What is sec-mcp CLAUDE.md?

Project instructions for a Python package and command-line tool that checks domains, URLs, and IP addresses against security blacklists. They document build and test commands, Python environment rules, and the current test baseline.

They help an agent build the package, run all or individual tests, use an existing virtual environment, and judge whether a change preserves the recorded test result.

They give a coding agent the commands and environment constraints needed to work safely in the repository. They also distinguish existing test failures from regressions caused by new changes.

How Montimage/sec-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to Montimage/sec-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.

Copy the file

curl -O https://raw.githubusercontent.com/Montimage/sec-mcp/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/Montimage/sec-mcp

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/montimage/sec-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/montimage/sec-mcp/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/montimage/sec-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/montimage/sec-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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/montimage/sec-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/montimage/sec-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 192 This file is loaded in full into every session.

When invoked 192 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.

Model	Per session	Once invoked
Fable 5.1	$0.00192	$0.00192
Opus 5.5	$0.00077	$0.00077
Sonnet 5.5	$0.00038	$0.00038
Haiku 4.5	$0.00019	$0.00019

Measured 1mo ago against content hash 9b4284a1df2f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sec-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.

CLAUDE.md · 12 lines

What it actually says

@AGENTS.md

Commands

Build the package: python -m build
Run the test suite: pytest -q -p no:cacheprovider
Prefer a single test file while iterating: pytest -q -p no:cacheprovider sec_mcp/tests/test_x.py
Full toolchain + env notes → docs/agent-env.md

Claude-only

Before running Python, check for an existing venv (.venv/, venv/) and activate it — or use uv run; never install into the system Python.
Test baseline R: 32/64 passed — the suite is fully green since #55 (the known-RED :memory: tests were retargeted to real DBs); the scripts/check_test_baseline.sh floor stays 32/64 so a change is still done when it does not regress below R.

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.

1mo ago Changed · +21 tokens per session 9b4284a1df2f
1mo ago First seen · 12 lines · 171 tokens per session scan A 9c2db921db78

Subscribe to this mod's changes

sec-mcp CLAUDE.md is an instructions file published in the GitHub repository Montimage/sec-mcp (4 stars, last pushed today), licensed Apache-2.0. It adds 192 tokens to every session, about $0.0008 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 2026-09-19.

Security Testing Unit testing mcp-server security-tools

sec-mcp CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
sec-mcp CLAUDE.mdMontimage/sec-mcp	Instructions file	4	today	Apache-2.0	A	192	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

sec-mcp: Instructions file for Claude Code