diff --git a/src/resources/extensions/gsd/dispatch-guard.ts b/src/resources/extensions/gsd/dispatch-guard.ts
index 59df30db1..c687f1b30 100644
--- a/src/resources/extensions/gsd/dispatch-guard.ts
+++ b/src/resources/extensions/gsd/dispatch-guard.ts
@@ -5,6 +5,7 @@ import { findMilestoneIds } from "./guided-flow.js";
 import { parseUnitId } from "./unit-id.js";
 import { isDbAvailable, getMilestoneSlices } from "./gsd-db.js";
 import { parseRoadmap } from "./parsers-legacy.js";
+import { isClosedStatus } from "./status-guards.js";
 import { readFileSync } from "node:fs";
 
 const SLICE_DISPATCH_TYPES = new Set([
@@ -57,7 +58,7 @@ export function getPriorSliceCompletionBlocker(
       if (rows.length > 0) {
         slices = rows.map((r) => ({
           id: r.id,
-          done: r.status === "complete",
+          done: isClosedStatus(r.status),
           depends: r.depends ?? [],
         }));
       }
diff --git a/src/resources/extensions/gsd/tests/dispatch-guard-closed-status.test.ts b/src/resources/extensions/gsd/tests/dispatch-guard-closed-status.test.ts
new file mode 100644
index 000000000..6be6a5a5f
--- /dev/null
+++ b/src/resources/extensions/gsd/tests/dispatch-guard-closed-status.test.ts
@@ -0,0 +1,33 @@
+/**
+ * dispatch-guard-closed-status.test.ts — #3653
+ *
+ * Verify that the dispatch guard uses isClosedStatus() instead of a raw
+ * `status === "complete"` check when determining whether a slice is done.
+ * Reconciled slices may carry statuses like "skipped" or "cancelled" which
+ * are also closed — the raw check caused false dispatch blocks.
+ */
+
+import { describe, test } from "node:test";
+import assert from "node:assert/strict";
+import { readFileSync } from "node:fs";
+import { join, dirname } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const sourceFile = join(__dirname, "..", "dispatch-guard.ts");
+
+describe("dispatch-guard isClosedStatus migration (#3653)", () => {
+  const source = readFileSync(sourceFile, "utf-8");
+
+  test("imports isClosedStatus from status-guards", () => {
+    assert.match(source, /import\s*\{[^}]*isClosedStatus[^}]*\}\s*from\s*["']\.\/status-guards/);
+  });
+
+  test("uses isClosedStatus() for slice done check instead of raw comparison", () => {
+    assert.match(source, /done:\s*isClosedStatus\(r\.status\)/);
+  });
+
+  test("does not use raw status === 'complete' for DB slice rows", () => {
+    assert.doesNotMatch(source, /done:\s*r\.status\s*===\s*["']complete["']/);
+  });
+});