alexei-led/writing-python
dist/codex/plugins/py-dev/skills/writing-python/SKILL.md
Idiomatic Python 3.12+ development. Use when writing Python code, CLI tools, scripts, or services. Emphasizes stdlib, type hints, uv/ruff/pyright toolchain, and minimal dependencies. NOT for Go, TypeScript, or shell-only tasks.
$ install --global
skillsauthnpx skillsauth add alexei-led/claude-code-config writing-pythonInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Jun 2, 2026, 2:13 AM123.2s1 file scanned
SKILL.md
- description:
- Idiomatic Python 3.12+ development. Use when writing Python code, CLI
- name:
- writing-python
Python Development
Use this only for Python 3.12+ code. Keep language-agnostic rules out of this skill.
Read First
Read principles.md before generating or changing Python code.
Core Rules
- Prefer existing project patterns over these defaults.
- Inspect the project Python target before using 3.12-only syntax.
- Prefer stdlib and existing dependencies before adding packages.
- Validate untyped boundary input before it spreads.
Conditional References
- patterns.md — read for module design, typing, async, config, file I/O, and error patterns.
- cli.md — read before writing or changing Python CLIs.
- testing.md — read before adding or reshaping Python tests.
Verification
Run project-configured tests, lint, format, and type checks. Prefer pytest, ruff, and pyright when present.
If a tool is not configured, say so and run the closest available gate. If a check fails, diagnose the cause, make a targeted fix, and rerun the relevant check.
Python-Specific Failure Cases
- No clear project root: locate
pyproject.tomlbefore editing or choosing commands. - Unknown Python target: inspect
pyproject.toml,.python-version, CI, or lockfiles before using 3.12-only syntax. - Type checker reports missing attributes: check imports, package exports, and runtime shape before loosening types.
Final Response
Include:
- changed files
- checks run and results
- checks skipped with reasons
- remaining risks or follow-ups
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