Borrowing it
Nothing to install: this file belongs to agentfront/frontmcp. 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/agentfront/frontmcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/agentfront/frontmcpWrote 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/agentfront/frontmcp/claude-md)<a href="https://agentmods.dev/instructions/agentfront/frontmcp/claude-md"><img src="https://agentmods.dev/badge/instructions/agentfront/frontmcp/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/agentfront/frontmcp/claude-md"><img src="https://agentmods.dev/badge/instructions/agentfront/frontmcp/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 | $0.06478 | $0.06478 |
| Opus 5.5 | $0.02591 | $0.02591 |
| Sonnet 5.5 | $0.01296 | $0.01296 |
| Haiku 4.5 | $0.00648 | $0.00648 |
Grade A, and why
frontmcp 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 15d 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 — 733 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skills and Tools
Auto-generated by
frontmcp skills install(v1.8.6) — do not edit manually.
This project uses FrontMCP skills installed in .claude/skills/.
Before writing code, search the installed skills for relevant guidance:
When you need to implement something, read the matching skill first — it contains patterns, examples, and common mistakes to avoid.
Documentation
FrontMCP's docs are at https://frontmcp.dev, built from the private agentfront/frontmcp.dev repository. This repo has no docs site: don't add one, and link to frontmcp.dev pages (https://frontmcp.dev/reference/..., https://frontmcp.dev/learn/...), never to docs.agentfront.dev for FrontMCP.
- The skills catalog (
libs/skills/catalog) is the documentation that ships with FrontMCP. A behavior change updates it in the same PR: see.claude/rules/skills-catalog-sync.md. - A PR that changes what users see (an API, option, default, error code or message, CLI flag or output) fills in the "User-facing change" section of
.github/pull_request_template.md. frontmcp.dev's pass for each release reads it.
FrontMCP Monorepo - Development Guide
Repository Structure
- Monorepo: Nx-based monorepo managing multiple TypeScript libraries
- Libraries Location:
/libs/* - each library is independent and publishable
Primary Libraries (scoped under @frontmcp/*)
Located in /libs/*:
- cli (
libs/cli) - Command-line interface - sdk (
libs/sdk) - Core FrontMCP SDK - adapters (
libs/adapters) - Framework adapters and integrations - plugins (
libs/plugins) - Plugin system and extensions - skills (
libs/skills) - Curated SKILL.md catalog for scaffold and install tooling
Note:
ast-guard,vectoriadb,enclave-vm,json-schema-to-zod-v3, andmcp-from-openapihave been moved to external repositories.
Demo Apps
Located in /apps/*:
- demo (
apps/demo) - Demo application for development and testing
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.
- 15d ago Changed · +33 tokens per session ae71d1450203
- 17d ago Changed · +3 lines · +40 tokens per session 7ee3e5ca585f
- 22d ago Changed · +6 lines · +141 tokens per session b8f11fcdb991
- 27d ago Changed · +1 lines 418c54d941c9
- 1mo ago Changed · +26 lines · +434 tokens per session 98d2fb8e4b50
- 1mo ago Changed 1b01304e7bb6
- 1mo ago First seen · 697 lines · 5,830 tokens per session scan A 8db304d14b55
frontmcp CLAUDE.md is an instructions file published in the GitHub repository agentfront/frontmcp (148 stars, last pushed 2d ago), licensed Apache-2.0. It adds 6,478 tokens to every session, about $0.0259 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).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.