Last Rock MCP

Instructions

Implementation Reference

• src/index.ts:264-275 (handler)

  Handler for the trigger_auto_recovery tool. Extracts service_name and failure_type arguments and invokes executeOrchestrator with operation 'recovery/auto-recovery'.

  case "trigger_auto_recovery": {
    const { service_name, failure_type } = args as {
      service_name: string;
      failure_type: string;
    };
    
    result = executeOrchestrator("recovery/auto-recovery", {
      service_name,
      failure_type
    });
    break;
  }

• src/index.ts:134-147 (schema)

  Input schema for trigger_auto_recovery tool, defining required string properties service_name and failure_type.

  inputSchema: {
    type: "object",
    properties: {
      service_name: {
        type: "string",
        description: "Service that failed"
      },
      failure_type: {
        type: "string",
        description: "Type of failure: 'crash', 'health_check_failed', 'deployment_failed'"
      }
    },
    required: ["service_name", "failure_type"]
  }

• src/index.ts:131-148 (registration)

  Registration of the trigger_auto_recovery tool in the tools array, including name, description, and input schema.

  {
    name: "trigger_auto_recovery",
    description: "Trigger automatic recovery for a failed service using predefined playbooks.",
    inputSchema: {
      type: "object",
      properties: {
        service_name: {
          type: "string",
          description: "Service that failed"
        },
        failure_type: {
          type: "string",
          description: "Type of failure: 'crash', 'health_check_failed', 'deployment_failed'"
        }
      },
      required: ["service_name", "failure_type"]
    }
  },

• src/index.ts:16-43 (helper)

  Shared helper function executeOrchestrator used by all tools, including trigger_auto_recovery, to run orchestrator.py with given operation and parameters.

  function executeOrchestrator(operation: string, params: Record<string, string> = {}): any {
    const paramStr = Object.entries(params)
      .map(([key, value]) => `${key}="${value}"`)
      .join(" ");
    
    const cmd = `cd ${ORCHESTRATOR_PATH} && python orchestrator.py ${operation} ${paramStr}`;
    
    try {
      const output = execSync(cmd, {
        encoding: "utf-8",
        maxBuffer: 10 * 1024 * 1024
      });
      
      // Try to parse as JSON, fallback to plain text
      try {
        return JSON.parse(output);
      } catch {
        return { output: output.trim() };
      }
    } catch (error: any) {
      return {
        success: false,
        error: error.message,
        stderr: error.stderr?.toString() || "",
        stdout: error.stdout?.toString() || ""
      };
    }
  }