android-mcp-toolkit

Instructions

Implementation Reference

• src/tools/logcatTool.js:119-124 (handler)

  The handler function for the 'get-current-activity' tool. Executes 'adb shell dumpsys window', filters relevant lines about current focus, and returns trimmed output.

  async (params) => {
    const dump = await runAdbCommand(['shell', 'dumpsys', 'window'], params.timeoutMs);
    const lines = dump.split('\n').filter(line => line.includes('mCurrentFocus') || line.includes('mFocusedApp'));
    const trimmed = lines.slice(0, 8).join('\n').trim();
    return { content: [{ type: 'text', text: trimmed || 'No focus info found.' }] };
  }

• src/tools/logcatTool.js:112-125 (registration)

  Registration of the 'get-current-activity' tool using server.registerTool, including metadata and handler.

  server.registerTool(
    'get-current-activity',
    {
      title: 'Get current activity/window focus',
      description: 'Inspect current focused app/window via dumpsys window.',
      inputSchema: currentActivityInputSchema
    },
    async (params) => {
      const dump = await runAdbCommand(['shell', 'dumpsys', 'window'], params.timeoutMs);
      const lines = dump.split('\n').filter(line => line.includes('mCurrentFocus') || line.includes('mFocusedApp'));
      const trimmed = lines.slice(0, 8).join('\n').trim();
      return { content: [{ type: 'text', text: trimmed || 'No focus info found.' }] };
    }
  );

• src/tools/logcatTool.js:22-24 (schema)

  Zod input schema for the 'get-current-activity' tool, defining the timeoutMs parameter.

  const currentActivityInputSchema = z.object({
    timeoutMs: z.number().int().min(1000).max(15000).default(5000).describe('Timeout per adb call in milliseconds')
  });