Flipt MCP Server

Implementation Reference

• src/index.ts:972-996 (handler)

  The MCP tool handler function for 'delete_rule'. It executes the deletion via fliptClient and formats the MCP response.

  async args => {
    try {
      await fliptClient.deleteRule(args.namespaceKey, args.flagKey, args.ruleId);
  
      return {
        content: [
          {
            type: 'text',
            text: `Successfully deleted rule ${args.ruleId} from flag ${args.flagKey}`,
          },
        ],
      };
    } catch (error: any) {
      console.error('Error deleting rule:', error);
      return {
        content: [
          {
            type: 'text',
            text: `Failed to delete rule: ${error.message}`,
          },
        ],
        isError: true,
      };
    }
  }

• src/index.ts:967-971 (schema)

  Input schema using Zod for validating namespaceKey, flagKey, and ruleId parameters.

  {
    namespaceKey: z.string().min(1),
    flagKey: z.string().min(1),
    ruleId: z.string().min(1),
  },

• src/index.ts:965-997 (registration)

  Registers the 'delete_rule' tool with the MCP server, specifying name, input schema, and handler.

  server.tool(
    'delete_rule',
    {
      namespaceKey: z.string().min(1),
      flagKey: z.string().min(1),
      ruleId: z.string().min(1),
    },
    async args => {
      try {
        await fliptClient.deleteRule(args.namespaceKey, args.flagKey, args.ruleId);
  
        return {
          content: [
            {
              type: 'text',
              text: `Successfully deleted rule ${args.ruleId} from flag ${args.flagKey}`,
            },
          ],
        };
      } catch (error: any) {
        console.error('Error deleting rule:', error);
        return {
          content: [
            {
              type: 'text',
              text: `Failed to delete rule: ${error.message}`,
            },
          ],
          isError: true,
        };
      }
    }
  );

• src/services/fliptClient.ts:345-353 (helper)

  Helper method in FliptClient that calls the generated RulesServiceApi to delete the rule.

  async deleteRule(namespaceKey: string, flagKey: string, id: string) {
    try {
      await this.rulesApi.deleteRule(namespaceKey, flagKey, id);
      return { success: true };
    } catch (error) {
      console.error('Error deleting rule:', error);
      throw error;
    }
  }