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ENJA

librarian

iannuttall/librarian

Librarian is a local-first documentation search and retrieval tool that feeds real-time library documentation to AI agents, preventing hallucinations and outdated code generation.

98 8No licenseUpdated 2026-01-08

Overview

Librarian indexes GitHub repositories and public websites locally, providing word, vector, and hybrid search capabilities over software development documentation. It features an MCP server interface that allows AI agents to query the latest documentation, inspect precise code slices, detect codebase versions, and avoid guessing API details.

Capabilities

  • Local-first document indexing and embedding
  • Hybrid, word, and vector search modes
  • Website crawling with auto-discovery via llms.txt, sitemap.xml, and robots.txt
  • GitHub repository ingestion with version labeling
  • Precise document slice retrieval
  • Model Context Protocol (MCP) server integration

Best for

Searching up-to-date documentation for libraries and frameworks inside an AI coding assistant, Fetching specific code snippets and doc slices using an MCP-compatible read-only server, Detecting project versions locally to run precise library queries without mixed-version results

Works with

Claude CodeCodex
Evoa Score breakdown= Σ (score × weight)
62
Task usefulness20%100 → +20.0

実タスクにどれだけ役立つか(機能の豊富さ・用途の明確さ)。 AIによるcapabilities/use-cases解析

Code quality15%90 → +13.5

実装・指示の品質。 AIによるSKILL.md/README解析

Maintenance15%50 → +7.5

リポジトリがどれだけ活発に保守されているか。 GitHub 最終push日時の新しさ

Documentation12%39 → +4.7

ドキュメントの充実度・分かりやすさ。 README/独自要約の情報量

Security15%80 → +12.0

危険・不審な挙動が無いか。 AIによるセキュリティレビュー

Originality10%85 → +8.5

ありふれたラッパーではない独自性。 AIによる独自性判定

Popularity8%52 → +4.2

コミュニティの採用度。 GitHub Stars/Forks(対数スケール)

Compatibility5%50 → +2.5

対応AIエージェントの広さ。 AIによる対応エージェント判定

Weighted total72.8 / 100

ライセンス不明/制限あり(Red)のSkillは総合スコアに0.85倍の補正を適用します。 ランキングはこのScoreのみで決まり、広告で変わりません。 算出方法の詳細 →

Security considerations

Tokens for GitHub and proxy configurations are stored locally in configuration files; ensure they are not exposed or logged by agents.

Categories

Summary and analysis are original content generated by AI Skills Rank. The skill's source text is not reproduced here — view it on the linked repository.