This server exposes HTTP endpoints but lacks MCP tool registration entirely. No tools are formally defined with schemas, descriptions, or parameters in MCP format. The four endpoints (GET /status, GET /tailscale/status, POST /adb/restart, GET /health) are raw HTTP routes with minimal documentation. Tool names are HTTP verbs + paths rather than action-verb conventions (e.g., 'get_status' vs 'GET /status'). Descriptions are present but generic (10-50 chars). No input schemas, parameter types, or output schemas are visible. Error handling is absent, failures return raw 500 errors with stack traces. This is not an MCP server; it's a REST API without MCP integration.

• Implement MCP tool registration using the MCP SDK. Define each endpoint as a tool with name, description, inputSchema, and outputSchema.
• Rename tools to follow verb_noun convention: 'get_server_status', 'get_tailscale_status', 'restart_adb_server', 'check_health'.
• Add JSON Schema for all tools. POST /adb/restart should declare no required inputs; GET endpoints should document any query parameters.
• Expand descriptions to 50-200 characters. Include WHAT the tool does, WHEN to use it, and what it returns. E.g., 'Retrieves current server status including Tailscale connection state, connected ADB devices, and Node.js process metrics. Use this to verify server health before executing device commands.'
• Add error handling with recovery guidance. Return structured errors: {error: 'ADB server failed to restart', retryable: true, suggestion: 'Check ADB logs or restart the Docker container'}.