2 files changed, 16 insertions, 0 deletions
diff --git a/src/core/metrics/cache-timer.test.ts b/src/core/metrics/cache-timer.test.ts
index e55eff4..d450135 100644
--- a/src/core/metrics/cache-timer.test.ts
+++ b/src/core/metrics/cache-timer.test.ts
@@ -32,6 +32,11 @@ const ev = {
     turnId,
     delta: "x",
   }),
+  reasoningEnd: (turnId: string): AgentEvent => ({
+    type: "reasoning-end",
+    conversationId: C,
+    turnId,
+  }),
   call: (turnId: string, stepId: string, toolCallId: string): AgentEvent => ({
     type: "tool-call",
     conversationId: C,
@@ -151,6 +156,16 @@ describe("foldCacheTimerEvent — step gaps", () => {
     expect(s.stepStamps.get("t1#0")).toBe(8_000);
   });
 
+  it("treats a reasoning-end boundary as resumed output too", () => {
+    const s = run([
+      [0, ev.call("t1", "t1#0", "a")],
+      [1_000, ev.stepComplete("t1", "t1#0")],
+      [9_000, ev.reasoningEnd("t1")],
+    ]);
+    expect(s.running).toBeNull();
+    expect(s.stepStamps.get("t1#0")).toBe(8_000);
+  });
+
   it("stops on a tool-call or usage from a DIFFERENT step, not its own", () => {
     const base = run([
       [0, ev.call("t1", "t1#0", "a")],
diff --git a/src/core/metrics/cache-timer.ts b/src/core/metrics/cache-timer.ts
index 66d5fac..3d7270d 100644
--- a/src/core/metrics/cache-timer.ts
+++ b/src/core/metrics/cache-timer.ts
@@ -208,6 +208,7 @@ export function foldCacheTimerEvent(
 
     case "text-delta":
     case "reasoning-delta":
+    case "reasoning-end":
     case "provider-retry":
       // Output (or a retry) from the next request: the gap is over.
       return r?.kind === "step" ? stopStep(state, now) : state;