<problem_description>$ARGUMENTS</problem_description>

Python Functional Bug Investigation

The model investigates functional bugs using specifications, logs, and observed behavior to scope the problem before implementing fixes.

Arguments

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Instructions

Consult ../python3-development/references/python3-standards.md when applying shared architecture, typing, testing, or CLI rules; full standards, graphs, and amendment process are documented there.

1. Gather context from user (spec, logs, reproduction steps)
2. Scope the problem (what works, what doesn't, boundaries)
3. Form hypotheses about root cause
4. Investigate systematically with evidence
5. Propose fix only after understanding root cause