brain-in-the-fish

Overview

Brain in the Fish is an MCP server that evaluates documents by decomposing them into OWL knowledge graphs where each claim is linked to exact source quotes. It scores content based on structural evidence, catching unsupported claims and hallucinations. The server provides three verdict types: CONFIRMED (evidence matches score), FLAGGED (score exceeds evidence), and REJECTED (no evidence). It supports verification through source text checking and optional web search for external validation.

Try asking AI

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

• evaluate

  Evaluate a document to get a score, knowledge graph, and verdict

  Try:Evaluate this policy document for evidence-backed claimsTry:Assess the quality of this tender response methodologyTry:Check this essay for circular reasoning and fabricated citations
• demo

  Run demonstrations showing REJECTED, CONFIRMED, and FLAGGED verdicts

  Try:Show me the demo with all three verdict typesTry:Demonstrate how BITF evaluates different document types
• serve

  Start the MCP server for Claude integration

  Try:Start the brain-in-the-fish serverTry:Run BITF as an MCP server

Note: Inferred tool names from CLI commands throughout the README, as no explicit MCP tools section was found. The MCP server appears to expose these core functions through an MCP interface.

Comparable tools

Installation

git clone https://github.com/fabio-rovai/brain-in-the-fish.git
cd brain-in-the-fish
cargo build --release

# Run as MCP server
brain-in-the-fish serve

{
  "mcpServers": {
    "brain-in-the-fish": {
      "command": "/path/to/brain-in-the-fish-mcp"
    }
  }
}

FAQ

What file formats are supported?

The system primarily supports PDF documents, though the README mentions evaluating essays, policy documents, and clinical reports.

Does it require internet access for verification?

No, basic verification only checks against the source document. Optional web verification can be enabled with the --verify flag.

Compare brain-in-the-fish with