Borrowing it
Nothing to install: this file belongs to d-kimuson/modular-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.
curl -O https://raw.githubusercontent.com/d-kimuson/modular-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/d-kimuson/modular-mcpWrote 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/d-kimuson/modular-mcp/claude-md)<a href="https://agentmods.dev/instructions/d-kimuson/modular-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/d-kimuson/modular-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.
<a href="https://agentmods.dev/instructions/d-kimuson/modular-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/d-kimuson/modular-mcp/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 | $0.00437 | $0.00437 |
| Opus 5.5 | $0.00175 | $0.00175 |
| Sonnet 5.5 | $0.00087 | $0.00087 |
| Haiku 4.5 | $0.00044 | $0.00044 |
Grade A, and why
modular-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 1mo 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.
What it actually says
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
This is a TypeScript-based project configured with strict type checking and modern tooling. The project uses:
- Package Manager: pnpm (v10.19.0+)
- Node Version: >=22.0.0
- TypeScript: Configured with strictest settings via
@tsconfig/strictestand@tsconfig/node22 - Code Quality: Biome for linting and formatting
- Module System: ES modules (
"type": "module")
Development Commands
Linting and Formatting
# Run all linters
pnpm lint
# Auto-fix all issues
pnpm fix
# Individual linting
pnpm lint:biome-format # Check formatting
pnpm lint:biome-lint # Check linting
# Individual fixing
pnpm fix:biome-format # Auto-fix formatting
pnpm fix:biome-lint # Auto-fix linting (including unsafe fixes)
Type Checking
pnpm typecheck # Run TypeScript compiler without emitting files
Code Style
Biome Configuration
- Formatter: Enabled with space indentation
- Quote Style: Double quotes for JavaScript/TypeScript
- Import Organization: Automatic import organizing enabled
- JSON: Allows comments in JSON files
TypeScript Configuration
- Extends
@tsconfig/node22and@tsconfig/strictest noEmit: true- Type checking only, no compilation outputexactOptionalPropertyTypes: false- Relaxed from strictest preset- Source files located in
src/directory
Architecture Notes
This appears to be an early-stage project with minimal implementation (only a dummy export in src/index.ts). The project is set up with a robust foundation for TypeScript development with strict quality controls.
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.
- 1mo ago First seen · 55 lines · 437 tokens per session scan A c9fa54d5702a
modular-mcp CLAUDE.md is an instructions file published in the GitHub repository d-kimuson/modular-mcp (51 stars, last pushed 11mo ago), licensed MIT. It adds 437 tokens to every session, about $0.0017 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 2026-08-30.
Other instructions, from other repositories
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).
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.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
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.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.