Create a feature-level test plan from acceptance criteria and add it to the feature spec.
AGENTS.md
codex.toml
spec/features/<work-id>-<slug>/
<work-id>
S-<stream>-<nnn>
S-core-001
spec/features/
feature.md
test-plan.md
artifacts/smoke/...
write-tests
Next recommended skill:
Run $write-tests <work-id> to implement the planned unit/integration/edge-case tests.