Claude Skills by cyberchitta

cad-khana's delta on the shared notes machinery — which `_notes/` file plays which role in the demand-driven loop (worklist, field-notes, slice briefs, two-way handoffs, adoption inventory), the bookkeeping a session owes when a slice closes, and the traps that have actually bitten (stale commit SHAs after a history rewrite, consolidating shipped `ideas.md` rows, deleting a field-note that still backs an open row, promoting at f×1 on a rationale the policy doesn't name). Invoke before updatin...

Diagnostics-first CAD wrapper around Build123d: assembly-level interference/clearance assertions plus optional per-part printability checks. Load BEFORE editing an `assembly.py` that uses the wrapper or interpreting its diagnostic JSON — SKILL.md has conventions the scripts rely on but don't restate. TRIGGER: about to run `khana check`/`build`/`view`/`draw`, or editing a file that imports `cad_khana` or calls `Assembly()`/`check()`/`inspect()`.