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 skills add Community-Access/accessibility-agents --skill kb-python-developmentgit 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/kb-python-development)<a href="https://agentmods.dev/skills/community-access/accessibility-agents/kb-python-development"><img src="https://agentmods.dev/badge/skills/community-access/accessibility-agents/kb-python-development/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/skills/community-access/accessibility-agents/kb-python-development"><img src="https://agentmods.dev/badge/skills/community-access/accessibility-agents/kb-python-development.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 | $0.00039 | $0.02592 |
| Opus 5.5 | $0.00016 | $0.01037 |
| Sonnet 5.5 | $0.00008 | $0.00518 |
| Haiku 4.5 | $0.00004 | $0.00259 |
Grade A, and why
kb-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 24d 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 — 295 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
Each version, with its key features and EOL.
| 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
Sizer Cheat Sheet
Each sizer, with when to use.
| Sizer | When to Use |
|---|---|
wx.BoxSizer(wx.VERTICAL) |
Stack items top-to-bottom |
wx.BoxSizer(wx.HORIZONTAL) |
Lay items left-to-right |
wx.GridBagSizer(vgap, hgap) |
Form layouts with labels + controls |
wx.FlexGridSizer(rows, cols, vgap, hgap) |
Even grid layouts |
wx.WrapSizer |
Flow layout that wraps |
wx.StaticBoxSizer(wx.VERTICAL, parent, "Label") |
Grouped controls with border |
What ships with it
1 file 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.
- 24d ago First seen · 295 lines · 39 tokens per session scan A 0f2dcec6ca55
kb-python-development is a skill published in the GitHub repository Community-Access/accessibility-agents (425 stars, last pushed 24d ago), licensed MIT. It adds 39 tokens to every session and 2,592 once invoked, about $0.0002 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 2026-09-23.
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