Borrowing it
Nothing to install: this file belongs to gaarutyunov/mcp-anything. 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/gaarutyunov/mcp-anything/main/CLAUDE.mdgit clone --depth 1 https://github.com/gaarutyunov/mcp-anythingWrote 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/gaarutyunov/mcp-anything/claude-md)<a href="https://agentmods.dev/instructions/gaarutyunov/mcp-anything/claude-md"><img src="https://agentmods.dev/badge/instructions/gaarutyunov/mcp-anything/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/gaarutyunov/mcp-anything/claude-md"><img src="https://agentmods.dev/badge/instructions/gaarutyunov/mcp-anything/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 | $0.01025 | $0.01025 |
| Opus 5 | $0.00513 | $0.00513 |
| Sonnet 5 | $0.00205 | $0.00205 |
| Haiku 4.5 | $0.00103 | $0.00103 |
Grade A, and why
mcp-anything 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.
How it starts
The opening of the file, as written. The whole thing — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md — AI Agent Instructions for mcp-anything
Project
mcp-anything is a stateless Go proxy that converts HTTP REST APIs into MCP (Model Context Protocol) tools. Full design: SPEC.md
Module
github.com/gaarutyunov/mcp-anything
Commands
Build
make build # go build ./cmd/proxy
Lint (must pass before every commit)
make lint # golangci-lint run ./...
Vet (must pass before every commit)
make vet # go vet ./...
Unit tests (must pass before every commit)
make test # go test -race -count=1 ./...
Integration tests (require Docker)
make integration # go test -tags integration ... ./tests/integration/...
Without PROXY_IMAGE, tests build the proxy from source using the Dockerfile. Set PROXY_IMAGE to test against a pre-built image (used in CI).
All checks (run before every commit)
make check # runs lint + vet + test + build in sequence
Pre-commit checklist
- Run
make checkand fix all failures before committing. - Run
make integrationand fix all failures before committing.
Never commit with failing lint, vet, unit tests, or integration tests.
Integration tests
Integration tests live in tests/integration/ with build tag //go:build integration. They run the proxy as a Docker container alongside test fixtures (WireMock, etc.) using Testcontainers. They do NOT import internal packages — they test the built image end-to-end via HTTP and MCP protocol.
You MUST run make integration after implementing any feature or fix and ensure all integration tests pass. If an integration test fails, diagnose and fix the issue before committing. Do not skip or ignore integration test failures.
No panicking
NEVER use panic() anywhere in this codebase — not in library code, not in init(), not in factories, not in tests.
All error conditions must be surfaced by returning an error value. Functions that can fail must return (*T, error) or error. Call sites must propagate or wrap errors using fmt.Errorf("context: %w", err).
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.
- 11d ago First seen · 102 lines · 1,025 tokens per session scan A 7028fd4dc06c
mcp-anything CLAUDE.md is an instructions file published in the GitHub repository gaarutyunov/mcp-anything (2 stars, last pushed 11d ago), licensed Apache-2.0. It adds 1,025 tokens to every session, about $0.0051 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 2026-08-31.
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