## Routes added to artifacts/api-server/src/routes/testkit.ts
### GET /api/testkit/plan
- Returns TIMMY_TEST_PLAN.md verbatim as text/markdown; charset=utf-8
- Reads file at request time (not on startup) so edits to the plan are picked
up without server restart
- Path resolves via import.meta.url + dirname() → 4 levels up to project root
(handles both dev/tsx and compiled dist/routes/ directories)
### GET /api/testkit/report
- Returns only the content from "## Report template" heading to end-of-file
- Content-Type: text/plain; charset=utf-8 — ready to copy and fill in
- Slice is found with indexOf("## Report template"); 500 if marker absent
- Uses the same PLAN_PATH as /api/testkit/plan (single source of truth)
## Deviation: __dirname → import.meta.url
Original plan said "resolve relative to project root regardless of cwd".
The codebase runs as ESM (tsx / ts-node with ESM), so __dirname is not
defined. Fixed by using dirname(fileURLToPath(import.meta.url)) instead —
equivalent semantics, correct in both dev and compiled output.
## AGENTS.md — Testing section added
Three-step workflow documented between "Branch and PR conventions" and
"Stub mode" sections:
1. curl <BASE>/api/testkit/plan — fetch plan before starting
2. curl -s <BASE>/api/testkit | bash — run suite after implementing
3. curl <BASE>/api/testkit/report — fetch report template to fill in
## Unchanged
- GET /api/testkit bash script generation: untouched
- No new test cases or script modifications
## TypeScript: 0 errors. Smoke tests all pass:
- /api/testkit/plan → 200 text/markdown, full TIMMY_TEST_PLAN.md content
- /api/testkit/report → 200 text/plain, starts at "## Report template"
- /api/testkit → 200 bash script, unchanged
