Summary
Cloudflare added agent tracing to its Agents SDK, letting developers inspect production agent behavior turn by turn. Traces surface each agent turn alongside model calls, tool runs, approvals, token usage, and Workers runtime operations, with a dashboard for session inspection, conversation replay, and a trace waterfall.
What changed
The Agents SDK now emits agent traces. Think and Flue apps emit traces automatically once enabled via Wrangler config, while AI SDK usage is instrumented by wrapping the namespace with wrapAISDK(). Traces are viewable in a dashboard with session inspection, conversation replay, and waterfall visualization.
Why it matters
Observability has been the weakest link in shipping agents to production. Native, framework-level tracing that ties model calls, tool runs, and approvals to individual agent turns lets teams debug non-deterministic behavior and control token spend without bolting on a third-party tracing stack.
Evidence excerpt
Traces show each agent turn alongside model calls, tool runs, approvals, token usage, and Workers runtime operations.