feat: add in-chat skill discovery and local registry install command

src/commands/builtin/index.test.ts

@@ -1,6 +1,6 @@
 import { describe, it, expect, vi } from 'vitest';
 
-import { createApproveCommand, createApprovalsCommand, createContextCommand, createDenyCommand, createElevateCommand, createModelCommand, createQueueCommand, createResearchCommand, createTransferCommand } from './index.js';
+import { createApproveCommand, createApprovalsCommand, createContextCommand, createDenyCommand, createElevateCommand, createModelCommand, createQueueCommand, createResearchCommand, createSkillCommand, createTransferCommand } from './index.js';
 
 describe('builtin /model command', () => {
   it('passes through the full argument string', async () => {
@@ -241,3 +241,19 @@ describe('builtin approval commands', () => {
     expect(result).toEqual({ handled: true, text: 'denied' });
   });
 });
+
+describe('builtin /skill command', () => {
+  it('passes subcommand text to skillCommand service', async () => {
+    const cmd = createSkillCommand();
+    const skillCommand = vi.fn(() => 'ok');
+    const result = await cmd.execute(['search', 'calendar'], {
+      channel: 'test',
+      senderId: 'user',
+      sessionId: 's1',
+      rawInput: '/skill search calendar',
+      services: { skillCommand },
+    });
+    expect(skillCommand).toHaveBeenCalledWith('search calendar');
+    expect(result).toEqual({ handled: true, text: 'ok' });
+  });
+});