python-code-quality

A set of commands for checking Python code for syntax, formatting, style, and type errors in the Agent Framework codebase.

In plain words
What is it for?
Run formatting and lint checks, check source and test types with several type checkers, and narrow checks to selected packages or samples.
Why use it?
It helps catch mistakes before code review or continuous integration (automated checks that run on changes), and helps locate errors when those checks fail.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/microsoft/agent-framework/python-code-quality
Any agent
npx skills add microsoft/agent-framework --skill python-code-quality
Clone the repo
git clone --depth 1 https://github.com/microsoft/agent-framework

Made for: Claude Code, Codex.

Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,471 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00040 $0.01471
Opus 5 $0.00020 $0.00736
Sonnet 5 $0.00008 $0.00294
Haiku 4.5 $0.00004 $0.00147

Measured yesterday against content hash c253509caa0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

python-code-quality 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 yesterday.

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.

python/.github/skills/python-code-quality/SKILL.md · 136 lines

How it starts

The opening of the file, as written. The whole thing — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Python Code Quality

Quick Commands

All commands run from the python/ directory:

# Syntax formatting + checks (parallel across packages by default)
uv run poe syntax
uv run poe syntax -P core
uv run poe syntax -F    # Format only
uv run poe syntax -C    # Check only
uv run poe syntax -S    # Samples only

# Type checking
#
# Division of labor (see "Type checking architecture" below):
#   - Pyright (strict) is the source-code type checker.
#   - Pyright (relaxed `basic`), mypy, pyrefly, ty, zuban all check the TESTS;
#     pyright/pyrefly/ty also check the SAMPLES (mypy/zuban skip script-style samples).
uv run poe pyright       # Pyright (strict) over SOURCE, fan-out across packages
uv run poe pyright -P core
uv run poe pyright -A
uv run poe test-typing   # mypy + pyrefly + ty + zuban + pyright over each package's TESTS
uv run poe test-typing -P core
uv run poe test-typing -S                       # samples (pyrefly + ty + pyright)
uv run poe test-typing -P core --checker mypy   # narrow to one checker (repeatable)
uv run poe test-typing -P core --checker pyright # relaxed pyright over the tests
uv run poe mypy          # alias: MyPy over the tests only
uv run poe mypy -P core
uv run poe typing        # Pyright (source) + the tests checkers
uv run poe typing -P core
uv run poe typing -A

# All package-level checks in parallel (syntax + pyright)
uv run poe check-packages

# Full check (packages + samples + tests + markdown)
uv run poe check
uv run poe check -P core

# Samples only
uv run poe check -S
uv run poe pyright -S

# Markdown code blocks
uv run poe markdown-code-lint

Pre-commit Hooks (prek)

Prek hooks run automatically on commit. They stay lightweight and only check changed files.

# Install hooks
uv run poe prek-install

# Run all hooks manually
uv run prek run -a

# Run on last commit
uv run prek run --last-commit

They run changed-package syntax formatting/checking, markdown code lint only when markdown files change, and sample syntax lint/pyright only when files under samples/ change. They intentionally do not run workspace pyright or mypy by default.

Read the full file on GitHub · 136 lines

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.

  1. yesterday First seen · 136 lines · 40 tokens per session scan A c253509caa0a

Subscribe to this mod's changes

python-code-quality is a skill published in the GitHub repository microsoft/agent-framework (13,222 stars, last pushed 2d ago), licensed MIT. It adds 40 tokens to every session and 1,471 once invoked, about $0.0002 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 2026-08-30.

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