# mcp-librarian

> mcp-librarian — penumbraforge-mcp-librarian. Use this tool when you need to efficiently search and manage large collections of data with minimal dependencies, leveraging BM25 search and Ed25519 status indexing for secure and accurate results. It solves problems related to information retrieval and data organization, providing a lightweight and flexible solution. Ideal for use cases where dependency management is a concern, such as in git-based projects.

Canonical page: https://skillsregistry.net/skills/penumbraforge-mcp-librarian  
JSON: https://api.skillsregistry.net/v1/skills/penumbraforge-mcp-librarian

## Description

Experimental zero-runtime-dependency MCP skill library with BM25 search and indexed Ed25519 status; clients must enforce that status.

## Trust

- **Trust score (0–1):** 0.91
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **License:** Apache-2.0
- **Updated:** 2026-09-28

## Source

- **Source listing:** [GitHub](https://github.com/penumbraforge/mcp-librarian)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "penumbraforge-mcp-librarian"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/penumbraforge-mcp-librarian` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/penumbraforge-mcp-librarian/pull`

---
SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt