diff --git a/test/main/services/team/TeamMcpConfigBuilder.test.ts b/test/main/services/team/TeamMcpConfigBuilder.test.ts
index 8d25869c..9f837af1 100644
--- a/test/main/services/team/TeamMcpConfigBuilder.test.ts
+++ b/test/main/services/team/TeamMcpConfigBuilder.test.ts
@@ -88,6 +88,24 @@ describe('TeamMcpConfigBuilder', () => {
     expect(server?.command).toMatch(/(^node$|[\\/]node(?:\.exe)?$)/);
   }
 
+  function mockPathExists(existingPaths: string[]): void {
+    const originalAccess = fs.promises.access.bind(fs.promises);
+    vi.spyOn(fs.promises, 'access').mockImplementation(async (targetPath, mode) => {
+      const normalizedPath =
+        typeof targetPath === 'string' ? targetPath : Buffer.isBuffer(targetPath) ? targetPath.toString() : `${targetPath}`;
+      if (existingPaths.includes(normalizedPath)) {
+        return;
+      }
+      await originalAccess(targetPath, mode);
+    });
+  }
+
+  function mockBuiltWorkspaceEntryAvailable(): string {
+    const builtEntry = path.join(process.cwd(), 'mcp-server', 'dist', 'index.js');
+    mockPathExists([builtEntry]);
+    return builtEntry;
+  }
+
   beforeEach(() => {
     originalResourcesPath = (process as NodeJS.Process & { resourcesPath?: string }).resourcesPath;
     tempAppData = fs.mkdtempSync(path.join(os.tmpdir(), 'team-mcp-appdata-'));
@@ -160,6 +178,7 @@ describe('TeamMcpConfigBuilder', () => {
   });
 
   it('prefers the built workspace MCP entry when available', async () => {
+    const builtEntry = mockBuiltWorkspaceEntryAvailable();
     const builder = new TeamMcpConfigBuilder();
 
     const configPath = await builder.writeConfigFile();
@@ -171,7 +190,7 @@ describe('TeamMcpConfigBuilder', () => {
     };
 
     const server = parsed.mcpServers?.['agent-teams'];
-    expectNodeEntry(server, path.join(process.cwd(), 'mcp-server', 'dist', 'index.js'));
+    expectNodeEntry(server, builtEntry);
   });
 
   it('keeps generated team MCP config minimal and does not inline top-level user MCP', async () => {
@@ -254,6 +273,7 @@ describe('TeamMcpConfigBuilder', () => {
   });
 
   it('generated agent-teams server ignores same-named user MCP entry', async () => {
+    const builtEntry = mockBuiltWorkspaceEntryAvailable();
     const homeDir = fs.mkdtempSync(path.join(os.tmpdir(), 'team-mcp-home-'));
     createdDirs.push(homeDir);
     mockHomeDir = homeDir;
@@ -279,7 +299,7 @@ describe('TeamMcpConfigBuilder', () => {
       mcpServers: Record<string, { command?: string; args?: string[] }>;
     };
 
-    expectNodeEntry(parsed.mcpServers['agent-teams'], path.join(process.cwd(), 'mcp-server', 'dist', 'index.js'));
+    expectNodeEntry(parsed.mcpServers['agent-teams'], builtEntry);
   });
 
   it('ignores malformed user MCP file', async () => {
@@ -485,6 +505,7 @@ describe('TeamMcpConfigBuilder', () => {
   });
 
   it('packaged mode falls back to the built workspace MCP entry when resourcesPath bundle is missing', async () => {
+    const builtEntry = mockBuiltWorkspaceEntryAvailable();
     setPackagedMode(true, '6.0.0');
     const resourcesDir = fs.mkdtempSync(path.join(os.tmpdir(), 'team-mcp-resources-'));
     createdDirs.push(resourcesDir);
@@ -494,6 +515,6 @@ describe('TeamMcpConfigBuilder', () => {
     const configPath = await builder.writeConfigFile();
     createdPaths.push(configPath);
 
-    expectNodeEntry(readGeneratedServer(configPath), path.join(process.cwd(), 'mcp-server', 'dist', 'index.js'));
+    expectNodeEntry(readGeneratedServer(configPath), builtEntry);
   });
 });