diff --git a/tests/translator/claude-claude-stream-decloak.test.js b/tests/translator/claude-claude-stream-decloak.test.js
index 35c0fcdf..d223129c 100644
--- a/tests/translator/claude-claude-stream-decloak.test.js
+++ b/tests/translator/claude-claude-stream-decloak.test.js
@@ -36,10 +36,10 @@ describe("Claude → Claude streaming passthrough (OAuth tool cloak)", () => {
     expect(outText).toBe(textChunk);
   });
 
-  it("is a no-op when no cloak map is present", () => {
+  it("falls back to suffix-stripping when no cloak map is present", () => {
     const chunk = toolUseStart(CLOAKED);
     const [out] = translateResponse(FORMATS.CLAUDE, FORMATS.CLAUDE, chunk, {});
-    expect(out).toBe(chunk);
+    expect(out.content_block.name).toBe("run_code");
   });
 
   it("tolerates the null flush chunk", () => {
diff --git a/tests/unit/claude-cloaking.test.js b/tests/unit/claude-cloaking.test.js
index 6f06e594..bc4cf541 100644
--- a/tests/unit/claude-cloaking.test.js
+++ b/tests/unit/claude-cloaking.test.js
@@ -117,7 +117,8 @@ describe("decloakStreamChunk", () => {
 
   it("tolerates null chunks and missing maps (stream flush path)", () => {
     expect(decloakStreamChunk(null, toolNameMap)).toBeNull();
-    expect(decloakStreamChunk(toolUseStart("run_code" + CLAUDE_TOOL_SUFFIX), null).content_block.name).toBe("run_code" + CLAUDE_TOOL_SUFFIX);
-    expect(decloakStreamChunk(toolUseStart("run_code" + CLAUDE_TOOL_SUFFIX), new Map()).content_block.name).toBe("run_code" + CLAUDE_TOOL_SUFFIX);
+    expect(decloakStreamChunk(toolUseStart("run_code" + CLAUDE_TOOL_SUFFIX), null).content_block.name).toBe("run_code");
+    expect(decloakStreamChunk(toolUseStart("run_code" + CLAUDE_TOOL_SUFFIX), new Map()).content_block.name).toBe("run_code");
+    expect(decloakStreamChunk(toolUseStart("uncloaked_tool"), null).content_block.name).toBe("uncloaked_tool");
   });
 });