# LongBook Verifier

> Use this tool when you need to verify the accuracy of AI-generated outputs or retrieval methods against long narrative manuscripts. The LongBook Verifier evaluates coverage and provides evidence by chunking, indexing, and retrieving relevant information, solving problems of data validation and trustworthiness. It takes in narrative manuscripts and AI outputs as inputs and returns scored coverage and evidence as outputs.

Canonical page: https://skillsregistry.net/skills/mormolykos-longbook-rag-eval-lab  
JSON: https://api.skillsregistry.net/v1/skills/mormolykos-longbook-rag-eval-lab

## Description

An MCP server that evaluates whether retrieval methods and AI outputs are grounded in long narrative manuscripts by retrieving evidence and scoring coverage deterministically, without external model APIs. It provides tools for chunking, indexing, retrieval, and evaluation.

## Trust

- **Trust score (0–1):** 0.67
- **Verification tier:** scanned
- **Last scanned:** 2026-08-31

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-08-31

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/hqb479i2gr)
- **Repository:** <https://github.com/Mormolykos/longbook-rag-eval-lab>

## 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": "mormolykos-longbook-rag-eval-lab"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/mormolykos-longbook-rag-eval-lab` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/mormolykos-longbook-rag-eval-lab/pull`

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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