diff --git a/sdk/src/query-tools-error-mapper.test.ts b/sdk/src/query-tools-error-mapper.test.ts
deleted file mode 100644
index a04be72ad..000000000
--- a/sdk/src/query-tools-error-mapper.test.ts
+++ /dev/null
@@ -1,21 +0,0 @@
-import { describe, expect, it } from 'vitest';
-import { ErrorClassification, GSDError } from './errors.js';
-import { toToolsErrorFromUnknown } from './query-tools-error-factory.js';
-
-describe('query tools error mapper', () => {
-  it('maps GSDError to GSDToolsError exit code', () => {
-    const err = toToolsErrorFromUnknown('state', ['load'], new GSDError('bad input', ErrorClassification.Validation));
-    expect(err.exitCode).toBe(10);
-    expect(err.message).toBe('bad input');
-  });
-
-  it('attaches timeout classification when message indicates timeout', () => {
-    const err = toToolsErrorFromUnknown('state', ['load'], new Error('gsd-tools timed out after 1234ms: state load'));
-    expect(err.classification).toEqual({ kind: 'timeout', timeoutMs: 1234 });
-  });
-
-  it('attaches failure classification for non-timeout failures', () => {
-    const err = toToolsErrorFromUnknown('state', ['load'], new Error('boom'));
-    expect(err.classification).toEqual({ kind: 'failure' });
-  });
-});