diff --git a/.github/workflows/maint-71-merge-sync-prs.yml b/.github/workflows/maint-71-merge-sync-prs.yml
index 7e13699d4..1bc57ca81 100644
--- a/.github/workflows/maint-71-merge-sync-prs.yml
+++ b/.github/workflows/maint-71-merge-sync-prs.yml
@@ -267,8 +267,13 @@ jobs:
             process.env.DISPATCH_SYNC_HASH,
           ].map((value) => String(value || '').trim()).find(Boolean) || '';
           const selector = raw.startsWith(prefix) ? raw.slice(prefix.length) : raw;
-          if (selector && !['candidate', 'campaign'].includes(selector)) {
-            throw new Error('active sync selector must be candidate or campaign');
+          const namedSelectors = new Set(['candidate', 'campaign', 'delivery', 'dev-tool']);
+          const legacyHash = /^[0-9a-f]{12,64}$/i.test(selector);
+          if (selector && !namedSelectors.has(selector) && !legacyHash) {
+            throw new Error(
+              'active sync selector must be candidate, campaign, delivery, dev-tool, ' +
+              'or a legacy hex hash',
+            );
           }
           fs.appendFileSync(process.env.GITHUB_OUTPUT, `selector=${selector}\n`);
           fs.appendFileSync(process.env.GITHUB_OUTPUT, `candidate=${selector === 'candidate'}\n`);
diff --git a/tests/workflows/test_sync_delivery_liveness.py b/tests/workflows/test_sync_delivery_liveness.py
index 31772bb4b..da56b51c3 100644
--- a/tests/workflows/test_sync_delivery_liveness.py
+++ b/tests/workflows/test_sync_delivery_liveness.py
@@ -31,7 +31,9 @@ def test_maint71_has_proof_bound_review_resolution_and_exact_evidence_promotion(
     assert "canary_evidence_json: JSON.stringify(evidence)" in workflow
     assert "cancel-in-progress: false" in workflow
     assert "EXCLUDED_REPOS_INPUT: stranske/Collab-Admin" in workflow
-    assert "active sync selector must be candidate or campaign" in workflow
+    assert "['candidate', 'campaign', 'delivery', 'dev-tool']" in workflow
+    assert "/^[0-9a-f]{12,64}$/i.test(selector)" in workflow
+    assert "active sync selector must be candidate, campaign, delivery, dev-tool, " in workflow
     assert "'stale_closed'" in workflow
     assert "paginateWithRetry(api.rest.actions.listWorkflowRuns" in workflow
     assert "Maint 71 requires OWNER_PR_PAT" in executor