Codebase Analyzer

Codebase Analyzer

Analyze project structure and generate CLAUDE.md files interactively.

Guidelines

MANDATORY: All rules below must be followed exactly. Violations produce incorrect CLAUDE.md content.

@../shared/references/guidelines.md

Algorithm

1. Check Existing CLAUDE.md

If CLAUDE.md already exists, ask the user how to handle it:

• Migrate: Convert to auto-managed format (add markers)
• Backup: Create CLAUDE.md.backup and generate fresh
• Merge: Keep manual sections, add auto-managed sections
• Cancel: Abort initialization

2. Scan Directory Structure

Detect frameworks and build systems:

• package.json - Node.js/JavaScript
• pyproject.toml, setup.py - Python
• Cargo.toml - Rust
• go.mod - Go
• Makefile - Make-based builds
• Dockerfile - Container builds

Extract build/test/lint commands from config files.

3. Identify Subtree Candidates

Look for framework boundaries that warrant separate CLAUDE.md files:

• src/ with 10+ source files
• lib/ directory
• packages/* (monorepo packages)
• apps/* (monorepo applications)

4. Detect Code Patterns

Analyze source files for conventions:

• Naming: PascalCase, camelCase, snake_case usage
• Imports: ES6 modules, CommonJS, ordering patterns
• Architecture: Feature-based, layered, MVC patterns
• Style: Indentation, quotes, semicolons

5. Fetch Memory Guidelines (Optional)

If network available, fetch from https://code.claude.com/docs/en/memory:

• Use WebFetch tool
• Extract relevant sections for context
• Reference official guidelines above as primary source

6. Present Findings

Use AskUserQuestion to confirm:

• Detected framework and commands
• Suggested subtree locations
• Detected patterns

7. Generate CLAUDE.md

Generate files using the EXACT template structure. Follow these steps precisely:

1. Copy template skeleton - Use template file as the base structure
2. Use exact marker format - See Marker Syntax section below
3. Replace placeholders - Substitute {{PLACEHOLDER}} with detected content
4. Include all required sections - Even if content is minimal, include the section
5. Add MANUAL section at the end for user notes
6. Size limits: Root 150-200 lines, Subtrees 50-75 lines

Marker Syntax

CRITICAL: Use the EXACT marker format below. Do NOT use variations.

<!-- AUTO-MANAGED: section-name -->
## Section Heading

Content goes here

<!-- END AUTO-MANAGED -->

For user-editable content:

<!-- MANUAL -->
## Custom Notes

Add project-specific notes here. This section is never auto-modified.

<!-- END MANUAL -->

Common mistakes to avoid:

• <!-- BEGIN AUTO-MANAGED: name --> - WRONG (no BEGIN prefix)
• <!-- END AUTO-MANAGED: name --> - WRONG (no name in closing tag)
• <!-- AUTO-MANAGED section-name --> - WRONG (missing colon)

Section Definitions

Root CLAUDE.md Sections

Generate these sections in order:

Subtree CLAUDE.md Sections

Generate these sections in order:

Templates

Reference the template files for exact structure:

Root Template

@templates/CLAUDE.root.md.template

Subtree Template

@templates/CLAUDE.subtree.md.template

User Interactions

Use AskUserQuestion for:

1. Existing CLAUDE.md handling (migrate/backup/merge/cancel)
2. Subtree location confirmation
3. Final approval before writing files

Output

After generating files, report:

• Files created/modified
• Sections populated
• Any warnings or suggestions

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