROPIC_AUTH_TOKEN"},
+		},
+		{
+			name:      "both empty",
+			baseURL:   "",
+			apiKey:    "",
+			expectNil: true,
+		},
+		{
+			name:      "whitespace only",
+			baseURL:   "   ",
+			apiKey:    "  ",
+			expectNil: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			b := backend.ClaudeBackend{}
+			env := b.Env(tt.baseURL, tt.apiKey)
+
+			if tt.expectNil {
+				if env != nil {
+					t.Errorf("expected nil env, got %v", env)
+				}
+				return
+			}
+
+			if env == nil {
+				t.Fatal("expected non-nil env")
+			}
+
+			for _, key := range tt.expectKeys {
+				if _, ok := env[key]; !ok {
+					t.Errorf("expected key %q in env", key)
+				}
+			}
+
+			// Verify values are correct
+			if tt.baseURL != "" && strings.TrimSpace(tt.baseURL) != "" {
+				if env["ANTHROPIC_BASE_URL"] != strings.TrimSpace(tt.baseURL) {
+					t.Errorf("ANTHROPIC_BASE_URL = %q, want %q", env["ANTHROPIC_BASE_URL"], strings.TrimSpace(tt.baseURL))
+				}
+			}
+			if tt.apiKey != "" && strings.TrimSpace(tt.apiKey) != "" {
+				if env["ANTHROPIC_AUTH_TOKEN"] != strings.TrimSpace(tt.apiKey) {
+					t.Errorf("ANTHROPIC_AUTH_TOKEN = %q, want %q", env["ANTHROPIC_AUTH_TOKEN"], strings.TrimSpace(tt.apiKey))
+				}
+			}
+		})
+	}
+}
+
+// TestEnvLoggingIntegration tests that env vars are properly masked in logs
+func TestEnvLoggingIntegration(t *testing.T) {
+	b := backend.ClaudeBackend{}
+	baseURL := "https://api.minimaxi.com/anthropic"
+	apiKey := "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.longjwttoken"
+
+	env := b.Env(baseURL, apiKey)
+	if env == nil {
+		t.Fatal("expected non-nil env")
+	}
+
+	// Verify that when we log these values, sensitive ones are masked
+	for k, v := range env {
+		masked := maskSensitiveValue(k, v)
+
+		if k == "ANTHROPIC_BASE_URL" {
+			// URL should not be masked
+			if masked != v {
+				t.Errorf("BASE_URL should not be masked: got %q, want %q", masked, v)
+			}
+		}
+
+		if k == "ANTHROPIC_AUTH_TOKEN" {
+			// API key should be masked
+			if masked == v {
+				t.Errorf("API_KEY should be masked, but got original value")
+			}
+			if !strings.Contains(masked, "****") {
+				t.Errorf("masked API_KEY should contain ****: got %q", masked)
+			}
+			// Should still show first 4 and last 4 chars
+			if !strings.HasPrefix(masked, v[:4]) {
+				t.Errorf("masked value should start with first 4 chars of original")
+			}
+			if !strings.HasSuffix(masked, v[len(v)-4:]) {
+				t.Errorf("masked value should end with last 4 chars of original")
+			}
+		}
+	}
+}
+
+// TestGeminiBackendEnv tests GeminiBackend.Env for comparison
+func TestGeminiBackendEnv(t *testing.T) {
+	b := backend.GeminiBackend{}
+	env := b.Env("https://custom.api", "gemini-api-key-12345")
+
+	if env == nil {
+		t.Fatal("expected non-nil env")
+	}
+
+	// Check that GEMINI env vars are set
+	if _, ok := env["GOOGLE_GEMINI_BASE_URL"]; !ok {
+		t.Error("expected GOOGLE_GEMINI_BASE_URL in env")
+	}
+	if _, ok := env["GEMINI_API_KEY"]; !ok {
+		t.Error("expected GEMINI_API_KEY in env")
+	}
+
+	// Verify masking works for Gemini keys too
+	for k, v := range env {
+		masked := maskSensitiveValue(k, v)
+		if strings.Contains(strings.ToLower(k), "key") {
+			if masked == v && len(v) > 0 {
+				t.Errorf("key %q should be masked", k)
+			}
+		}
+	}
+}
+
+// TestCodexBackendEnv tests CodexBackend.Env
+func TestCodexBackendEnv(t *testing.T) {
+	b := backend.CodexBackend{}
+	env := b.Env("https://custom.api", "codex-api-key-12345")
+
+	if env == nil {
+		t.Fatal("expected non-nil env for codex")
+	}
+
+	// Check for OPENAI env vars
+	if _, ok := env["OPENAI_BASE_URL"]; !ok {
+		t.Error("expected OPENAI_BASE_URL in env")
+	}
+	if _, ok := env["OPENAI_API_KEY"]; !ok {
+		t.Error("expected OPENAI_API_KEY in env")
+	}
+}
--- a/codeagent-wrapper/internal/executor/env_stderr_test.go
+++ b/codeagent-wrapper/internal/executor/env_stderr_test.go
@@ -0,0 +1,133 @@
+package executor
+
+import (
+	"context"
+	"errors"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	config "codeagent-wrapper/internal/config"
+)
+
+type fakeCmd struct {
+	env map[string]string
+}
+
+func (f *fakeCmd) Start() error { return nil }
+func (f *fakeCmd) Wait() error  { return nil }
+func (f *fakeCmd) StdoutPipe() (io.ReadCloser, error) {
+	return io.NopCloser(strings.NewReader("")), nil
+}
+func (f *fakeCmd) StderrPipe() (io.ReadCloser, error) {
+	return nil, errors.New("fake stderr pipe error")
+}
+func (f *fakeCmd) StdinPipe() (io.WriteCloser, error) {
+	return nil, errors.New("fake stdin pipe error")
+}
+func (f *fakeCmd) SetStderr(io.Writer) {}
+func (f *fakeCmd) SetDir(string)       {}
+func (f *fakeCmd) SetEnv(env map[string]string) {
+	if len(env) == 0 {
+		return
+	}
+	if f.env == nil {
+		f.env = make(map[string]string, len(env))
+	}
+	for k, v := range env {
+		f.env[k] = v
+	}
+}
+func (f *fakeCmd) Process() processHandle { return nil }
+
+func TestEnvInjection_LogsToStderrAndMasksKey(t *testing.T) {
+	// Arrange ~/.codeagent/models.json via HOME override.
+	tmpDir := t.TempDir()
+	configDir := filepath.Join(tmpDir, ".codeagent")
+	if err := os.MkdirAll(configDir, 0o755); err != nil {
+		t.Fatal(err)
+	}
+	const baseURL = "https://api.minimaxi.com/anthropic"
+	const apiKey = "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.test"
+	models := `{
+  "agents": {
+    "explore": {
+      "backend": "claude",
+      "model": "MiniMax-M2.1",
+      "base_url": "` + baseURL + `",
+      "api_key": "` + apiKey + `"
+    }
+  }
+}`
+	if err := os.WriteFile(filepath.Join(configDir, "models.json"), []byte(models), 0o644); err != nil {
+		t.Fatal(err)
+	}
+
+	oldHome := os.Getenv("HOME")
+	if err := os.Setenv("HOME", tmpDir); err != nil {
+		t.Fatal(err)
+	}
+	defer func() { _ = os.Setenv("HOME", oldHome) }()
+
+	config.ResetModelsConfigCacheForTest()
+	defer config.ResetModelsConfigCacheForTest()
+
+	// Capture stderr (RunCodexTaskWithContext prints env injection lines there).
+	r, w, err := os.Pipe()
+	if err != nil {
+		t.Fatal(err)
+	}
+	oldStderr := os.Stderr
+	os.Stderr = w
+	defer func() { os.Stderr = oldStderr }()
+
+	readDone := make(chan string, 1)
+	go func() {
+		defer r.Close()
+		b, _ := io.ReadAll(r)
+		readDone <- string(b)
+	}()
+
+	var cmd *fakeCmd
+	restoreRunner := SetNewCommandRunner(func(ctx context.Context, name string, args ...string) CommandRunner {
+		cmd = &fakeCmd{}
+		return cmd
+	})
+	defer restoreRunner()
+
+	// Act: force an early return right after env injection by making StderrPipe fail.
+	_ = RunCodexTaskWithContext(
+		context.Background(),
+		TaskSpec{Task: "hi", WorkDir: ".", Backend: "claude", Agent: "explore"},
+		nil,
+		"claude",
+		nil,
+		nil,
+		false,
+		false,
+		1,
+	)
+
+	_ = w.Close()
+	got := <-readDone
+
+	// Assert: env was injected into the command and logging is present with masking.
+	if cmd == nil || cmd.env == nil {
+		t.Fatalf("expected cmd env to be set, got cmd=%v env=%v", cmd, nil)
+	}
+	if cmd.env["ANTHROPIC_BASE_URL"] != baseURL {
+		t.Fatalf("ANTHROPIC_BASE_URL=%q, want %q", cmd.env["ANTHROPIC_BASE_URL"], baseURL)
+	}
+	if cmd.env["ANTHROPIC_AUTH_TOKEN"] != apiKey {
+		t.Fatalf("ANTHROPIC_AUTH_TOKEN=%q, want %q", cmd.env["ANTHROPIC_AUTH_TOKEN"], apiKey)
+	}
+
+	if !strings.Contains(got, "Env: ANTHROPIC_BASE_URL="+baseURL) {
+		t.Fatalf("stderr missing base URL env log; stderr=%q", got)
+	}
+	if !strings.Contains(got, "Env: ANTHROPIC_AUTH_TOKEN=eyJh****test") {
+		t.Fatalf("stderr missing masked API key log; stderr=%q", got)
+	}
+}
--- a/codeagent-wrapper/internal/executor/executor.go
+++ b/codeagent-wrapper/internal/executor/executor.go
@@ -1,4 +1,4 @@
-package main
+package executor

 import (
 	"context"
@@ -14,15 +14,98 @@ import (
 	"sync/atomic"
 	"syscall"
 	"time"
+
+	backend "codeagent-wrapper/internal/backend"
+	config "codeagent-wrapper/internal/config"
+	ilogger "codeagent-wrapper/internal/logger"
+	parser "codeagent-wrapper/internal/parser"
+	utils "codeagent-wrapper/internal/utils"
 )

 const postMessageTerminateDelay = 1 * time.Second
+const forceKillWaitTimeout = 5 * time.Second
+
+// Defaults duplicated from wrapper for module decoupling.
+const (
+	defaultWorkdir        = "."
+	defaultCoverageTarget = 90.0
+	defaultBackendName    = "codex"
+
+	codexLogLineLimit  = 1000
+	stderrCaptureLimit = 4 * 1024
+)
+
+const (
+	// stdout close reasons
+	stdoutCloseReasonWait  = "wait-done"
+	stdoutCloseReasonDrain = "drain-timeout"
+	stdoutCloseReasonCtx   = "context-cancel"
+	stdoutDrainTimeout     = 500 * time.Millisecond
+)
+
+// Hook points (tests can override inside this package).
+var (
+	selectBackendFn    = backend.Select
+	commandContext     = exec.CommandContext
+	terminateCommandFn = terminateCommand
+)
+
+var forceKillDelay atomic.Int32
+
+func init() {
+	forceKillDelay.Store(5) // seconds - default value
+}
+
+type (
+	Backend = backend.Backend
+	Config  = config.Config
+	Logger  = ilogger.Logger
+)
+
+type minimalClaudeSettings = backend.MinimalClaudeSettings
+
+func loadMinimalClaudeSettings() minimalClaudeSettings { return backend.LoadMinimalClaudeSettings() }
+
+func loadGeminiEnv() map[string]string { return backend.LoadGeminiEnv() }
+
+func NewLogger() (*Logger, error) { return ilogger.NewLogger() }
+
+func NewLoggerWithSuffix(suffix string) (*Logger, error) { return ilogger.NewLoggerWithSuffix(suffix) }
+
+func setLogger(l *Logger) { ilogger.SetLogger(l) }
+
+func closeLogger() error { return ilogger.CloseLogger() }
+
+func activeLogger() *Logger { return ilogger.ActiveLogger() }
+
+func logInfo(msg string) { ilogger.LogInfo(msg) }
+
+func logWarn(msg string) { ilogger.LogWarn(msg) }
+
+func logError(msg string) { ilogger.LogError(msg) }
+
+func logConcurrencyPlanning(limit, total int) { ilogger.LogConcurrencyPlanning(limit, total) }
+
+func logConcurrencyState(event, taskID string, active, limit int) {
+	ilogger.LogConcurrencyState(event, taskID, active, limit)
+}
+
+func parseJSONStreamInternal(r io.Reader, warnFn func(string), infoFn func(string), onMessage func(), onComplete func()) (message, threadID string) {
+	return parser.ParseJSONStreamInternal(r, warnFn, infoFn, onMessage, onComplete)
+}
+
+func sanitizeOutput(s string) string { return utils.SanitizeOutput(s) }
+
+func safeTruncate(s string, maxLen int) string { return utils.SafeTruncate(s, maxLen) }
+
+func min(a, b int) int { return utils.Min(a, b) }

 // commandRunner abstracts exec.Cmd for testability
 type commandRunner interface {
 	Start() error
 	Wait() error
 	StdoutPipe() (io.ReadCloser, error)
+	StderrPipe() (io.ReadCloser, error)
 	StdinPipe() (io.WriteCloser, error)
 	SetStderr(io.Writer)
 	SetDir(string)
@@ -63,6 +146,13 @@ func (r *realCmd) StdoutPipe() (io.ReadCloser, error) {
 	return r.cmd.StdoutPipe()
 }

+func (r *realCmd) StderrPipe() (io.ReadCloser, error) {
+	if r.cmd == nil {
+		return nil, errors.New("command is nil")
+	}
+	return r.cmd.StderrPipe()
+}
+
 func (r *realCmd) StdinPipe() (io.WriteCloser, error) {
 	if r.cmd == nil {
 		return nil, errors.New("command is nil")
@@ -221,14 +311,21 @@ func newTaskLoggerHandle(taskID string) taskLoggerHandle {
 }

 // defaultRunCodexTaskFn is the default implementation of runCodexTaskFn (exposed for test reset)
-func defaultRunCodexTaskFn(task TaskSpec, timeout int) TaskResult {
+func DefaultRunCodexTaskFn(task TaskSpec, timeout int) TaskResult {
 	if task.WorkDir == "" {
 		task.WorkDir = defaultWorkdir
 	}
 	if task.Mode == "" {
 		task.Mode = "new"
 	}
-	if task.UseStdin || shouldUseStdin(task.Task, false) {
+	if strings.TrimSpace(task.PromptFile) != "" {
+		prompt, err := ReadAgentPromptFile(task.PromptFile, false)
+		if err != nil {
+			return TaskResult{TaskID: task.ID, ExitCode: 1, Error: "failed to read prompt file: " + err.Error()}
+		}
+		task.Task = WrapTaskWithAgentPrompt(prompt, task.Task)
+	}
+	if task.UseStdin || ShouldUseStdin(task.Task, false) {
 		task.UseStdin = true
 	}

@@ -247,12 +344,10 @@ func defaultRunCodexTaskFn(task TaskSpec, timeout int) TaskResult {
 	if parentCtx == nil {
 		parentCtx = context.Background()
 	}
-	return runCodexTaskWithContext(parentCtx, task, backend, nil, false, true, timeout)
+	return RunCodexTaskWithContext(parentCtx, task, backend, "", nil, nil, false, true, timeout)
 }

-var runCodexTaskFn = defaultRunCodexTaskFn
-
-func topologicalSort(tasks []TaskSpec) ([][]TaskSpec, error) {
+func TopologicalSort(tasks []TaskSpec) ([][]TaskSpec, error) {
 	idToTask := make(map[string]TaskSpec, len(tasks))
 	indegree := make(map[string]int, len(tasks))
 	adj := make(map[string][]string, len(tasks))
@@ -318,12 +413,16 @@ func topologicalSort(tasks []TaskSpec) ([][]TaskSpec, error) {
 	return layers, nil
 }

-func executeConcurrent(layers [][]TaskSpec, timeout int) []TaskResult {
-	maxWorkers := resolveMaxParallelWorkers()
-	return executeConcurrentWithContext(context.Background(), layers, timeout, maxWorkers)
+func ExecuteConcurrent(layers [][]TaskSpec, timeout int, runTask func(TaskSpec, int) TaskResult) []TaskResult {
+	maxWorkers := config.ResolveMaxParallelWorkers()
+	return ExecuteConcurrentWithContext(context.Background(), layers, timeout, maxWorkers, runTask)
 }

-func executeConcurrentWithContext(parentCtx context.Context, layers [][]TaskSpec, timeout int, maxWorkers int) []TaskResult {
+func ExecuteConcurrentWithContext(parentCtx context.Context, layers [][]TaskSpec, timeout int, maxWorkers int, runTask func(TaskSpec, int) TaskResult) []TaskResult {
+	if runTask == nil {
+		runTask = DefaultRunCodexTaskFn
+	}
+
 	totalTasks := 0
 	for _, layer := range layers {
 		totalTasks += len(layer)
@@ -454,7 +553,7 @@ func executeConcurrentWithContext(parentCtx context.Context, layers [][]TaskSpec

 				printTaskStart(ts.ID, taskLogPath, handle.shared)

-				res := runCodexTaskFn(ts, timeout)
+				res := runTask(ts, timeout)
 				if taskLogPath != "" {
 					if res.LogPath == "" || (handle.shared && handle.logger != nil && res.LogPath == handle.logger.Path()) {
 						res.LogPath = taskLogPath
@@ -519,14 +618,14 @@ func getStatusSymbols() (success, warning, failed string) {
 	return "✓", "⚠️", "✗"
 }

-func generateFinalOutput(results []TaskResult) string {
-	return generateFinalOutputWithMode(results, true) // default to summary mode
+func GenerateFinalOutput(results []TaskResult) string {
+	return GenerateFinalOutputWithMode(results, true) // default to summary mode
 }

 // generateFinalOutputWithMode generates output based on mode
 // summaryOnly=true: structured report - every token has value
 // summaryOnly=false: full output with complete messages (legacy behavior)
-func generateFinalOutputWithMode(results []TaskResult, summaryOnly bool) string {
+func GenerateFinalOutputWithMode(results []TaskResult, summaryOnly bool) string {
 	var sb strings.Builder
 	successSymbol, warningSymbol, failedSymbol := getStatusSymbols()

@@ -739,11 +838,20 @@ func buildCodexArgs(cfg *Config, targetArg string) []string {

 	args := []string{"e"}

-	if envFlagEnabled("CODEX_BYPASS_SANDBOX") {
-		logWarn("CODEX_BYPASS_SANDBOX=true: running without approval/sandbox protection")
+	// Default to bypass sandbox unless CODEX_BYPASS_SANDBOX=false
+	if cfg.Yolo || config.EnvFlagDefaultTrue("CODEX_BYPASS_SANDBOX") {
+		logWarn("YOLO mode or CODEX_BYPASS_SANDBOX enabled: running without approval/sandbox protection")
 		args = append(args, "--dangerously-bypass-approvals-and-sandbox")
 	}

+	if model := strings.TrimSpace(cfg.Model); model != "" {
+		args = append(args, "--model", model)
+	}
+
+	if reasoningEffort := strings.TrimSpace(cfg.ReasoningEffort); reasoningEffort != "" {
+		args = append(args, "-c", "model_reasoning_effort="+reasoningEffort)
+	}
+
 	args = append(args, "--skip-git-repo-check")

 	if isResume {
@@ -762,37 +870,41 @@ func buildCodexArgs(cfg *Config, targetArg string) []string {
 	)
 }

-func runCodexTask(taskSpec TaskSpec, silent bool, timeoutSec int) TaskResult {
-	return runCodexTaskWithContext(context.Background(), taskSpec, nil, nil, false, silent, timeoutSec)
-}
-
-func runCodexProcess(parentCtx context.Context, codexArgs []string, taskText string, useStdin bool, timeoutSec int) (message, threadID string, exitCode int) {
-	res := runCodexTaskWithContext(parentCtx, TaskSpec{Task: taskText, WorkDir: defaultWorkdir, Mode: "new", UseStdin: useStdin}, nil, codexArgs, true, false, timeoutSec)
-	return res.Message, res.SessionID, res.ExitCode
-}
-
-func runCodexTaskWithContext(parentCtx context.Context, taskSpec TaskSpec, backend Backend, customArgs []string, useCustomArgs bool, silent bool, timeoutSec int) TaskResult {
+func RunCodexTaskWithContext(parentCtx context.Context, taskSpec TaskSpec, backend Backend, defaultCommandName string, defaultArgsBuilder func(*Config, string) []string, customArgs []string, useCustomArgs bool, silent bool, timeoutSec int) TaskResult {
+	taskCtx := taskSpec.Context
 	if parentCtx == nil {
-		parentCtx = taskSpec.Context
+		parentCtx = taskCtx
 	}
 	if parentCtx == nil {
 		parentCtx = context.Background()
 	}

 	result := TaskResult{TaskID: taskSpec.ID}
-	injectedLogger := taskLoggerFromContext(parentCtx)
+	injectedLogger := taskLoggerFromContext(taskCtx)
+	if injectedLogger == nil {
+		injectedLogger = taskLoggerFromContext(parentCtx)
+	}
 	logger := injectedLogger

 	cfg := &Config{
-		Mode:      taskSpec.Mode,
-		Task:      taskSpec.Task,
-		SessionID: taskSpec.SessionID,
-		WorkDir:   taskSpec.WorkDir,
-		Backend:   defaultBackendName,
+		Mode:            taskSpec.Mode,
+		Task:            taskSpec.Task,
+		SessionID:       taskSpec.SessionID,
+		WorkDir:         taskSpec.WorkDir,
+		Model:           taskSpec.Model,
+		ReasoningEffort: taskSpec.ReasoningEffort,
+		SkipPermissions: taskSpec.SkipPermissions,
+		Backend:         defaultBackendName,
 	}

-	commandName := codexCommand
-	argsBuilder := buildCodexArgsFn
+	commandName := strings.TrimSpace(defaultCommandName)
+	if commandName == "" {
+		commandName = defaultBackendName
+	}
+	argsBuilder := defaultArgsBuilder
+	if argsBuilder == nil {
+		argsBuilder = buildCodexArgs
+	}
 	if backend != nil {
 		commandName = backend.Command()
 		argsBuilder = backend.BuildArgs
@@ -816,6 +928,25 @@ func runCodexTaskWithContext(parentCtx context.Context, taskSpec TaskSpec, backe
 		return result
 	}

+	var fileEnv map[string]string
+	if cfg.Backend == "claude" {
+		settings := loadMinimalClaudeSettings()
+		fileEnv = settings.Env
+		if cfg.Mode != "resume" && strings.TrimSpace(cfg.Model) == "" && settings.Model != "" {
+			cfg.Model = settings.Model
+		}
+	}
+
+	// Load gemini env from ~/.gemini/.env if exists
+	if cfg.Backend == "gemini" {
+		fileEnv = loadGeminiEnv()
+		if cfg.Mode != "resume" && strings.TrimSpace(cfg.Model) == "" {
+			if model := fileEnv["GEMINI_MODEL"]; model != "" {
+				cfg.Model = model
+			}
+		}
+	}
+
 	useStdin := taskSpec.UseStdin
 	targetArg := taskSpec.Task
 	if useStdin {
@@ -915,9 +1046,33 @@ func runCodexTaskWithContext(parentCtx context.Context, taskSpec TaskSpec, backe

 	cmd := newCommandRunner(ctx, commandName, codexArgs...)

-	if cfg.Backend == "claude" {
-		if env := loadMinimalEnvSettings(); len(env) > 0 {
-			cmd.SetEnv(env)
+	if len(fileEnv) > 0 {
+		cmd.SetEnv(fileEnv)
+	}
+
+	envBackend := backend
+	if envBackend == nil && cfg.Backend != "" {
+		if b, err := selectBackendFn(cfg.Backend); err == nil {
+			envBackend = b
+		}
+	}
+
+	if envBackend != nil {
+		baseURL, apiKey := config.ResolveBackendConfig(cfg.Backend)
+		if agentName := strings.TrimSpace(taskSpec.Agent); agentName != "" {
+			agentBackend, _, _, _, agentBaseURL, agentAPIKey, _ := config.ResolveAgentConfig(agentName)
+			if strings.EqualFold(strings.TrimSpace(agentBackend), strings.TrimSpace(cfg.Backend)) {
+				baseURL, apiKey = agentBaseURL, agentAPIKey
+			}
+		}
+		if injected := envBackend.Env(baseURL, apiKey); len(injected) > 0 {
+			cmd.SetEnv(injected)
+			// Log injected env vars with masked API keys (to file and stderr)
+			for k, v := range injected {
+				msg := fmt.Sprintf("Env: %s=%s", k, maskSensitiveValue(k, v))
+				logInfoFn(msg)
+				fmt.Fprintln(os.Stderr, "  "+msg)
+			}
 		}
 	}

@@ -939,33 +1094,43 @@ func runCodexTaskWithContext(parentCtx context.Context, taskSpec TaskSpec, backe
 		if cfg.Backend == "gemini" {
 			stderrFilter = newFilteringWriter(os.Stderr, geminiNoisePatterns)
 			stderrOut = stderrFilter
-			defer stderrFilter.Flush()
+		} else if cfg.Backend == "codex" {
+			stderrFilter = newFilteringWriter(os.Stderr, codexNoisePatterns)
+			stderrOut = stderrFilter
 		}
 		stderrWriters = append([]io.Writer{stderrOut}, stderrWriters...)
 	}
-	if len(stderrWriters) == 1 {
-		cmd.SetStderr(stderrWriters[0])
-	} else {
-		cmd.SetStderr(io.MultiWriter(stderrWriters...))
+	stderr, err := cmd.StderrPipe()
+	if err != nil {
+		logErrorFn("Failed to create stderr pipe: " + err.Error())
+		result.ExitCode = 1
+		result.Error = attachStderr("failed to create stderr pipe: " + err.Error())
+		return result
 	}

 	var stdinPipe io.WriteCloser
-	var err error
 	if useStdin {
 		stdinPipe, err = cmd.StdinPipe()
 		if err != nil {
 			logErrorFn("Failed to create stdin pipe: " + err.Error())
 			result.ExitCode = 1
 			result.Error = attachStderr("failed to create stdin pipe: " + err.Error())
+			closeWithReason(stderr, "stdin-pipe-failed")
 			return result
 		}
 	}

+	stderrDone := make(chan error, 1)
+
 	stdout, err := cmd.StdoutPipe()
 	if err != nil {
 		logErrorFn("Failed to create stdout pipe: " + err.Error())
 		result.ExitCode = 1
 		result.Error = attachStderr("failed to create stdout pipe: " + err.Error())
+		closeWithReason(stderr, "stdout-pipe-failed")
+		if stdinPipe != nil {
+			_ = stdinPipe.Close()
+		}
 		return result
 	}

@@ -1001,6 +1166,11 @@ func runCodexTaskWithContext(parentCtx context.Context, taskSpec TaskSpec, backe
 	logInfoFn(fmt.Sprintf("Starting %s with args: %s %s...", commandName, commandName, strings.Join(codexArgs[:min(5, len(codexArgs))], " ")))

 	if err := cmd.Start(); err != nil {
+		closeWithReason(stdout, "start-failed")
+		closeWithReason(stderr, "start-failed")
+		if stdinPipe != nil {
+			_ = stdinPipe.Close()
+		}
 		if strings.Contains(err.Error(), "executable file not found") {
 			msg := fmt.Sprintf("%s command not found in PATH", commandName)
 			logErrorFn(msg)
@@ -1019,6 +1189,15 @@ func runCodexTaskWithContext(parentCtx context.Context, taskSpec TaskSpec, backe
 		logInfoFn(fmt.Sprintf("Log capturing to: %s", logger.Path()))
 	}

+	// Start stderr drain AFTER we know the command started, but BEFORE cmd.Wait can close the pipe.
+	go func() {
+		_, copyErr := io.Copy(io.MultiWriter(stderrWriters...), stderr)
+		if stderrFilter != nil {
+			stderrFilter.Flush()
+		}
+		stderrDone <- copyErr
+	}()
+
 	if useStdin && stdinPipe != nil {
 		logInfoFn(fmt.Sprintf("Writing %d chars to stdin...", len(taskSpec.Task)))
 		go func(data string) {
@@ -1046,7 +1225,8 @@ func runCodexTaskWithContext(parentCtx context.Context, taskSpec TaskSpec, backe
 waitLoop:
 	for {
 		select {
-		case waitErr = <-waitCh:
+		case err := <-waitCh:
+			waitErr = err
 			break waitLoop
 		case <-ctx.Done():
 			ctxCancelled = true
@@ -1057,8 +1237,17 @@ waitLoop:
 					terminated = true
 				}
 			}
-			waitErr = <-waitCh
-			break waitLoop
+			for {
+				select {
+				case err := <-waitCh:
+					waitErr = err
+					break waitLoop
+				case <-time.After(forceKillWaitTimeout):
+					if proc := cmd.Process(); proc != nil {
+						_ = proc.Kill()
+					}
+				}
+			}
 		case <-messageTimerCh:
 			forcedAfterComplete = true
 			messageTimerCh = nil
@@ -1069,6 +1258,20 @@ waitLoop:
 					terminated = true
 				}
 			}
+			// Close pipes to unblock stream readers, then wait for process exit.
+			closeWithReason(stdout, "terminate")
+			closeWithReason(stderr, "terminate")
+			for {
+				select {
+				case err := <-waitCh:
+					waitErr = err
+					break waitLoop
+				case <-time.After(forceKillWaitTimeout):
+					if proc := cmd.Process(); proc != nil {
+						_ = proc.Kill()
+					}
+				}
+			}
 		case <-completeSeen:
 			completeSeenObserved = true
 			if messageTimer != nil {
@@ -1110,11 +1313,9 @@ waitLoop:
 		case parsed = <-parseCh:
 			closeWithReason(stdout, stdoutCloseReasonWait)
 		case <-messageSeen:
-			messageSeenObserved = true
 			closeWithReason(stdout, stdoutCloseReasonWait)
 			parsed = <-parseCh
 		case <-completeSeen:
-			completeSeenObserved = true
 			closeWithReason(stdout, stdoutCloseReasonWait)
 			parsed = <-parseCh
 		case <-drainTimer.C:
@@ -1123,6 +1324,12 @@ waitLoop:
 		}
 	}

+	closeWithReason(stderr, stdoutCloseReasonWait)
+	// Wait for stderr drain so stderrBuf / stderrLogger are not accessed concurrently.
+	// Important: cmd.Wait can block on internal stderr copying if cmd.Stderr is a non-file writer.
+	// We use StderrPipe and drain ourselves to avoid that deadlock class (common when children inherit pipes).
+	<-stderrDone
+
 	if ctxErr := ctx.Err(); ctxErr != nil {
 		if errors.Is(ctxErr, context.DeadlineExceeded) {
 			result.ExitCode = 124
@@ -1178,44 +1385,13 @@ waitLoop:
 	return result
 }

-func forwardSignals(ctx context.Context, cmd commandRunner, logErrorFn func(string)) {
-	notify := signalNotifyFn
-	stop := signalStopFn
-	if notify == nil {
-		notify = signal.Notify
-	}
-	if stop == nil {
-		stop = signal.Stop
-	}
-
-	sigCh := make(chan os.Signal, 1)
-	notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
-
-	go func() {
-		defer stop(sigCh)
-		select {
-		case sig := <-sigCh:
-			logErrorFn(fmt.Sprintf("Received signal: %v", sig))
-			if proc := cmd.Process(); proc != nil {
-				_ = proc.Signal(syscall.SIGTERM)
-				time.AfterFunc(time.Duration(forceKillDelay.Load())*time.Second, func() {
-					if p := cmd.Process(); p != nil {
-						_ = p.Kill()
-					}
-				})
-			}
-		case <-ctx.Done():
-		}
-	}()
-}
-
 func cancelReason(commandName string, ctx context.Context) string {
 	if ctx == nil {
 		return "Context cancelled"
 	}

 	if commandName == "" {
-		commandName = codexCommand
+		commandName = defaultBackendName
 	}

 	if errors.Is(ctx.Err(), context.DeadlineExceeded) {
@@ -1267,7 +1443,7 @@ func terminateCommand(cmd commandRunner) *forceKillTimer {
 		return nil
 	}

-	_ = proc.Signal(syscall.SIGTERM)
+	_ = sendTermSignal(proc)

 	done := make(chan struct{}, 1)
 	timer := time.AfterFunc(time.Duration(forceKillDelay.Load())*time.Second, func() {
@@ -1280,20 +1456,18 @@ func terminateCommand(cmd commandRunner) *forceKillTimer {
 	return &forceKillTimer{timer: timer, done: done}
 }

-func terminateProcess(cmd commandRunner) *time.Timer {
-	if cmd == nil {
-		return nil
-	}
-	proc := cmd.Process()
-	if proc == nil {
-		return nil
-	}
-
-	_ = proc.Signal(syscall.SIGTERM)
-
-	return time.AfterFunc(time.Duration(forceKillDelay.Load())*time.Second, func() {
-		if p := cmd.Process(); p != nil {
-			_ = p.Kill()
+// maskSensitiveValue masks sensitive values like API keys for logging.
+// Values containing "key", "token", or "secret" (case-insensitive) are masked.
+// For values longer than 8 chars: shows first 4 + **** + last 4.
+// For shorter values: shows only ****.
+func maskSensitiveValue(key, value string) string {
+	keyLower := strings.ToLower(key)
+	if strings.Contains(keyLower, "key") || strings.Contains(keyLower, "token") || strings.Contains(keyLower, "secret") {
+		if len(value) > 8 {
+			return value[:4] + "****" + value[len(value)-4:]
+		} else if len(value) > 0 {
+			return "****"
 		}
-	})
+	}
+	return value
 }
--- a/codeagent-wrapper/internal/executor/filter.go
+++ b/codeagent-wrapper/internal/executor/filter.go
@@ -1,4 +1,4 @@
-package main
+package executor

 import (
 	"bytes"
@@ -18,6 +18,12 @@ var geminiNoisePatterns = []string{
 	"YOLO mode is enabled",
 }

+// codexNoisePatterns contains stderr patterns to filter for codex backend
+var codexNoisePatterns = []string{
+	"ERROR codex_core::codex: needs_follow_up:",
+	"ERROR codex_core::skills::loader:",
+}
+
 // filteringWriter wraps an io.Writer and filters out lines matching patterns
 type filteringWriter struct {
 	w        io.Writer
@@ -39,7 +45,7 @@ func (f *filteringWriter) Write(p []byte) (n int, err error) {
 			break
 		}
 		if !f.shouldFilter(line) {
-			f.w.Write([]byte(line))
+			_, _ = f.w.Write([]byte(line))
 		}
 	}
 	return len(p), nil
@@ -59,7 +65,7 @@ func (f *filteringWriter) Flush() {
 	if f.buf.Len() > 0 {
 		remaining := f.buf.String()
 		if !f.shouldFilter(remaining) {
-			f.w.Write([]byte(remaining))
+			_, _ = f.w.Write([]byte(remaining))
 		}
 		f.buf.Reset()
 	}
--- a/codeagent-wrapper/internal/executor/filter_test.go
+++ b/codeagent-wrapper/internal/executor/filter_test.go
@@ -1,4 +1,4 @@
-package main
+package executor

 import (
 	"bytes"
@@ -48,7 +48,7 @@ func TestFilteringWriter(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			var buf bytes.Buffer
 			fw := newFilteringWriter(&buf, tt.patterns)
-			fw.Write([]byte(tt.input))
+			_, _ = fw.Write([]byte(tt.input))
 			fw.Flush()

 			if got := buf.String(); got != tt.want {
@@ -63,8 +63,8 @@ func TestFilteringWriterPartialLines(t *testing.T) {
 	fw := newFilteringWriter(&buf, geminiNoisePatterns)

 	// Write partial line
-	fw.Write([]byte("Hello "))
-	fw.Write([]byte("World\n"))
+	_, _ = fw.Write([]byte("Hello "))
+	_, _ = fw.Write([]byte("World\n"))
 	fw.Flush()

 	if got := buf.String(); got != "Hello World\n" {
--- a/codeagent-wrapper/internal/executor/log_helpers.go
+++ b/codeagent-wrapper/internal/executor/log_helpers.go
@@ -0,0 +1,124 @@
+package executor
+
+import "bytes"
+
+type logWriter struct {
+	prefix  string
+	maxLen  int
+	buf     bytes.Buffer
+	dropped bool
+}
+
+func newLogWriter(prefix string, maxLen int) *logWriter {
+	if maxLen <= 0 {
+		maxLen = codexLogLineLimit
+	}
+	return &logWriter{prefix: prefix, maxLen: maxLen}
+}
+
+func (lw *logWriter) Write(p []byte) (int, error) {
+	if lw == nil {
+		return len(p), nil
+	}
+	total := len(p)
+	for len(p) > 0 {
+		if idx := bytes.IndexByte(p, '\n'); idx >= 0 {
+			lw.writeLimited(p[:idx])
+			lw.logLine(true)
+			p = p[idx+1:]
+			continue
+		}
+		lw.writeLimited(p)
+		break
+	}
+	return total, nil
+}
+
+func (lw *logWriter) Flush() {
+	if lw == nil || lw.buf.Len() == 0 {
+		return
+	}
+	lw.logLine(false)
+}
+
+func (lw *logWriter) logLine(force bool) {
+	if lw == nil {
+		return
+	}
+	line := lw.buf.String()
+	dropped := lw.dropped
+	lw.dropped = false
+	lw.buf.Reset()
+	if line == "" && !force {
+		return
+	}
+	if lw.maxLen > 0 {
+		if dropped {
+			if lw.maxLen > 3 {
+				line = line[:min(len(line), lw.maxLen-3)] + "..."
+			} else {
+				line = line[:min(len(line), lw.maxLen)]
+			}
+		} else if len(line) > lw.maxLen {
+			cutoff := lw.maxLen
+			if cutoff > 3 {
+				line = line[:cutoff-3] + "..."
+			} else {
+				line = line[:cutoff]
+			}
+		}
+	}
+	logInfo(lw.prefix + line)
+}
+
+func (lw *logWriter) writeLimited(p []byte) {
+	if lw == nil || len(p) == 0 {
+		return
+	}
+	if lw.maxLen <= 0 {
+		lw.buf.Write(p)
+		return
+	}
+
+	remaining := lw.maxLen - lw.buf.Len()
+	if remaining <= 0 {
+		lw.dropped = true
+		return
+	}
+	if len(p) <= remaining {
+		lw.buf.Write(p)
+		return
+	}
+	lw.buf.Write(p[:remaining])
+	lw.dropped = true
+}
+
+type tailBuffer struct {
+	limit int
+	data  []byte
+}
+
+func (b *tailBuffer) Write(p []byte) (int, error) {
+	if b.limit <= 0 {
+		return len(p), nil
+	}
+
+	if len(p) >= b.limit {
+		b.data = append(b.data[:0], p[len(p)-b.limit:]...)
+		return len(p), nil
+	}
+
+	total := len(b.data) + len(p)
+	if total <= b.limit {
+		b.data = append(b.data, p...)
+		return len(p), nil
+	}
+
+	overflow := total - b.limit
+	b.data = append(b.data[overflow:], p...)
+	return len(p), nil
+}
+
+func (b *tailBuffer) String() string {
+	return string(b.data)
+}
--- a/codeagent-wrapper/internal/executor/log_writer_limit_test.go
+++ b/codeagent-wrapper/internal/executor/log_writer_limit_test.go
@@ -1,4 +1,4 @@
-package main
+package executor

 import (
 	"os"
@@ -7,14 +7,12 @@ import (
 )

 func TestLogWriterWriteLimitsBuffer(t *testing.T) {
-	defer resetTestHooks()
-
 	logger, err := NewLogger()
 	if err != nil {
 		t.Fatalf("NewLogger error: %v", err)
 	}
 	setLogger(logger)
-	defer closeLogger()
+	t.Cleanup(func() { _ = closeLogger() })

 	lw := newLogWriter("P:", 10)
 	_, _ = lw.Write([]byte(strings.Repeat("a", 100)))
@@ -36,4 +34,3 @@ func TestLogWriterWriteLimitsBuffer(t *testing.T) {
 		t.Fatalf("log output missing truncated entry, got %q", string(data))
 	}
 }
-
--- a/codeagent-wrapper/internal/executor/parallel_config.go
+++ b/codeagent-wrapper/internal/executor/parallel_config.go
@@ -0,0 +1,135 @@
+package executor
+
+import (
+	"bytes"
+	"fmt"
+	"strings"
+
+	config "codeagent-wrapper/internal/config"
+)
+
+func ParseParallelConfig(data []byte) (*ParallelConfig, error) {
+	trimmed := bytes.TrimSpace(data)
+	if len(trimmed) == 0 {
+		return nil, fmt.Errorf("parallel config is empty")
+	}
+
+	tasks := strings.Split(string(trimmed), "---TASK---")
+	var cfg ParallelConfig
+	seen := make(map[string]struct{})
+
+	taskIndex := 0
+	for _, taskBlock := range tasks {
+		taskBlock = strings.TrimSpace(taskBlock)
+		if taskBlock == "" {
+			continue
+		}
+		taskIndex++
+
+		parts := strings.SplitN(taskBlock, "---CONTENT---", 2)
+		if len(parts) != 2 {
+			return nil, fmt.Errorf("task block #%d missing ---CONTENT--- separator", taskIndex)
+		}
+
+		meta := strings.TrimSpace(parts[0])
+		content := strings.TrimSpace(parts[1])
+
+		task := TaskSpec{WorkDir: defaultWorkdir}
+		agentSpecified := false
+		for _, line := range strings.Split(meta, "\n") {
+			line = strings.TrimSpace(line)
+			if line == "" {
+				continue
+			}
+			kv := strings.SplitN(line, ":", 2)
+			if len(kv) != 2 {
+				continue
+			}
+			key := strings.TrimSpace(kv[0])
+			value := strings.TrimSpace(kv[1])
+
+			switch key {
+			case "id":
+				task.ID = value
+			case "workdir":
+				// Validate workdir: "-" is not a valid directory
+				if value == "-" {
+					return nil, fmt.Errorf("task block #%d has invalid workdir: '-' is not a valid directory path", taskIndex)
+				}
+				task.WorkDir = value
+			case "session_id":
+				task.SessionID = value
+				task.Mode = "resume"
+			case "backend":
+				task.Backend = value
+			case "model":
+				task.Model = value
+			case "reasoning_effort":
+				task.ReasoningEffort = value
+			case "agent":
+				agentSpecified = true
+				task.Agent = value
+			case "skip_permissions", "skip-permissions":
+				if value == "" {
+					task.SkipPermissions = true
+					continue
+				}
+				task.SkipPermissions = config.ParseBoolFlag(value, false)
+			case "dependencies":
+				for _, dep := range strings.Split(value, ",") {
+					dep = strings.TrimSpace(dep)
+					if dep != "" {
+						task.Dependencies = append(task.Dependencies, dep)
+					}
+				}
+			}
+		}
+
+		if task.Mode == "" {
+			task.Mode = "new"
+		}
+
+		if agentSpecified {
+			if strings.TrimSpace(task.Agent) == "" {
+				return nil, fmt.Errorf("task block #%d has empty agent field", taskIndex)
+			}
+			if err := config.ValidateAgentName(task.Agent); err != nil {
+				return nil, fmt.Errorf("task block #%d invalid agent name: %w", taskIndex, err)
+			}
+			backend, model, promptFile, reasoning, _, _, _ := config.ResolveAgentConfig(task.Agent)
+			if task.Backend == "" {
+				task.Backend = backend
+			}
+			if task.Model == "" {
+				task.Model = model
+			}
+			if task.ReasoningEffort == "" {
+				task.ReasoningEffort = reasoning
+			}
+			task.PromptFile = promptFile
+		}
+
+		if task.ID == "" {
+			return nil, fmt.Errorf("task block #%d missing id field", taskIndex)
+		}
+		if content == "" {
+			return nil, fmt.Errorf("task block #%d (%q) missing content", taskIndex, task.ID)
+		}
+		if task.Mode == "resume" && strings.TrimSpace(task.SessionID) == "" {
+			return nil, fmt.Errorf("task block #%d (%q) has empty session_id", taskIndex, task.ID)
+		}
+		if _, exists := seen[task.ID]; exists {
+			return nil, fmt.Errorf("task block #%d has duplicate id: %s", taskIndex, task.ID)
+		}
+
+		task.Task = content
+		cfg.Tasks = append(cfg.Tasks, task)
+		seen[task.ID] = struct{}{}
+	}
+
+	if len(cfg.Tasks) == 0 {
+		return nil, fmt.Errorf("no tasks found")
+	}
+
+	return &cfg, nil
+}
--- a/Show More
+++ b/Show More