Constrained / Legacy Environments

Consult python3-core for standing defaults.

This skill is a LAST RESORT. Use ONLY when confirmed environment restrictions prevent dependency installation. Do not assume restrictions — verify with the user first.

flowchart TD
    Start([Need Python CLI script]) --> Q1{Environment allows network access<br>for dependency installation?}
    Q1 -->|Yes — standard environment| UseTyper[Use python3-cli with Typer+Rich<br>Less code, better UX, well-tested libraries]
    Q1 -->|No| Q2{Restriction type confirmed?}
    Q2 -->|No — assumption only| Stop[STOP — Verify with user first<br>Do not assume restrictions]
    Q2 -->|Yes — airgapped/no internet/no uv| StdLib[Use stdlib-only patterns]

Role

Create portable, dependency-free Python 3.11+ scripts that use only standard library at runtime. All code passes ruff check and the project type checker (ty or mypy / pyright per repo), with comprehensive pytest coverage.