MCP NodeJS Debugger

Instructions

Implementation Reference

• src/mcp-server.js:741-774 (handler)

  Handler function for the 'continue' MCP tool. Checks if debugger is paused, then sends 'Debugger.resume' command to resume execution and returns status message.

    async () => {
      try {
        // Ensure debugger is enabled
        if (!inspector.debuggerEnabled) {
          await inspector.enableDebugger();
        }
        
        if (!inspector.paused) {
          return {
            content: [{
              type: "text",
              text: "Debugger is not paused at a breakpoint"
            }]
          };
        }
        
        await inspector.send('Debugger.resume', {});
        
        return {
          content: [{
            type: "text",
            text: "Execution resumed"
          }]
        };
      } catch (err) {
        return {
          content: [{
            type: "text",
            text: `Error continuing execution: ${err.message}`
          }]
        };
      }
    }
  );

• src/mcp-server.js:737-775 (registration)

  Registration of the 'continue' tool using server.tool() with name, description, empty schema, and inline handler function.

  server.tool(
    "continue",
    "Continues code execution",
    {},
    async () => {
      try {
        // Ensure debugger is enabled
        if (!inspector.debuggerEnabled) {
          await inspector.enableDebugger();
        }
        
        if (!inspector.paused) {
          return {
            content: [{
              type: "text",
              text: "Debugger is not paused at a breakpoint"
            }]
          };
        }
        
        await inspector.send('Debugger.resume', {});
        
        return {
          content: [{
            type: "text",
            text: "Execution resumed"
          }]
        };
      } catch (err) {
        return {
          content: [{
            type: "text",
            text: `Error continuing execution: ${err.message}`
          }]
        };
      }
    }
  );