Borrowing it
Nothing to install: this file belongs to LSTM-Kirigaya/openmcp-client. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/LSTM-Kirigaya/openmcp-client/main/CLAUDE.mdgit clone --depth 1 https://github.com/LSTM-Kirigaya/openmcp-clientWrote 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.
[](https://agentmods.dev/instructions/lstm-kirigaya/openmcp-client/claude-md)<a href="https://agentmods.dev/instructions/lstm-kirigaya/openmcp-client/claude-md"><img src="https://agentmods.dev/badge/instructions/lstm-kirigaya/openmcp-client/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/lstm-kirigaya/openmcp-client/claude-md"><img src="https://agentmods.dev/badge/instructions/lstm-kirigaya/openmcp-client/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01442 | $0.01442 |
| Opus 5 | $0.00721 | $0.00721 |
| Sonnet 5 | $0.00288 | $0.00288 |
| Haiku 4.5 | $0.00144 | $0.00144 |
Grade A, and why
openmcp-client 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 174 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.
Development Commands
Setup and Installation
npm run setup # Install dependencies and prepare OCR resources
Development
npm run serve # Start all services in development mode (uses Turbo)
npm run build # Build all modules
npm run build:all # Build all modules (alias)
npm run build:electron # Build only Electron app
Service Development
cd service
npm run serve # Start service with hot reload (nodemon + tsx)
npm run build # Compile TypeScript to dist/
npm run debug # Start with Node.js inspector
npm run typecheck # Type checking without emit
Renderer Development
cd renderer
npm run serve # Start Vite dev server
npm run build # Build for production
npm run serve:website # Start in website mode
npm run type-check # Vue TypeScript checking
VSCode Extension
npm run vscode:prepublish # Prepare for VSCode publishing (Rollup build)
npm run compile # Compile TypeScript
npm run watch # Watch mode compilation
vsce package # Create VSIX package for distribution
vsce publish # Publish to VSCode Marketplace (requires auth)
Quality Assurance
npm run lint # ESLint for TypeScript files
npm run pretest # Run compile and lint
npm run test # Run tests
Architecture Overview
Multi-Module Structure
OpenMCP follows a layered modular architecture with three main deployment targets:
- VSCode Extension (
src/extension.ts) - IDE integration - Service Layer (
service/) - Node.js backend handling MCP protocol - Renderer Layer (
renderer/) - Vue.js frontend for UI
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.
- 10d ago First seen · 174 lines · 1,442 tokens per session scan A cbea025b33e1
openmcp-client CLAUDE.md is an instructions file published in the GitHub repository LSTM-Kirigaya/openmcp-client (752 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 1,442 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.
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