diff --git a/packages/core/src/__tests__/builtin-workflows.test.ts b/packages/core/src/__tests__/builtin-workflows.test.ts
index 51c0b2f847..301508c5f1 100644
--- a/packages/core/src/__tests__/builtin-workflows.test.ts
+++ b/packages/core/src/__tests__/builtin-workflows.test.ts
@@ -288,6 +288,22 @@ describe("built-in workflows", () => {
     expect(execute!.toolMode).toBe("coding");
   });
 
+  it("compound-engineering merge stage uses the CE commit/PR + resolve-feedback skills", () => {
+    const ce = getBuiltinWorkflow("builtin:compound-engineering")!;
+    const byId = (id: string) => ce.ir.nodes.find((n) => n.id === id);
+    expect(byId("commit-pr")?.config?.skillName).toBe("compound-engineering:ce-commit-push-pr");
+    expect(byId("commit-pr")?.config?.toolMode).toBe("coding");
+    expect(byId("resolve-feedback")?.config?.skillName).toBe("compound-engineering:ce-resolve-pr-feedback");
+    // KTD-6: the Fusion board-merge seam is preserved (CE prepares the PR, Fusion
+    // owns the merge transition).
+    expect(byId("merge")?.config?.seam).toBe("merge");
+    // Ordering: commit-pr → resolve-feedback → merge → document.
+    const ids = ce.ir.nodes.map((n) => n.id);
+    expect(ids.indexOf("commit-pr")).toBeLessThan(ids.indexOf("resolve-feedback"));
+    expect(ids.indexOf("resolve-feedback")).toBeLessThan(ids.indexOf("merge"));
+    expect(ids.indexOf("merge")).toBeLessThan(ids.indexOf("document"));
+  });
+
   describe("store integration", () => {
     const harness = createTaskStoreTestHarness();
     let store: ReturnType<typeof harness.store>;
diff --git a/packages/core/src/builtin-workflows.ts b/packages/core/src/builtin-workflows.ts
index 601b217cca..e777a6c556 100644
--- a/packages/core/src/builtin-workflows.ts
+++ b/packages/core/src/builtin-workflows.ts
@@ -191,6 +191,35 @@ export const BUILTIN_WORKFLOWS: WorkflowDefinition[] = [
           prompt: "Run a structured code review of the changes. Block merge on P0/P1 findings.",
         },
       },
+      {
+        id: "commit-pr",
+        kind: "prompt",
+        config: {
+          name: "Commit & open PR",
+          executor: "skill",
+          skillName: "compound-engineering:ce-commit-push-pr",
+          // Coding mode: this step runs git + gh. Per KTD-6 it OWNS commit /
+          // push / PR creation; it does NOT perform the board-state merge — that
+          // stays with Fusion's merge seam below (workflow-owned merge), so the
+          // two never race the same branch state.
+          toolMode: "coding",
+          prompt: "Commit the work in logical commits, push the branch, and open a pull request with a value-first description.",
+        },
+      },
+      {
+        id: "resolve-feedback",
+        kind: "prompt",
+        config: {
+          name: "Resolve PR feedback",
+          executor: "skill",
+          skillName: "compound-engineering:ce-resolve-pr-feedback",
+          toolMode: "coding",
+          // Resolves open PR review threads. On the first autonomous pass there
+          // may be no feedback yet (review is async); the skill no-ops when there
+          // are no threads, and a re-run picks up later feedback.
+          prompt: "Resolve open PR review feedback: evaluate each thread, fix valid issues, and reply.",
+        },
+      },
       { id: "merge", kind: "prompt", config: builtinPromptConfig("merge", "Merge boundary") },
       {
         id: "document",