[uniqueg]

Summary

Only a new head commit of a pull request now cancels its CI runs in progress: cancel-in-progress of the workflow-level concurrency block in .github/workflows/ci.yml is true only for pull_request with action synchronize on the first attempt, as in "Cancelled runs" of actions/gate/README.md in elixir-cloud-aai/.github (elixir-cloud-aai/.github#71):

cancel-in-progress: >-
  ${{ github.event_name == 'pull_request'
  && github.event.action == 'synchronize'
  && github.run_attempt == 1 }}

Before, a newer run on the same commit (e.g. for editing the description, also by Sourcery, or marking the pull request ready) cancelled the run in progress, and its failed CI passed was then the newest result on the commit, which blocked the merge (elixir-cloud-aai/.github#70). Runs for other actions, and reruns, now wait for the run in progress instead; a waiting run that is replaced starts no job, so it leaves no check. The gate keeps if: always(), so a needed job that failed or was cancelled still fails it. This pull request's own runs already use the new rule.

The concurrency groups are unchanged (runs for pushes and for edits that leave the title unchanged keep groups of their own); the comment above the block now describes the new rule.

Part of elixir-cloud-aai/.github#73

Verification

• pre-commit run --files on .github/workflows/ci.yml (all hooks of the repository): passed.
• CI: all checks passed, including CI passed, on 97a39db.
• Sourcery: 1 thread (a run for an older head that starts after the run for a newer head would cancel it): answered, not changed (the same with the previous rule; the newer head's gate fails closed), resolved.

Light lane: changes only the CI workflow's concurrency settings (no secrets, permissions or release workflow); I reviewed the diff myself.

Declined review findings

None.

Open questions

None.

🤖 Generated with Claude Code

https://claude.ai/code/session_011FSoqMpmDCfbACLj3uy6xV

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (65db464) to head (97a39db).

Additional details and impacted files

@@            Coverage Diff            @@
##               dev      #283   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            2         2           
  Lines          422       422           
=========================================
  Hits           422       422           

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[sourcery-ai]

Reviewer's Guide

Configuration

Restrict cancellation to first-attempt pull-request synchronize runs and update the workflow comment to explain the policy.

• .github/workflows/ci.yml L21-28, L36-39

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[sourcery-ai]

Hey - I've found 1 issue

Prompt for AI Agents

Please address the comments from this code review:

## Individual Comments

### Comment 1
<location path=".github/workflows/ci.yml" line_range="39" />
<code_context>
+  cancel-in-progress: >-
+    ${{ github.event_name == 'pull_request'
+    && github.event.action == 'synchronize'
+    && github.run_attempt == 1 }}

 jobs:
</code_context>
<issue_to_address>
**Newer commit loses CI gate**

When two synchronize runs for successive commits start out of order, `cancel-in-progress` does not compare head commits, so the older run cancels the newer run in the shared PR group; the older commit can pass while the newer commit's `passed` gate reports cancellation, blocking the merge.

Include the head commit in the cancellation decision so an older synchronize run cannot cancel a newer run.
</issue_to_address>

Sourcery assessment

Approval pending. 1 finding to address first.

Blocking findings: .github/workflows/ci.yml:39

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