The sample payload fixture already pins the published JSON bodies, but the dated provenance lines remained free text. This adds a tiny checked-in provenance fixture and a regression that requires both delivery-tracking docs to keep the verified date/invoice sentence immediately adjacent to each sample JSON block.
Constraint: Keep the docs regression offline and fixture-backed without adding live network calls to CI
Rejected: Inlining the expected date/invoice literals in the test | harder to keep the docs provenance contract explicit and reusable
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Update the provenance fixture whenever the published smoke-test date or invoice examples change
Tested: node --test scripts/skill-docs.test.js; npm run ci; python3 /tmp/cj_verify.py; npx --yes skills add . --list; architect verification
Not-tested: python3 /tmp/epost_verify.py (service.epost.go.kr timed out with curl exit 28 from this environment)
Jeffrey (Dongkyu) Kim