3 changed files with 17 additions and 0 deletions
@@ -32,6 +32,12 @@ on:
  # iterating all open PRs when PR_NUMBER is empty.
  workflow_dispatch:

+# Cancel stale runs so the 8-runner pool stays available for PR jobs.
+# Per-SHA group ensures push and cron runs at different SHAs don't cancel each other.
+concurrency:
+  group: gate-check-v3-${{ github.event.pull_request.head.sha || github.sha }}
+  cancel-in-progress: true
+
 permissions:
  # read: contents — for checkout (base ref, not PR head for security)
  # read: pull-requests — for reading PR info via API
@@ -44,6 +44,12 @@ on:
      - ".github/scripts/lint_secret_pattern_drift.py"
      - ".githooks/pre-commit"

+# Cancel stale runs to keep the 8-runner pool available for PR jobs.
+# Per-SHA group ensures push and scheduled runs at different SHAs don't cancel each other.
+concurrency:
+  group: secret-pattern-drift-${{ github.event.pull_request.head.sha || github.sha }}
+  cancel-in-progress: true
+
 env:
  GITHUB_SERVER_URL: https://git.moleculesai.app

@@ -22,6 +22,11 @@ on:
    - cron: '17 4 * * 1'  # Mondays at 04:17 UTC
  workflow_dispatch:

+# Cancel stale runs to keep the 8-runner pool available for PR jobs.
+concurrency:
+  group: weekly-platform-go-${{ github.event.pull_request.head.sha || github.sha }}
+  cancel-in-progress: true
+
 permissions:
  contents: read
  statuses: write