mcp-picnic: Instructions file for Claude Code

CLAUDE.md

mcp-picnic CLAUDE.md is an instructions file for Claude Code from ivo-toby/mcp-picnic. It costs 296 tokens per session, scanned A, original, MIT.

A development guide for a Contentful GraphQL MCP server, a tool that lets software query Contentful content through GraphQL. It records the project's commands, code style, entity structure, and testing approach.

In plain words
What is it for?
Use it when adding or changing handlers, working with Contentful entities, writing TypeScript, documenting APIs, or creating Vitest unit tests.
Why use it?
It gives coding agents the repository's conventions so changes are consistent and can be checked with the expected build, lint, type-check, and test commands.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is ivo-toby/mcp-picnic's own configuration. It tells Claude Code how to work on mcp-picnic 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 mcp-picnic configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ivo-toby/mcp-picnic. 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/ivo-toby/mcp-picnic/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/ivo-toby/mcp-picnic

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 296 This file is loaded in full into every session.
When invoked 296 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 $0.00296 $0.00296
Opus 5 $0.00148 $0.00148
Sonnet 5 $0.00059 $0.00059
Haiku 4.5 $0.00030 $0.00030

Measured 11d ago against content hash ab90ac6532a9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

mcp-picnic 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 11d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

CLAUDE.md · 37 lines

What it actually says

Contentful GraphQL MCP - Development Guide

Common Commands

  • Build: npm run build
  • Type Check: npm run typecheck
  • Lint: npm run lint
  • Run Tests: npm test
  • Run Single Test: npx vitest run test/path/to/test.test.ts
  • Run Tests in Watch Mode: npm run test:watch
  • Dev Mode (watch & rebuild): npm run dev

Code Style Guidelines

  • Formatting: Uses Prettier with 100 char width, no semicolons, double quotes
  • TypeScript: Use strict typing, avoid any when possible
  • Imports: Order from external to internal, group related imports
  • Naming: Use camelCase for variables/functions, PascalCase for types/interfaces
  • Error Handling: Always handle errors in async functions with try/catch blocks
  • Documentation: Add JSDoc style comments for functions and interfaces

Entity Structure

  • Each handler should focus on a single responsibility

Testing

Tests use Vitest with a lightweight unit testing approach. Current test structure:

  • test/unit/ - Lightweight unit tests for public API functions

Focus on testing behavior, not implementation details. See test/README.md for detailed testing guidelines.

Context

This is a MCP Server that enables LLM's to connect to Contentful GraphQL Endpoint.

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. 11d ago First seen · 37 lines · 296 tokens per session scan A ab90ac6532a9

Subscribe to this mod's changes

mcp-picnic CLAUDE.md is an instructions file published in the GitHub repository ivo-toby/mcp-picnic (98 stars, last pushed 27d ago), licensed MIT. It adds 296 tokens to every session, about $0.0015 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.