booklib

Overview

BookLib is a context engineering tool that solves the problem of AI assistants using outdated knowledge from training data. It automatically detects post-training APIs and library versions that your project uses but the AI doesn't know about, then injects correct documentation and patterns at runtime via MCP. The tool works with Claude, Cursor, Copilot, and 10+ other AI coding assistants, ensuring generated code matches your team's current decisions and best practices.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

• booklib_gaps

  Find post-training dependencies in your codebase

  Try:Find all post-training dependencies in my projectTry:Show me APIs that are missing from the training data
• booklib_resolve_gaps

  Auto-fix knowledge gaps using Context7 and GitHub

  Try:Fix the post-training API gaps automaticallyTry:Resolve unknown package imports for me
• booklib_analyze

  Show affected files and post-training APIs in your project

  Try:Analyze my code for post-training issuesTry:Show me files with outdated API usage
• booklib_search

  Search through skills and knowledge base

  Try:Search for React best practicesTry:Find information about payment processing patterns
• booklib_capture

  Save team decisions or insights to the knowledge base

  Try:Capture our team's decision to use PaymentIntents not ChargesTry:Add this coding guideline to our knowledge base
• booklib_check_imports

  Flag unknown APIs in a specific file

  Try:Check imports in src/services/payment.ts for unknown APIsTry:Verify these function calls exist in the documentation
• booklib_check_decisions

  Check code against captured team rules

  Try:Verify this code follows our team patternsTry:Check if this implementation violates our decisions
• booklib_connect

  Index external documentation sources

  Try:Connect our Notion database to the knowledge baseTry:Index the GitHub repository's documentation
• booklib_sources

  List connected documentation sources

  Try:Show all connected documentation sourcesTry:List all indexed knowledge sources
• booklib_index

  Rebuild the search index

  Try:Rebuild the search index with all new knowledgeTry:Update the index after adding new documentation
• booklib_doctor

  Run health check for skills and configuration

  Try:Check my booklib configurationTry:Verify all skills are working correctly
• booklib_init

  Initialize booklib with guided setup for your stack

  Try:Set up booklib for my projectTry:Initialize booklib with my stack configuration

Note: Tools were extracted from CLI reference section. The README shows booklib as a CLI tool that operates through MCP hooks, but doesn't explicitly list MCP tool names. The tool names are based on CLI commands but represent functionality expose

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Installation

npm install -g @booklib/core

booklib init

FAQ

What AI tools does BookLib support?

BookLib supports Claude Code, Cursor, Copilot, Gemini CLI, Codex, Windsurf, Roo Code, Goose, Zed, Continue, OpenHands, Junie, OpenCode, and Letta through MCP, plus 14 tools via instruction-file support.

How does BookLib detect knowledge gaps?

It scans your dependencies across 10 package ecosystems (npm, PyPI, Maven, etc.), checks publish dates against model training cutoffs, and cross-references with your source code to find affected APIs.

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