Claude Desktop Commander MCP

Instructions

Implementation Reference

• src/server.ts:243-249 (handler)

  Handler for the unblock_command tool that parses input arguments and delegates to commandManager.unblockCommand, returning the result.

  case "unblock_command": {
    const parsed = UnblockCommandArgsSchema.parse(args);
    const unblockResult = await commandManager.unblockCommand(parsed.command);
    return {
      content: [{ type: "text", text: unblockResult }],
    };
  }

• src/tools/schemas.ts:27-29 (schema)

  Zod schema defining the input for unblock_command: a command string.

  export const UnblockCommandArgsSchema = z.object({
    command: z.string(),
  });

• src/server.ts:108-113 (registration)

  Registration of the unblock_command tool in the server's tool list, including name, description, and input schema.

  {
    name: "unblock_command",
    description:
      "Remove a command from the blacklist. Once unblocked, the command can be executed normally.",
    inputSchema: zodToJsonSchema(UnblockCommandArgsSchema),
  },

• src/command-manager.ts:43-51 (helper)

  Implementation of unblockCommand method in CommandManager class, which removes the command from the blocked set and persists the change to config file.

  async unblockCommand(command: string): Promise<boolean> {
    command = command.toLowerCase().trim();
    if (!this.blockedCommands.has(command)) {
      return false;
    }
    this.blockedCommands.delete(command);
    await this.saveBlockedCommands();
    return true;
  }