fix: isolate concurrent OpenCode chat runs

tests/unit/project-config.test.ts

@@ -194,6 +194,49 @@ describe('project-owned contact configuration', () => {
     expect(markdown).toContain('"*": deny');
   });
 
+  it('removes only previously generated Agent files when configured Agents are deleted', async () => {
+    const projectPath = await mkdtemp(path.join(tmpdir(), 'makelore-project-config-managed-agents-'));
+    const initial = await createInitialProjectConfig(projectPath);
+    const retainedAgent = createContact();
+    const removedAgent = createContact({ id: 'agent-removed', name: '小红' });
+    const userModifiedAgent = createContact({ id: 'agent-user-modified', name: '小蓝' });
+    await writeProjectConfig(projectPath, {
+      ...initial,
+      initialized: true,
+      agents: [retainedAgent, removedAgent, userModifiedAgent],
+    });
+    await writeFile(
+      path.join(projectPath, '.opencode', 'agent', 'agent-user-modified.md'),
+      '# User replaced the generated file\n',
+      'utf8',
+    );
+    await writeFile(
+      path.join(projectPath, '.opencode', 'agent', 'custom-user-agent.md'),
+      '# User-owned Agent\n',
+      'utf8',
+    );
+
+    await writeProjectConfig(projectPath, {
+      ...initial,
+      initialized: true,
+      agents: [retainedAgent],
+    });
+
+    expect((await readdir(path.join(projectPath, '.opencode', 'agent'))).sort()).toEqual([
+      'agent-test.md',
+      'agent-user-modified.md',
+      'custom-user-agent.md',
+    ]);
+    expect(await readFile(
+      path.join(projectPath, '.opencode', 'agent', 'agent-user-modified.md'),
+      'utf8',
+    )).toBe('# User replaced the generated file\n');
+    expect(await readFile(
+      path.join(projectPath, '.opencode', 'agent', 'custom-user-agent.md'),
+      'utf8',
+    )).toBe('# User-owned Agent\n');
+  });
+
   it('grants selected presentation and planning Skills to the materialized OpenCode Agent', async () => {
     const projectPath = await mkdtemp(path.join(tmpdir(), 'makelore-project-config-planning-skills-'));
     const initial = await createInitialProjectConfig(projectPath);