langchain-ai/openwiki

OpenWiki is a tool that automatically writes and updates documentation for your codebase, with a specific focus on helping AI coding agents understand your project. Instead of manually keeping your wiki or docs in sync with your latest code changes, you can run this command-line tool to do it for you. It generates documentation into an openwiki/ folder and can even automatically update those docs daily via a GitHub Action. To get started, you run a simple initialization command that prompts you to connect an AI provider (like OpenAI or Anthropic) and enter your API key. Once configured, the tool reads through your code and generates documentation. On subsequent runs, it checks what has changed in your repository and refreshes the existing documentation accordingly. You can use it interactively to chat and guide the documentation process, or run single commands for quick updates. The people who would benefit most from this are developers and team leads who use AI assistants to write or review code. AI agents need context to work effectively, and outdated documentation can lead to bad suggestions. OpenWiki helps solve this by automatically appending instructions to your AGENTS.md or CLAUDE.md files, telling your coding agent to reference the generated wiki for context. This ensures your AI tools always have accurate, up-to-date information about how your codebase works. The project is built in TypeScript and supports several major AI providers right out of the box, including OpenRouter, Fireworks, Baseten, OpenAI, and Anthropic. While it offers a few pre-defined models to choose from, it also gives you the flexibility to specify a custom model ID for your preferred provider. Configuration and API keys are stored locally on your machine in a hidden file, and you can optionally connect it to LangSmith to trace and monitor your documentation generation runs.