docwriter-mcp-server: Instructions file for Claude Code

CLAUDE.md

docwriter-mcp-server CLAUDE.md is an instructions file for Claude Code from cyanheads/docwriter-mcp-server. It costs 1,933 tokens per session, scanned A, original, Apache-2.0.

A project instruction file for docwriter-mcp-server, a TypeScript server and client template using the Model Context Protocol, a standard way for AI tools to communicate with software.

In plain words
What is it for?
It is for guiding development tasks such as building the server, running it over standard input or HTTP, generating TypeDoc documentation, and debugging with MCP Inspector.
Why use it?
It gives contributors the commands and project structure needed to build, run, format, document, and inspect the project consistently.

Instructions file for Claude Code

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

This is cyanheads/docwriter-mcp-server's own configuration. It tells Claude Code how to work on docwriter-mcp-server 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 docwriter-mcp-server configures →

Reuse

Borrowing it

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

Made for: Claude Code.

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README.md
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Per session 1,933 This file is loaded in full into every session.
When invoked 1,933 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 $0.01933 $0.01933
Opus 5.5 $0.00773 $0.00773
Sonnet 5.5 $0.00387 $0.00387
Haiku 4.5 $0.00193 $0.00193

Measured 2mo ago against content hash fbfaa725f90b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

docwriter-mcp-server 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 2mo 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 · 209 lines

How it starts

The opening of the file, as written. The whole thing — 209 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

Build & Run

  • npm run build - Build TypeScript and make executable
  • npm run rebuild - Clean build (removes node_modules, logs, dist)
  • npm start - Run the built server (stdio transport)
  • npm run start:stdio - Run server with stdio transport and debug logging
  • npm run start:http - Run server with HTTP transport and debug logging

Development Tools

  • npm run format - Format code with Prettier
  • npm run docs:generate - Generate TypeDoc documentation
  • npm run tree - Generate project structure tree
  • npm run inspector - Launch MCP inspector for debugging

Project Architecture

This is a TypeScript template for building Model Context Protocol (MCP) servers and clients following the MCP 2025-03-26 specification.

Project Structure

mcp-ts-template
├── .clinerules
├── .dockerignore
├── .gitignore
├── .ncurc.json
├── CHANGELOG.md
├── CLAUDE.md
├── Dockerfile
├── docs
│   ├── api
│   ├── api-references
│   │   ├── duckDB.md
│   │   ├── jsdoc-standard-tags.md
│   │   └── typedoc-reference.md
│   └── tree.md
├── LICENSE
├── mcp.json
├── package-lock.json
├── package.json
├── README.md
├── repomix.config.json
├── scripts
│   ├── clean.ts
│   ├── fetch-openapi-spec.ts
│   ├── make-executable.ts
│   ├── README.md
│   └── tree.ts
├── smithery.yaml
├── src
│   ├── config
│   │   └── index.ts
│   ├── index.ts
│   ├── mcp-client
│   │   ├── client-config
│   │   │   ├── configLoader.ts
│   │   │   ├── mcp-config.json.example
│   │   │   └── README.md
│   │   ├── core
│   │   │   ├── clientCache.ts
│   │   │   ├── clientConnectionLogic.ts
│   │   │   └── clientManager.ts
│   │   ├── index.ts
│   │   └── transports
│   │       ├── httpClientTransport.ts
│   │       ├── index.ts
│   │       ├── stdioClientTransport.ts
│   │       └── transportFactory.ts
│   ├── mcp-server
│   │   ├── README.md
│   │   ├── resources
│   │   │   └── echoResource
│   │   │       ├── echoResourceLogic.ts
│   │   │       ├── index.ts
│   │   │       └── registration.ts
│   │   ├── server.ts
│   │   ├── tools
│   │   │   ├── catFactFetcher
│   │   │   │   ├── index.ts
│   │   │   │   ├── logic.ts
│   │   │   │   └── registration.ts
│   │   │   ├── echoTool
│   │   │   │   ├── index.ts
│   │   │   │   ├── logic.ts
│   │   │   │   └── registration.ts
│   │   │   └── imageTest
│   │   │       ├── index.ts
│   │   │       ├── logic.ts
│   │   │       └── registration.ts
│   │   └── transports
│   │       ├── authentication
│   │       │   └── authMiddleware.ts
│   │       ├── httpTransport.ts
│   │       └── stdioTransport.ts
│   ├── services
│   │   ├── duck-db
│   │   │   ├── duckDBConnectionManager.ts
│   │   │   ├── duckDBQueryExecutor.ts
│   │   │   ├── duckDBService.ts
│   │   │   └── types.ts
│   │   └── llm-providers
│   │       └── openRouterProvider.ts
│   ├── storage
│   │   └── duckdbExample.ts
│   ├── types-global
│   │   └── errors.ts
│   └── utils
│       ├── index.ts
│       ├── internal
│       │   ├── errorHandler.ts
│       │   ├── index.ts
│       │   ├── logger.ts
│       │   └── requestContext.ts
│       ├── metrics
│       │   ├── index.ts
│       │   └── tokenCounter.ts
│       ├── network
│       │   ├── fetchWithTimeout.ts
│       │   └── index.ts
│       ├── parsing
│       │   ├── dateParser.ts
│       │   ├── index.ts
│       │   └── jsonParser.ts
│       └── security
│           ├── idGenerator.ts
│           ├── index.ts
│           ├── rateLimiter.ts
│           └── sanitization.ts
├── tsconfig.json
├── tsconfig.typedoc.json
├── tsdoc.json
└── typedoc.json

Read the full file on GitHub · 209 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. 2mo ago First seen · 209 lines · 1,933 tokens per session scan A fbfaa725f90b

Subscribe to this mod's changes

docwriter-mcp-server CLAUDE.md is an instructions file published in the GitHub repository cyanheads/docwriter-mcp-server (3 stars, last pushed 1y ago), licensed Apache-2.0. It adds 1,933 tokens to every session, about $0.0077 per session on Opus 5.5. 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 2026-08-31.

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