Overture CLAUDE.md

Overture CLAUDE.md is an instructions file for coding agents from SixHq/Overture. It costs 1,450 tokens per session, scanned A, original, MIT.

Project instructions for Overture, an MCP server that shows coding-agent plans as visual flowcharts before code is written. It also documents the project's two-package npm workspaces structure and its development commands.

In plain words
What is it for?
Use it when working on Overture's Node.js/TypeScript server or React frontend, especially in its monorepo.
Why use it?
It gives an agent the repository context and commands needed to install dependencies, run development mode, and build the server and interface.

Instructions file

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/sixhq/overture/claude-md
Clone the repo
git clone --depth 1 https://github.com/SixHq/Overture

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Overture CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/sixhq/overture/claude-md.svg)](https://agentmods.dev/instructions/sixhq/overture/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/sixhq/overture/claude-md"><img src="https://agentmods.dev/badge/instructions/sixhq/overture/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,450 This file is loaded in full into every session.
When invoked 1,450 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.01450 $0.01450
Opus 5 $0.00725 $0.00725
Sonnet 5 $0.00290 $0.00290
Haiku 4.5 $0.00145 $0.00145

Measured 5d ago against content hash a745e73ebb97, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Overture CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

CLAUDE.md · 148 lines

How it starts

The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

Overture is an MCP (Model Context Protocol) server that provides visual plan execution and approval workflows for AI coding agents. It intercepts AI agent planning phases and renders them as interactive visual flowcharts before code is written. Works with Claude Code, Cursor, Cline, GitHub Copilot, and Sixth AI.

Monorepo Structure

This is an npm workspaces monorepo with two packages:

  • packages/mcp-server - The MCP server (Node.js/TypeScript)
  • packages/ui - The React frontend (React Flow + Zustand + Tailwind)

Build & Development Commands

# Install dependencies (from root)
npm install

# Development - runs both server and UI with hot reload
npm run dev

# Build all packages for production
npm run build

# Development - individual packages
npm run dev:server    # MCP server only (tsx watch)
npm run dev:ui        # UI only (vite dev server)

# Build - individual packages
npm run build:server  # Outputs to packages/mcp-server/dist/
npm run build:ui      # Outputs to packages/mcp-server/ui-dist/

# Production start
npm start             # Runs built MCP server

# Clean all build artifacts
npm run clean

MCP Server Package Commands

cd packages/mcp-server
npm run dev           # tsx watch src/index.ts
npm run build         # tsup to dist/
npm run lint          # eslint src/**/*.ts
npm run start         # node dist/index.js

UI Package Commands

cd packages/ui
npm run dev           # vite dev server
npm run build         # tsc && vite build
npm run preview       # vite preview

Architecture

MCP Server (packages/mcp-server/src/)

Entry Points:

  • index.ts - MCP server initialization using @modelcontextprotocol/sdk, starts HTTP (3031) and WebSocket (3030) servers
  • cli.ts - CLI entry point for npx overture-mcp

Core Modules:

  • tools/handlers.ts - Implements all 11 MCP tools (submit_plan, get_approval, update_node_status, etc.)
  • store/plan-store.ts - MultiProjectPlanStore manages plans across multiple projects with Promise-based approval flow
  • websocket/ws-server.ts - WebSocketManager handles client connections, project subscriptions, and relay mode
  • http/server.ts - Express server serving UI and API endpoints (/api/test-plan, /api/mcp-marketplace)
  • parser/xml-parser.ts - SAX-based StreamingXMLParser for parsing plan XML into nodes/edges
  • parser/output-parser.ts - Parses structured output from agent execution
  • storage/history-storage.ts - Persists plans to ~/.overture/history.json
  • types.ts - Core types: PlanNode, PlanEdge, Plan, ProjectContext, WSMessage
  • utils/plan-diff.ts - Computes differences between plan versions

Read the full file on GitHub · 148 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 148 lines · 1,450 tokens per session scan A a745e73ebb97

Subscribe to this mod's changes

Overture CLAUDE.md is an instructions file published in the GitHub repository SixHq/Overture (635 stars, last pushed 6mo ago), licensed MIT. It adds 1,450 tokens to every session, about $0.0072 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.