Back to MCP Servers

Mechanical write gates, evidence receipts, and adversarial review for AI coding agents.

To add Fable Mode to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation.

AIDevTools

Install

uvx fable-engine@1.3.5

Install with your client

Terminal
claude mcp add fable-mode -- uvx fable-engine@1.3.5

Run this in a terminal to add the server to Claude Code.

What this does

Fable Mode exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.

Frequently asked questions

How do I install Fable Mode?

Run the Claude Code command in the install section to add Fable Mode to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.

Which clients work with Fable Mode?

This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to Fable Mode as well.

Does Fable Mode need an API key?

This listing does not ask for an API key or any environment variables.

Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.

Is this your MCP server?

Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.

Listed on clauderules.net

Add this badge to your README

Show visitors this server is listed in the ClaudeRules directory. The badge links straight to this listing.

Markdown
[![Listed on clauderules.net](https://clauderules.net/api/badge/io-github-rex-codebase-fable-mode)](https://clauderules.net/mcp/io-github-rex-codebase-fable-mode)
HTML
<a href="https://clauderules.net/mcp/io-github-rex-codebase-fable-mode" target="_blank" rel="noopener noreferrer"><img src="https://clauderules.net/api/badge/io-github-rex-codebase-fable-mode" alt="Listed on clauderules.net" /></a>