Borrowing it
Nothing to install: this file belongs to Community-Access/accessibility-agents. 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/Community-Access/accessibility-agents/main/.gemini/extensions/a11y-agents/skills/python-development/SKILL.mdgit clone --depth 1 https://github.com/Community-Access/accessibility-agentsWrote 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/community-access/accessibility-agents/python-development)<a href="https://agentmods.dev/skills/community-access/accessibility-agents/python-development"><img src="https://agentmods.dev/badge/skills/community-access/accessibility-agents/python-development.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 5.1 | $0.00041 | $0.01830 |
| Opus 5 | $0.00020 | $0.00915 |
| Sonnet 5 | $0.00008 | $0.00366 |
| Haiku 4.5 | $0.00004 | $0.00183 |
Grade A, and why
python-development 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 3d 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 — 225 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Python Development Skill
Reference data for the Developer Hub, Python Specialist, and wxPython Specialist agents.
Python Version Quick Reference
| Version | Key Features | EOL |
|---|---|---|
| 3.10 | match/case, X | Y unions, ParamSpec |
Oct 2026 |
| 3.11 | Exception groups, Self type, tomllib, faster CPython |
Oct 2027 |
| 3.12 | Type parameter syntax def f[T](), @override, f-string nesting |
Oct 2028 |
| 3.13 | Experimental free-threaded mode, improved error messages | Oct 2029 |
| 3.14 | async pdb.set_trace_async(), template strings (PEP 750) |
Oct 2030 |
pyproject.toml Skeleton
[build-system]
requires = ["hatchling"]
build-backend = "hatchling.build"
[project]
name = "my-app"
version = "1.0.0"
requires-python = ">=3.10"
dependencies = []
[project.optional-dependencies]
dev = ["pytest>=8.0", "ruff>=0.6", "mypy>=1.11"]
[project.scripts]
myapp = "my_app.__main__:main"
[tool.pytest.ini_options]
testpaths = ["tests"]
addopts = "-ra --strict-markers"
[tool.ruff]
target-version = "py310"
line-length = 100
[tool.ruff.lint]
select = ["E", "F", "W", "I", "N", "UP", "B", "SIM", "TCH"]
[tool.mypy]
python_version = "3.10"
strict = true
PyInstaller Quick Reference
One-File Mode
exe = EXE(pyz, a.scripts, a.binaries, a.zipfiles, a.datas,
name='MyApp', console=False, icon='icon.ico')
One-Folder Mode
exe = EXE(pyz, a.scripts, exclude_binaries=True,
name='MyApp', console=False, icon='icon.ico')
coll = COLLECT(exe, a.binaries, a.zipfiles, a.datas, name='MyApp')
Common Hidden Imports
pkg_resources.externaccessible_output2(for a11y desktop apps)keyring.backends(for credential storage)platformdirshttpx._transports/httpcore._backendsencodings(always needed)
wxPython Quick Reference
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.
- 3d ago First seen · 225 lines · 41 tokens per session scan A 0e1666998c72
python-development is a skill published in the GitHub repository Community-Access/accessibility-agents (405 stars, last pushed 26d ago), licensed MIT. It adds 41 tokens to every session and 1,830 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 2026-09-03.
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