Cloudflare 推出 Agent Tracing，带截断限制和不均匀的负载默认值
原标题：Cloudflare Adds Agent Tracing, with Truncation Limits and Uneven Payload Defaults
AI 摘要
Cloudflare 推出了 agent tracing，这是 Cloudflare Agents 的首个组件，用于在统一仪表板中收集部署的 agent 会话。该功能在现有 Workers tracing 基础上增加了 agent 级 span，并附带定价日期：测试期间免费，自 2026 年 10 月 1 日起纳入 Workers Observability 定价。该功能支持 Think、Flue 等 harness，并遵循 OpenTelemetry 语义，但存在截断限制和负载记录默认不一致的问题。
正文节选
Cloudflare has launched agent tracing, the first component of Cloudflare Agents, a dashboard surface that gathers deployed agent sessions in one place. The release adds agent-level spans to the Workers tracing already in place, and it arrives with a pricing date attached: tracing is free during beta, and from October 1, 2026 it falls under Workers Observability pricing. The problem statement is the useful part. An agent can return HTTP 200 and still fail. It may pick the wrong tool, hand stale c