cases6

1. 2026-10-10 A required tool is assumed to be installed on whichever machine runs the job

   now fails loudly the step that checks for a required tool installs it when it is absent, instead of only adding its presumed directory to the search path

   ChangeStructuralSmoke Tests

2. 2026-09-13 Moving a repo layout's root is one mechanical change

   now fails loudly A test that silently skips because a path does not exist is a failed test; environment checks that mask defaults are recorded as overrides, and the defaults themselves are tested without them.

   ChangeBehavioralIntegration TestsPre-Promotion Invariant Gates

3. 2026-09-12 Renaming a repo and updating its topology entry is one operation

   now fails loudly The deploy gate refuses when the topology file and the filesystem disagree about which repos exist; a worker with a schedule attached is not a worker — it is skipped by collect and never rendered as down.

   ChangeInvariantsPre-Promotion Invariant GatesStatically Checked Invariants

4. 2026-09-12 An AI reviewer that reports an approval has posted one

   now fails loudly A review counts only when the forge API shows it submitted with a verdict; until the tool submits, the merge record is the evidence and the reviewer's own result is not.

   ChangeHuman ComprehensionIndependent ReviewSecond-Agent Review

5. 2026-09-06 Looking up a DNS name before creating it is harmless

   now fails loudly Absence is probed only against the authoritative nameserver; the user's own resolver is queried last, and only to read what it already believes.

   RuntimeChangeSynthetic Monitoring

6. 2026-09-06 Validating a web server's config only reads it

   now fails loudly Config validation runs as the service user, and a smoke request against the new host is what declares the deploy done — not the validator's exit code.

   ChangeRuntimePre-Promotion Invariant GatesSmoke Tests