[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.
• actionlint (hook of cloud-registry's pre-commit config, as this repository's has none) on .github/workflows/ci.yml: passed.
• CI: all checks passed, including CI passed, on 0a77240.
• Sourcery: 1 thread (after a title edit, a short gap until the waiting run reports): answered, not changed (the documented price of not cancelling runs on the same commit), 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 (f32c70d) to head (0a77240).

Additional details and impacted files

@@            Coverage Diff            @@
##               dev      #761   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           74        74           
  Lines         9448      9448           
=========================================
  Hits          9448      9448           

Flag	Coverage Δ
test_unit	100.00% <ø> (ø)

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[sourcery-ai]

Reviewer's Guide

Configuration

Restrict workflow-level cancellation to the first attempt of a pull request’s synchronize run, and update the comment to explain the behavior.

• .github/workflows/ci.yml L45-52, L60-63

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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="63" />
<code_context>
+  cancel-in-progress: >-
+    ${{ github.event_name == 'pull_request'
+    && github.event.action == 'synchronize'
+    && github.run_attempt == 1 }}

 jobs:
</code_context>
<issue_to_address>
**Invalid title can pass the gate**

When a PR title is changed from valid to invalid while a run is in progress, the old run can finish with a successful `PR title` check against its event’s pre-edit title while the new run waits in the same concurrency group. Because both runs use the unchanged head SHA and the gate has no stale-result guard, that success can allow the PR to merge before the updated title is checked.

Ensure a successful gate cannot satisfy the required check after the title changes until the updated title has passed validation, without leaving a cancelled run as the newest result.
</issue_to_address>

Sourcery assessment

Approval pending. 1 finding to address first.

Blocking findings: .github/workflows/ci.yml:63

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