trello_delete_card_attachment

Instructions

Implementation Reference

• src/tools/advanced.ts:1295-1335 (handler)

  The main handler function that executes the delete card attachment logic. Extracts credentials, validates params, calls TrelloClient.deleteCardAttachment(), and returns the result.

  export async function handleTrelloDeleteCardAttachment(args: unknown) {
    try {
      const { credentials, params } = extractCredentials(args);
      const { cardId, attachmentId} = validateDeleteCardAttachment(params);
      const client = new TrelloClient(credentials);
  
      const response = await client.deleteCardAttachment(cardId, attachmentId);
  
      const result = {
        summary: `Deleted attachment ${attachmentId} from card ${cardId}`,
        cardId,
        attachmentId,
        rateLimit: response.rateLimit
      };
  
      return {
        content: [
          {
            type: 'text' as const,
            text: JSON.stringify(result, null, 2)
          }
        ]
      };
    } catch (error) {
      const errorMessage = error instanceof z.ZodError
        ? formatValidationError(error)
        : error instanceof Error
          ? error.message
          : 'Unknown error occurred';
  
      return {
        content: [
          {
            type: 'text' as const,
            text: `Error deleting attachment: ${errorMessage}`
          }
        ],
        isError: true
      };
    }
  }

• src/tools/advanced.ts:85-93 (schema)

  Validation schema for the delete card attachment input using Zod. Validates cardId (Trello ID) and attachmentId (string).

  const validateDeleteCardAttachment = (args: unknown) => {
    const schema = z.object({
  
      cardId: trelloIdSchema,
      attachmentId: z.string().min(1, 'Attachment ID is required')
    });
  
    return schema.parse(args);
  };

• src/tools/advanced.ts:1268-1293 (registration)

  Tool definition/registration object with name 'trello_delete_card_attachment', description, and inputSchema.

  export const trelloDeleteCardAttachmentTool: Tool = {
    name: 'trello_delete_card_attachment',
    description: 'Delete an attachment from a Trello card.',
    inputSchema: {
      type: 'object',
      properties: {
        apiKey: {
          type: 'string',
          description: 'Trello API key (optional if TRELLO_API_KEY env var is set)'
        },
        token: {
          type: 'string',
          description: 'Trello API token (optional if TRELLO_TOKEN env var is set)'
        },
        cardId: {
          type: 'string',
          description: 'ID or URL of the card (e.g. "abc123" or "https://trello.com/c/abc123/1-title")'
        },
        attachmentId: {
          type: 'string',
          description: 'ID of the attachment to delete'
        }
      },
      required: ['cardId', 'attachmentId']
    }
  };

• src/trello/client.ts:667-673 (helper)

  TrelloClient method that makes the actual DELETE API request to /cards/{cardId}/attachments/{attachmentId}.

  async deleteCardAttachment(cardId: string, attachmentId: string): Promise<TrelloApiResponse<void>> {
    return this.makeRequest<void>(
      `/cards/${cardId}/attachments/${attachmentId}`,
      { method: 'DELETE' },
      `Delete attachment ${attachmentId} from card ${cardId}`
    );
  }

• src/server.ts:110-120 (registration)

  Server registration: 'trello_delete_card_attachment' is listed in the WRITE_TOOL_NAMES set as a write tool.

  const WRITE_TOOL_NAMES = new Set([
    'create_card', 'update_card', 'move_card', 'trello_archive_card',
    'trello_add_comment', 'trello_create_list',
    'trello_create_label', 'trello_update_label', 'trello_delete_label',
    'trello_add_label_to_card', 'trello_remove_label_from_card',
    'trello_add_member_to_card', 'trello_remove_member_from_card',
    'trello_create_checklist', 'trello_update_checklist', 'trello_delete_checklist',
    'trello_update_checklist_field',
    'trello_create_check_item', 'trello_delete_check_item', 'trello_update_check_item',
    'trello_create_card_attachment', 'trello_delete_card_attachment'
  ]);