E01 · F02 · CHK-002 — Checkpoint in the middle of F02
Pause between the polygon contour and the rounding and playground stories of F02: bring documentation and methods up to date as the project grows, before going on (ADR-0028, /run skill).
Acceptance criteria
- Given the stories merged since the spike, when the checkpoint runs, then
docs/domain/, derivations, references, conventions,CLAUDE.mdand.claude/rules/describe the code as it is. - Given the light evolvability check, when it runs, then each of its six questions has a one-line answer and anything worth acting on is in the improvement log.
- Given the user stories merged so far, when the checkpoint ends, then their Product Owner test cards are listed for the next stop.
Tasks
One task = one commit, referenced as CHK-002.Tn.
Light evolvability check (2026-10-09)
| Question | Answer |
|---|---|
| Size | 52 modules in src/ (geometry 21, math 11, model 10, io 6, render 4); 287 tests; check:all 28 s with deps:tools (23 s at CHK-001); no layer close to a package split |
| Tools | StrykerJS still blocked (stryker-js issue 6210 open); the auditor keeps the mutation role and every story added mutation checks. knip still waiting for the retrospective. New on main: npm run deps:tools (GitHub Actions, Node.js LTS), asked by the Product Owner; the feature branch was rebased on main to get it |
| Fitness functions | nothing new; "every exported math / geometry function has a property test" holds for the three new geometry functions (and for regularPolygonContour) — still a candidate check |
| Patterns | test helpers repeat: expectPoints in two test files, the shoelace signed area in two; the size rule was duplicated and is now isModelSize (US-005 review) — improvement log |
| Agent configuration | CLAUDE.md + rules 184 lines; state line and tooling rule updated; guards never hit in this run |
| Process | the auditor now reviews before the done commit (EN-008 had to reorder its commits; /run steps 2 and 5 now say so); every review changed the story before merge (3 for 3) |
Product Owner test cards so far
None yet in F02: US-005 has no playground of its own; US-007 will carry the card that also shows US-005 and US-006.