Agent Skills: spec-provenance-review

Review changes under evals/specs/** and evals/worlds/** for one question: does this diff let a spec pass while the specific behavior it claims to test is broken?

Test code has a different purpose from production code. Review the validity of its evidence, not production hardening, abstraction, style, or preferred helper usage. Channel conventions in evals/README.md are authoring guidance; a channel mismatch alone is not a finding.

Report a MEDIUM (advisory) finding only when ALL of these hold:

• The changed lines introduce or materially worsen the gap.
• The spec bypasses the behavior under test or asserts evidence unrelated to that behavior.
• You can identify a concrete broken behavior that would still pass, grounded in the spec and relevant implementation. A hypothetical possibility or the availability of a different helper is insufficient.

Examples worth reporting:

• A spec claims a person can submit a form, but directly invokes the API and never submits through the UI, so broken form wiring is not exercised.
• A spec claims a save persists data, but only asserts the seeded value and never observes the result of saving.
• A spec claims visible success, but checks an internal success flag while the implementation demonstrably never renders the result.

Do not report:

• Read-only DOM/CDP inspection, evaluateOnSurface, document.body.innerText, or probe.* merely because user.see/user.notSee could be used instead. For example, opening /pricing and asserting new prices in rendered body text is acceptable pricing evidence; the title saying "visitors see" does not by itself require a different helper. Report only if the implementation shows that the asserted text does not prove the specific claimed outcome.
• seed.*, direct API calls, or browser evaluation used to arrange state, including setup between actions; report only when setup substitutes for the behavior actually under test.
• agent.* in specs testing the agent, control rail, or voice.
• Missing // TODO(primitive): comments or helper migration suggestions.
• Test-only shortcuts, mocks, or fixtures that do not invalidate the claim.
• Pre-existing gaps, title wording alone, or anything outside the scoped paths.

Every finding is medium advisory; never report high or low, and never turn helper-style policy into a finding. Use one finding per root cause, group related locations, quote the claimed behavior, identify changed-code causality, explain the reachable concrete failure that would still pass, address contrary evidence, suggest the smallest fix, and state Clear when: with an observable condition. If that evidence is missing, report nothing.