Derivation QC for PHYS130B—every derivation touch follows rules/derivation-quality.md (read _refs first, outline chain, full steps, structural diff vs professor notes). Aligns with _refs/; proposes scoped fixes only; notebook-writer implements.
Design and audit lecture narrative, pedagogy, structure, prompts, homework, projects, and discussion boxes for PHYS130B—align with rules without implementing .ipynb edits. Pair with notebook-writer for implementation.
Ch4–6 phased notebook maintenance (validate → notation → style → derivation quality). Use when progress.md phase cursor, auditing the next notebook in the round, or user says maintenance phases / phase A–D.
Safe read/write and validation for PHYS130B Jupyter notebooks under notes_src. Use when editing, fixing, or restructuring any .ipynb.
Design and audit Prompts boxes (cell 1) for PHYS130B notebooks—specify LLM-preview questions; implementation via notebook-writer only. Triggers on prompt review, stale prompts after lecture edits, new notebook prompts, or cell 1 quality issues.
Design and audit `### Summary` and `See Also` blocks in PHYS130B—templates, bullets, cross-links; specify changes for notebook-writer. Use when auditing summaries or See Also consistency.
Design and audit homework problems for PHYS130B—quality, formatting specs, AI-era pedagogy; implementation via notebook-writer. Use for new problems, homework review, or formatting fix specs.