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Codebase Guide
Codebase Guide is a Claude Code plugin that parses a repository and generates a single-file, offline-ready HTML onboarding document explaining the codebase structure.
Codebase Guide analyzes a repository to create a comprehensive HTML onboarding document. It maps project components, traces specific request paths through functions, and identifies file locations for common tasks. The generated output is a standalone file that includes diagrams, code excerpts with line numbers, and folder mappings. It is designed for onboarding new team members and helping existing developers locate specific functionality. The tool requires Python 3 and Node.js for certain export features. Users can customize the visual output using different design systems like meridian or builtin.
Codebase Guide at a glance
Key features
- Generates single-file HTML documentation
- Creates system diagrams derived from real code paths
- Maps features and tasks to specific file locations
- Traces actual function calls for specific requests
- Documents recurring conventions with code excerpts
- Provides a project overview and jargon definitions
- Supports multiple design systems for output styling
Use it for
- Onboarding new developers to a large codebase
- Creating documentation for project architecture
- Locating specific files for feature implementation
- Tracing request flow through system functions
Companions
Tools that articles about Codebase Guide recommend using with it, each with its job.
- Claude Code — Built to work with Claude Code.
- Context7 — Provides up-to-date documentation for AI agents and code editors.
- Playwright MCP — Enables LLMs to interact with web pages using structured accessibility snapshots.
- GitHub MCP Server — Reads pull requests, issues and code search on GitHub.
- Superpowers — Brainstorm, plan and execute skills for bigger tasks.
- gstack — Skill bundle for planning, review and shipping.
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