Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/bobmatnyc/claude-mpm/toolchains-python-tooling-mypynpx skills add bobmatnyc/claude-mpm --skill toolchains-python-tooling-mypygit clone --depth 1 https://github.com/bobmatnyc/claude-mpmWrote 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/skills/bobmatnyc/claude-mpm/toolchains-python-tooling-mypy)<a href="https://agentmods.dev/skills/bobmatnyc/claude-mpm/toolchains-python-tooling-mypy"><img src="https://agentmods.dev/badge/skills/bobmatnyc/claude-mpm/toolchains-python-tooling-mypy.svg" alt="Measured on agentmods" 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 | $0.00024 | $0.07712 |
| Opus 5 | $0.00012 | $0.03856 |
| Sonnet 5 | $0.00005 | $0.01542 |
| Haiku 4.5 | $0.00002 | $0.00771 |
Grade A, and why
mypy 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 today.
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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- today First seen · 1,296 lines · 24 tokens per session scan A fa5514bc2a1b
mypy is a skill published in the GitHub repository bobmatnyc/claude-mpm (149 stars, last pushed 3d ago), with no licence file. It adds 24 tokens to every session and 7,712 once invoked, about $0.0001 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 2026-09-03.
Other skills, from other repositories
mypy
Skill "mypy" from bobmatnyc/claude-mpm-skills, covering mypy - static type checking for python, basic mypy, with common type stubs, for fastapi projects and for django projects.
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Skill "pytest" from bobmatnyc/claude-mpm-skills, covering pytest - professional python testing, basic pytest, with common plugins, for fastapi testing and for django testing.
python-review
Python Code Review: Reviews Python code for quality, patterns, and best practices across Django, FastAPI, Flask, async/await, data processing, and general Python. Covers type hints, error handling, Pythonic patterns, security, performance, and testing. Use when the user wants a review of Python code, mentions .py…
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Use this skill when the user asks about Clean Architecture in Python — not generic theory, but the specific layer conventions (l1entities, l2usecases, l3interfaceadapters, l4frameworksanddrivers), folder patterns, boundary interfaces, and .importlinter.ini contracts from CJHwong/py-clean-architecture-examples. Fetches…
fastapi-local-dev
FastAPI dev/prod runbook (Uvicorn reload, Gunicorn).
code-quality
Python code-quality anti-patterns and review checks: exception-hierarchy correctness, singleton identity comparison, narrow exception handling, wildcard-import avoidance, magic-number naming, and dead-local removal. Use when reviewing or self-reviewing Python code for correctness and readability defects that linters…