Port two responsibilities from Gemini's mma-tier2-tech-lead SKILL.md (b4de62f,7afa3f3) to Claude's equivalent command file: - ATOMIC PER-TASK COMMITS: enforce per-task commit discipline - Meta-Level Sanity Check: ruff + mypy post-track verification Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>