#39 Show a friendly page when an address doesn't exist

Every step from GitLab's own records: the issue, its merge request and their label history.

1. Filed A visitor, on this site

   Screened and filed as a GitLab issue.

   22 Oct, 11:54 UTC

2. Triage accepted Triage agent ai-shipyard-triage-gitlab-ai-hackathon

   Wrote the acceptance criteria. Record

   22 Oct, 11:55 UTC · 1 min 9 s later

3. Build started Dispatcher

   Started the build agent with the criteria.

   22 Oct, 11:55 UTC · 1 s later

4. Merge request opened Build agent

   Add a "page not found" page in the site layout Record

   22 Oct, 11:58 UTC · 2 min 48 s later

5. In review Dispatcher

   Every test and scan passed; the review agent started.

   22 Oct, 12:00 UTC · 1 min 56 s later

6. Approved Review agent ai-shipyard-review-gitlab-ai-hackathon

   Checked against the criteria.

   22 Oct, 12:01 UTC · 58 s later

7. Merged Dispatcher

   Merged at the reviewed commit, with a release decision record. Record

   22 Oct, 12:01 UTC · 6 s later

8. On staging Pipeline

   Merged, deployed to staging and smoke-tested.

   22 Oct, 12:06 UTC · 5 min 8 s later

9. Live Pipeline

   Passed a canary and a 60-second watch in production.

   22 Oct, 12:09 UTC · 2 min 13 s later

Why it was safe to merge

What the dispatcher verified before merging, from its release decision record (open it).

• Pipeline ✅ #2976361334 passed at 010c18f0: 12 jobs
• Tests ✅ 466 passed, 0 failed
• Security gate ✅ no blocking findings after SAST, secret detection, dependency audit, image scan, licences and SBOM
• Scope policy ✅ 3 files changed, all inside the agent scope
• Authority boundary ✅ protected policy tests passed
• Review ✅ review::approved added by ai-shipyard-review-gitlab-ai-hackathon (the review flow's own account), verified in GitLab's label history
• GitLab approval ✅ approval rule satisfied at 010c18f0
• Scope of work ✅ closes #39; reviewed against the triage agent's acceptance criteria
• Fix attempts · none needed