# Implementation Summary: Rules CLI Generation Feature

## Status: ✅ Complete

## Files Modified

### D:\Claude_dms3\ccw\src\core\routes\rules-routes.ts

**Changes:**
1. Added import for `executeCliTool` from cli-executor
2. Implemented `generateRuleViaCLI()` function
3. Modified POST `/api/rules/create` endpoint to support `mode: 'cli-generate'`

## Implementation Details

### 1. New Function: `generateRuleViaCLI()`

**Location:** lines 224-340

**Purpose:** Generate rule content using Gemini CLI based on different generation strategies

**Parameters:**
- `generationType`: 'description' | 'template' | 'extract'
- `description`: Natural language description of the rule
- `templateType`: Template category for structured generation
- `extractScope`: File pattern for code analysis (e.g., 'src/**/*.ts')
- `extractFocus`: Focus areas for extraction (e.g., 'error handling, naming')
- `fileName`: Target filename (must end with .md)
- `location`: 'project' or 'user'
- `subdirectory`: Optional subdirectory path
- `projectPath`: Project root directory

**Process Flow:**
1. Parse parameters and determine generation type
2. Build appropriate CLI prompt template based on type
3. Execute Gemini CLI with:
   - Tool: 'gemini'
   - Mode: 'write' for description/template, 'analysis' for extract
   - Timeout: 10 minutes (600000ms)
   - Working directory: projectPath
4. Validate CLI execution result
5. Extract generated content from stdout
6. Call `createRule()` to save the file
7. Return result with execution ID

### 2. Prompt Templates

#### Description Mode (write)
```
PURPOSE: Generate Claude Code memory rule from description to guide Claude's behavior
TASK: • Analyze rule requirements • Generate markdown content with clear instructions
MODE: write
EXPECTED: Complete rule content in markdown format
RULES: $(cat ~/.claude/workflows/cli-templates/prompts/universal/00-universal-rigorous-style.txt)
```

#### Template Mode (write)
```
PURPOSE: Generate Claude Code rule from template type
TASK: • Create rule based on {templateType} • Generate structured markdown content
MODE: write
EXPECTED: Complete rule content in markdown format following template structure
RULES: $(cat ~/.claude/workflows/cli-templates/prompts/universal/00-universal-rigorous-style.txt)
```

#### Extract Mode (analysis)
```
PURPOSE: Extract coding rules from existing codebase to document patterns and conventions
TASK: • Analyze code patterns • Extract common conventions • Identify best practices
MODE: analysis
CONTEXT: @{extractScope || '**/*'}
EXPECTED: Rule content based on codebase analysis with examples
RULES: $(cat ~/.claude/workflows/cli-templates/prompts/analysis/02-analyze-code-patterns.txt)
```

### 3. API Endpoint Modification

**Endpoint:** POST `/api/rules/create`

**Enhanced Request Body:**
```json
{
  "mode": "cli-generate",           // NEW: triggers CLI generation
  "generationType": "description",  // NEW: 'description' | 'template' | 'extract'
  "description": "...",             // NEW: for description mode
  "templateType": "...",            // NEW: for template mode
  "extractScope": "src/**/*.ts",    // NEW: for extract mode
  "extractFocus": "...",            // NEW: for extract mode
  "fileName": "rule-name.md",       // REQUIRED
  "location": "project",            // REQUIRED: 'project' | 'user'
  "subdirectory": "",               // OPTIONAL
  "projectPath": "..."              // OPTIONAL: defaults to initialPath
}
```

**Backward Compatibility:** Existing manual creation still works:
```json
{
  "fileName": "rule-name.md",
  "content": "# Rule Content\n...",
  "location": "project",
  "paths": [],
  "subdirectory": ""
}
```

**Response Format:**
```json
{
  "success": true,
  "fileName": "rule-name.md",
  "location": "project",
  "path": "/absolute/path/to/rule-name.md",
  "subdirectory": null,
  "generatedContent": "# Generated Content\n...",
  "executionId": "1734168000000-gemini"
}
```

## Error Handling

### Validation Errors
- Missing `fileName`: "File name is required"
- Missing `location`: "Location is required (project or user)"
- Missing `generationType` in CLI mode: "generationType is required for CLI generation mode"
- Missing `description` for description mode: "description is required for description-based generation"
- Missing `templateType` for template mode: "templateType is required for template-based generation"
- Unknown `generationType`: "Unknown generation type: {type}"

### CLI Execution Errors
- CLI tool failure: Returns `{ error: "CLI execution failed: ...", stderr: "..." }`
- Empty content: Returns `{ error: "CLI execution returned empty content", stdout: "...", stderr: "..." }`
- Timeout: CLI executor will timeout after 10 minutes
- File exists: "Rule '{fileName}' already exists in {location} location"

## Testing

### Test Document
Created: `D:\Claude_dms3\test-rules-cli-generation.md`

Contains:
- API usage examples for all 3 generation types
- Request/response format examples
- Error handling scenarios
- Integration details

### Compilation Test
✅ TypeScript compilation successful (`npm run build`)

## Integration Points

### Dependencies
- **cli-executor.ts**: Provides `executeCliTool()` for Gemini execution
- **createRule()**: Existing function for file creation
- **handlePostRequest()**: Existing request handler from RouteContext

### CLI Tool
- **Tool**: Gemini (via `executeCliTool()`)
- **Timeout**: 10 minutes (600000ms)
- **Mode**: 'write' for generation, 'analysis' for extraction
- **Working Directory**: Project path for context access

## Next Steps (Not Implemented)

1. **UI Integration**: Add frontend interface in Rules Manager dashboard
2. **Streaming Output**: Display CLI execution progress in real-time
3. **Preview**: Show generated content before saving
4. **Refinement**: Allow iterative refinement of generated rules
5. **Templates Library**: Add predefined template types
6. **History**: Track generation history and allow regeneration

## Verification Checklist

- [x] Import cli-executor functions
- [x] Implement `generateRuleViaCLI()` with 3 generation types
- [x] Build appropriate prompts for each type
- [x] Use correct MODE (analysis vs write)
- [x] Set timeout to at least 10 minutes
- [x] Integrate with `createRule()` for file creation
- [x] Modify POST endpoint to support `mode: 'cli-generate'`
- [x] Validate required parameters
- [x] Return unified result format
- [x] Handle errors appropriately
- [x] Maintain backward compatibility
- [x] Verify TypeScript compilation
- [x] Create test documentation

## Files Created
- `D:\Claude_dms3\test-rules-cli-generation.md`: Test documentation
- `D:\Claude_dms3\IMPLEMENTATION_SUMMARY.md`: This file