Add comprehensive workflows for CLI tools usage, coding philosophy, context requirements, file modification, and CodexLens auto hybrid mode

- Introduced a detailed guide for intelligent tools selection strategy, including quick reference, tool specifications, prompt templates, and best practices for CLI execution.
- Established a coding philosophy document outlining core beliefs, simplicity principles, and guidelines for effective coding practices.
- Created context requirements documentation emphasizing the importance of understanding existing patterns and dependencies before implementation.
- Developed a file modification workflow detailing the use of edit_file and write_file MCP tools, along with priority logic for file reading and editing.
- Implemented CodexLens auto hybrid mode, enhancing the CLI with automatic vector embedding generation and default hybrid search mode based on embedding availability.

.claude/agents/action-planning-agent.md

@@ -542,8 +542,8 @@ The `implementation_approach` supports **two execution modes** based on the pres
    - **Use for**: Large-scale features, complex refactoring, or when user explicitly requests CLI tool usage
    - **Required fields**: Same as default mode **PLUS** `command`, `resume_from` (optional)
    - **Command patterns** (with resume support):
-     - `ccw cli exec '[prompt]' --tool codex --mode auto --cd [path]`
-     - `ccw cli exec '[prompt]' --resume ${previousCliId} --tool codex --mode auto` (resume from previous)
+     - `ccw cli exec '[prompt]' --tool codex --mode write --cd [path]`
+     - `ccw cli exec '[prompt]' --resume ${previousCliId} --tool codex --mode write` (resume from previous)
      - `ccw cli exec '[prompt]' --tool gemini --mode write --cd [path]` (write mode)
    - **Resume mechanism**: When step depends on previous CLI execution, include `--resume` with previous execution ID
 
@@ -621,7 +621,7 @@ Agent determines CLI tool usage per-step based on user semantics and task nature
     "step": 3,
     "title": "Execute implementation using CLI tool",
     "description": "Use Codex/Gemini for complex autonomous execution",
-    "command": "ccw cli exec '[prompt]' --tool codex --mode auto --cd [path]",
+    "command": "ccw cli exec '[prompt]' --tool codex --mode write --cd [path]",
     "modification_points": ["[Same as default mode]"],
     "logic_flow": ["[Same as default mode]"],
     "depends_on": [1, 2],
@@ -634,7 +634,7 @@ Agent determines CLI tool usage per-step based on user semantics and task nature
     "step": 4,
     "title": "Continue implementation with context",
     "description": "Resume from previous step with accumulated context",
-    "command": "ccw cli exec '[continuation prompt]' --resume ${step3_cli_id} --tool codex --mode auto",
+    "command": "ccw cli exec '[continuation prompt]' --resume ${step3_cli_id} --tool codex --mode write",
     "resume_from": "step3_cli_id",  // Reference previous step's CLI ID
     "modification_points": ["[Continue from step 3]"],
     "logic_flow": ["[Build on previous output]"],

.claude/agents/cli-execution-agent.md

@@ -134,7 +134,7 @@ RULES: $(cat {selected_template}) | {constraints}
 ```
 analyze|plan → gemini (qwen fallback) + mode=analysis
 execute (simple|medium) → gemini (qwen fallback) + mode=write
-execute (complex) → codex + mode=auto
+execute (complex) → codex + mode=write
 discuss → multi (gemini + codex parallel)
 ```
 
@@ -165,9 +165,9 @@ RULES: $(cat ~/.claude/workflows/cli-templates/prompts/analysis/pattern.txt)
 ccw cli exec "..." --tool gemini --mode write --cd {dir}
 ```
 
-**Codex (Auto)**:
+**Codex (Write)**:
 ```bash
-ccw cli exec "..." --tool codex --mode auto --cd {dir}
+ccw cli exec "..." --tool codex --mode write --cd {dir}
 ```
 
 **Cross-Directory** (Gemini/Qwen):

.claude/agents/code-developer.md

@@ -123,7 +123,7 @@ When task JSON contains `flow_control.implementation_approach` array:
 
 **CLI Command Execution (CLI Execute Mode)**:
 When step contains `command` field with Codex CLI, execute via CCW CLI. For Codex resume:
-- First task (`depends_on: []`): `ccw cli exec "..." --tool codex --mode auto --cd [path]`
+- First task (`depends_on: []`): `ccw cli exec "..." --tool codex --mode write --cd [path]`
 - Subsequent tasks (has `depends_on`): Use CCW CLI with resume context to maintain session
 
 **Test-Driven Development**: