[Bug Report]: 400 Invalid decoding guidance syntax: Root objects must not be anyOf

[kangqingyu]

Version

agent-tars/0.3.0-beta.11 darwin-arm64 node-v23.11.0

Issue Type

• Select a issue type 👇
• Agent TARS Web UI (@agent-tars/web-ui)
• Agent TARS CLI (@agent-tars/server)
• Agent TARS Server (@agent-tars/server)
• Agent TARS (@agent-tars/core)
• MCP Agent (@tarko/mcp-agent)
• Agent Kernel (@tarko/agent)
• Other (please specify in description)

Model Provider

• Select a model provider 👇
• Volcengine
• Anthropic
• OpenAI
• Azure OpenAI
• Other (please specify in description)

Problem Description

终端使用 agent-tars
--provider volcengine
--model doubao-seed-1-6-vision-250815
--apiKey 591f24----xxx---044

发出关键词之后，报错
[Stream] Error in agent loop execution: Error: 400 Invalid decoding guidance syntax: Root objects must not be anyOf Request id: 021757993691105d79ca5b2b80bbef4238a882cb7bef15bcaeda9

Error Logs

Request id: 021757993691105d79ca5b2b80bbef4238a882cb7bef15bcaeda9

[ulivz]

@kangqingyu Thanks for your report, current workaround:

 agent-tars
--provider volcengine
--model doubao-seed-1-6-vision-250815
--apiKey 591f24----xxx---044
 --toolCallEngine prompt_engineering

[kangqingyu]

Thanks, it'is ok now

import { AgentAppConfig } from '@tarko/interface';

/**

• Tarko Agent Configuration
• @see {@link https://docs.tarko.dev/config}
  */
  const config: AgentAppConfig = {
  model: {
  provider: 'volcengine',
  id: 'doubao-seed-1-6-vision-250815',
  apiKey: '59--a044',
  },
  toolCallEngine: 'prompt_engineering',
  };

export default config;