feat: 增强 command-guide skill 支持深度命令分析和 CLI 辅助查询

新增 Mode 6: 深度命令分析
- 创建 reference 备份目录（80个文档：11 agents + 69 commands）
- 支持简单查询（直接文件查找）和复杂查询（CLI 辅助分析）
- 集成 gemini/qwen 进行跨命令对比、最佳实践、工作流分析
- 添加查询复杂度自动分类和降级策略

更新文档
- SKILL.md: 添加 Mode 6 说明和 Reference Documentation 章节
- implementation-details.md: 添加完整的 Mode 6 实现逻辑
- 版本更新至 v1.3.0

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/skills/command-guide/reference/commands/cli/chat.md

@@ -0,0 +1,125 @@
+---
+name: chat
+description: Read-only Q&A interaction with Gemini/Qwen/Codex for codebase questions with automatic context inference
+argument-hint: "[--agent] [--tool codex|gemini|qwen] [--enhance] inquiry"
+allowed-tools: SlashCommand(*), Bash(*), Task(*)
+---
+
+# CLI Chat Command (/cli:chat)
+
+## Purpose
+
+Direct Q&A interaction with CLI tools for codebase analysis. **Read-only - does NOT modify code**.
+
+**Tool Selection**:
+- **gemini** (default) - Best for Q&A and explanations
+- **qwen** - Fallback when Gemini unavailable
+- **codex** - Alternative for technical deep-dives
+
+## Parameters
+
+- `--tool <gemini|qwen|codex>` - Tool selection (default: gemini)
+- `--agent` - Use cli-execution-agent for automated context discovery
+- `--enhance` - Enhance inquiry with `/enhance-prompt`
+- `<inquiry>` (Required) - Question or analysis request
+
+## Tool Usage
+
+**Gemini** (Primary):
+```bash
+--tool gemini  # or omit (default)
+```
+
+**Qwen** (Fallback):
+```bash
+--tool qwen
+```
+
+**Codex** (Alternative):
+```bash
+--tool codex
+```
+
+## Execution Flow
+
+### Standard Mode
+1. Parse tool selection (default: gemini)
+2. Optional: enhance with `/enhance-prompt`
+3. Assemble context: `@CLAUDE.md` + inferred files
+4. Execute Q&A (read-only)
+5. Return answer
+
+### Agent Mode (`--agent`)
+
+Delegates to agent for intelligent Q&A:
+
+```javascript
+Task(
+  subagent_type="cli-execution-agent",
+  description="Codebase Q&A",
+  prompt=`
+    Task: ${inquiry}
+    Mode: chat (Q&A)
+    Tool: ${tool_flag || 'auto-select'}  // gemini|qwen|codex
+    Enhance: ${enhance_flag || false}
+
+    Agent responsibilities:
+    1. Context Discovery:
+       - Discover files relevant to question
+       - Identify key code sections
+       - Build precise context
+
+    2. CLI Command Generation:
+       - Build Gemini/Qwen/Codex command
+       - Include discovered context
+       - Apply Q&A template
+
+    3. Execution & Output:
+       - Execute Q&A analysis
+       - Generate detailed answer
+       - Save to .workflow/.chat/ or .scratchpad/
+  `
+)
+```
+
+## Core Rules
+
+- **Read-only**: Provides answers, does NOT modify code
+- **Context**: `@CLAUDE.md` + inferred or all files (`@**/*`)
+- **Output**: Saves to `.workflow/WFS-[id]/.chat/` or `.scratchpad/`
+
+## CLI Command Templates
+
+**Gemini/Qwen**:
+```bash
+cd . && gemini -p "
+PURPOSE: Answer question
+TASK: [inquiry]
+MODE: analysis
+CONTEXT: @CLAUDE.md [inferred or @**/*]
+EXPECTED: Clear answer
+RULES: Focus on accuracy
+"
+# Qwen: Replace 'gemini' with 'qwen'
+```
+
+**Codex**:
+```bash
+codex -C . --full-auto exec "
+PURPOSE: Answer question
+TASK: [inquiry]
+MODE: analysis
+CONTEXT: @CLAUDE.md [inferred or @**/*]
+EXPECTED: Detailed answer
+RULES: Technical depth
+" -m gpt-5 --skip-git-repo-check -s danger-full-access
+```
+
+## Output
+
+- **With session**: `.workflow/WFS-[id]/.chat/chat-[timestamp].md`
+- **No session**: `.workflow/.scratchpad/chat-[desc]-[timestamp].md`
+
+## Notes
+
+- See `intelligent-tools-strategy.md` for detailed tool usage and templates