agentmods.dev

cucumberstudio-mcp: Instructions file for Claude Code

CLAUDE.md

cucumberstudio-mcp CLAUDE.md is an instructions file for Claude Code from HeroSizy/cucumberstudio-mcp. It costs 1,595 tokens per session, scanned A, original, MIT.

A repository guide for developing the Cucumber Studio MCP server, including its npm, testing, linting, type-checking, and Docker commands. MCP servers provide standard connections between AI assistants and external systems.

In plain words
What is it for?
Installing dependencies, building, running, testing, linting, type-checking, and starting the Cucumber Studio MCP server locally or in Docker.
Why use it?
It puts the project's common development and deployment commands in one place for coding-agent work.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is HeroSizy/cucumberstudio-mcp's own configuration. It tells Claude Code how to work on cucumberstudio-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything cucumberstudio-mcp configures →

not rated 21repo 5mo ago A scan 1,595 tokens original MIT
View source ↗ HeroSizy/cucumberstudio-mcp
Reuse

Borrowing it

Nothing to install: this file belongs to HeroSizy/cucumberstudio-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/HeroSizy/cucumberstudio-mcp/master/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/HeroSizy/cucumberstudio-mcp

Made for: Claude Code.

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 cucumberstudio-mcp CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/herosizy/cucumberstudio-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/herosizy/cucumberstudio-mcp/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/herosizy/cucumberstudio-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/herosizy/cucumberstudio-mcp/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.

agentmods 80×15 button for cucumberstudio-mcp CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/herosizy/cucumberstudio-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/herosizy/cucumberstudio-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,595 This file is loaded in full into every session.
When invoked 1,595 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.01595 $0.01595
Opus 5 $0.00797 $0.00797
Sonnet 5 $0.00319 $0.00319
Haiku 4.5 $0.00160 $0.00160

Measured 10d ago against content hash ba58d3f6b298, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

cucumberstudio-mcp 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.

CLAUDE.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 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

This is a CucumberStudio MCP (Model Context Protocol) project. MCP servers provide standardized interfaces for AI assistants to interact with external systems and data sources.

Development Commands

  • npm install - Install dependencies
  • npm run build - Build TypeScript to JavaScript
  • npm run dev - Run the server in development mode with tsx
  • npm start - Run the built server
  • npm run lint - Run ESLint
  • npm run typecheck - Run TypeScript type checking
  • npm test - Run tests once
  • npm run test:watch - Run tests in watch mode
  • npm run test:coverage - Run tests with coverage report

Docker Commands

  • npm run docker:build - Build production Docker image
  • npm run docker:build:dev - Build development Docker image
  • npm run docker:run - Run production container
  • npm run docker:run:dev - Run development container with hot reload
  • npm run docker:compose:up - Start with docker-compose
  • npm run docker:compose:up:dev - Start development environment
  • npm run docker:compose:down - Stop docker-compose services

Transport Options

  • STDIO (default): npm start or MCP_TRANSPORT=stdio npm start
  • HTTP/Streamable HTTP: npm run start:http or MCP_TRANSPORT=http npm start
  • Development HTTP: npm run dev:http or MCP_TRANSPORT=http npm run dev

Architecture

The MCP server is built with TypeScript and follows a clean, modular architecture:

  • Entry Point: src/index.ts - Main entry point with transport selection using enum-based switch cases
  • Server Factory: src/mcp-server.ts - Direct McpServer creation with tool registration
  • Configuration: src/config/settings.ts - Environment-based configuration management
  • Transports: src/transports/ - Transport layer implementations
    • stdio.ts - Standard input/output transport (default)
    • http.ts - Streamable HTTP transport with session management
    • index.ts - Transport exports, types, and enums
  • API Client: src/api/client.ts - Cucumber Studio API client with authentication
  • Tool Modules: src/tools/ - MCP tool implementations organized by feature
    • projects.ts - Project management tools
    • scenarios.ts - Scenario retrieval tools
    • action-words.ts - Action word (reusable steps) tools
    • test-runs.ts - Test execution and build tools
  • Utilities: src/utils/ - Error handling and validation utilities

Read the full file on GitHub · 140 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. 10d ago First seen · 140 lines · 1,595 tokens per session scan A ba58d3f6b298

Subscribe to this mod's changes

cucumberstudio-mcp CLAUDE.md is an instructions file published in the GitHub repository HeroSizy/cucumberstudio-mcp (21 stars, last pushed 5mo ago), licensed MIT. It adds 1,595 tokens to every session, about $0.0080 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.

cucumbercucumberstudiomcpmcp-servermodelcontextprotocolstudio
Related

Other instructions, from other repositories

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

spec-kit AGENTS.md

AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.

github/spec-kit · 7,104 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens