diff --git a/src/agents/pi-embedded-subscribe.handlers.tools.media.test.ts b/src/agents/pi-embedded-subscribe.handlers.tools.media.test.ts
index a5e410619ab..1dd4341edfc 100644
--- a/src/agents/pi-embedded-subscribe.handlers.tools.media.test.ts
+++ b/src/agents/pi-embedded-subscribe.handlers.tools.media.test.ts
@@ -293,7 +293,7 @@ describe("handleToolExecutionEnd media emission", () => {
     // onToolResult should NOT be called by the new media path (emitToolOutput handles it).
     // It may be called by emitToolOutput, but the new block should not fire.
     // Verify emitToolOutput was called instead.
-    expect(ctx.emitToolOutput).toHaveBeenCalled();
+    expect(ctx.emitToolOutput).toHaveBeenCalledTimes(1);
     expect(ctx.state.pendingToolMediaUrls).toStrictEqual([]);
   });
 
@@ -379,7 +379,7 @@ describe("handleToolExecutionEnd media emission", () => {
       },
     });
 
-    expect(ctx.emitToolOutput).toHaveBeenCalled();
+    expect(ctx.emitToolOutput).toHaveBeenCalledTimes(1);
     expect(ctx.state.pendingToolMediaUrls).toStrictEqual([]);
     expect(ctx.state.pendingToolAudioAsVoice).toBe(false);
   });
@@ -452,14 +452,14 @@ describe("handleToolExecutionEnd media emission", () => {
   it("does not queue structured media already emitted in plain verbose output", async () => {
     const ctx = await handleVerboseGeneratedImage("plain");
 
-    expect(ctx.emitToolOutput).toHaveBeenCalled();
+    expect(ctx.emitToolOutput).toHaveBeenCalledTimes(1);
     expect(ctx.state.pendingToolMediaUrls).toStrictEqual([]);
   });
 
   it("queues structured media once for markdown verbose output", async () => {
     const ctx = await handleVerboseGeneratedImage("markdown");
 
-    expect(ctx.emitToolOutput).toHaveBeenCalled();
+    expect(ctx.emitToolOutput).toHaveBeenCalledTimes(1);
     expect(ctx.state.pendingToolMediaUrls).toEqual(["/tmp/generated.png"]);
   });