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cantian-ai

v0.0.55

Published

`CompletionLlm` 和 `ResponseLlm` 对外事件类型一致,`stream()` 返回 `ModelChunk`:

Readme

ai

Usage

流式事件类型(CompletionLlm vs ResponseLlm)

CompletionLlmResponseLlm 对外事件类型一致,stream() 返回 ModelChunk

  • MODEL_CALLING: 已发起模型请求(url, init
  • TOKEN: 文本增量(delta
  • MESSAGE: 完整消息(role, content
  • TOOL_CALL: 模型发起工具调用(callId, name, arguments
  • USAGE: 本轮调用统计(tokens、耗时、estimatedCost、input/output)

如果是 agenticStream()(Agent 模式),除了上面这些,还会有:

  • TOOL_CALLING: 开始执行某个工具
  • AGENTIC_TOOL_TOKEN: 工具执行过程中的增量输出
  • TOOL_CALL_OUTPUT: 工具执行结果
  • AGENT_USAGE: 整个 agent 多轮调用汇总统计(包含 tokenUsageId

提前获取 tokenUsageId

agenticStream() 支持通过 options.tokenUsageId 由外层传入 tokenUsageId,方便外层先保存消息并建立关联:

const tokenUsageId = crypto.randomUUID();

for await (const chunk of llm.agenticStream(messages, modelOptions, {
  logMeta: { traceId: 'abc' },
  tokenUsageId,
})) {
  // 此时可用 tokenUsageId 关联消息
  // 最终 AGENT_USAGE chunk 也会带上同一个 tokenUsageId
}