@hashgraphonline/hedera-agent-kit/src/langchain/tools/hts/pause-token-tool.ts

Build LLM-powered applications that interact with the Hedera Network. Create conversational agents that can understand user requests in natural language and execute Hedera transactions, or build backend systems that leverage AI for on-chain operations.

import { z } from 'zod';
import { PauseTokenParams } from '../../../types';
import {
  BaseHederaTransactionTool,
  BaseHederaTransactionToolParams,
} from '../common/base-hedera-transaction-tool';
import { BaseServiceBuilder } from '../../../builders/base-service-builder';
import { HtsBuilder } from '../../../builders/hts/hts-builder';

const PauseTokenZodSchemaCore = z.object({
  tokenId: z
    .string()
    .describe('The ID of the token to pause (e.g., "0.0.xxxx").'),
});

export class HederaPauseTokenTool extends BaseHederaTransactionTool<
  typeof PauseTokenZodSchemaCore
> {
  name = 'hedera-hts-pause-token';
  description =
    'Pauses a token. Requires the tokenId. Use metaOptions for execution control.';
  specificInputSchema = PauseTokenZodSchemaCore;
  namespace = 'hts';

  constructor(params: BaseHederaTransactionToolParams) {
    super(params);
  }

  protected getServiceBuilder(): BaseServiceBuilder {
    return this.hederaKit.hts();
  }

  protected async callBuilderMethod(
    builder: BaseServiceBuilder,
    specificArgs: z.infer<typeof PauseTokenZodSchemaCore>
  ): Promise<void> {
    await (builder as HtsBuilder).pauseToken(
      specificArgs as unknown as PauseTokenParams
    );
  }
}