MCP-Delete

Instructions

Implementation Reference

• src/index.ts:61-110 (handler)

  Handler for the delete_file tool. Resolves the input path to possible locations, checks if the file exists, deletes it using fs.promises.unlink, and returns success or throws appropriate MCP errors.

  case "delete_file": {
    const inputPath = String(request.params.arguments?.path);
    if (!inputPath) {
      throw new McpError(
        ErrorCode.InvalidParams,
        "File path is required"
      );
    }
    
    // Try multiple potential paths
    const pathsToTry = [
      inputPath, // Original path
      isAbsolute(inputPath) ? inputPath : resolve(process.cwd(), inputPath), // Relative to process.cwd()
      isAbsolute(inputPath) ? inputPath : resolve('c:/mcpnfo', inputPath), // Relative to mcpnfo
    ];
  
    // Try each path
    let fileFound = false;
    let foundPath = '';
    for (const path of pathsToTry) {
      if (existsSync(path)) {
        fileFound = true;
        foundPath = path;
        break;
      }
    }
  
    if (!fileFound) {
      throw new McpError(
        ErrorCode.InvalidParams,
        `File not found: ${inputPath}\nTried paths:\n${pathsToTry.join('\n')}`
      );
    }
  
    try {
      await unlink(foundPath);
      return {
        content: [{
          type: "text",
          text: `Successfully deleted file: ${inputPath}`
        }]
      };
    } catch (err) {
      const error = err as Error;
      throw new McpError(
        ErrorCode.InternalError,
        `Failed to delete file ${inputPath}: ${error.message}\nTried paths:\n${pathsToTry.join('\n')}`
      );
    }
  }

• src/index.ts:37-50 (registration)

  Registers the "delete_file" tool in the ListTools response, including its name, description, and input schema.

  {
    name: "delete_file",
    description: "Delete a file at the specified path (supports both relative and absolute paths)",
    inputSchema: {
      type: "object",
      properties: {
        path: {
          type: "string",
          description: "Path to the file to delete (relative to working directory or absolute)"
        }
      },
      required: ["path"]
    }
  }

• src/index.ts:40-49 (schema)

  Input schema definition for the delete_file tool, specifying a required 'path' string property.

  inputSchema: {
    type: "object",
    properties: {
      path: {
        type: "string",
        description: "Path to the file to delete (relative to working directory or absolute)"
      }
    },
    required: ["path"]
  }