Traces and replay

A trace records every step of a run: prompts, tool calls, tokens, cost, latency and policy checks.

Reading a trace

Steps are drawn on a timeline. Guardrail steps are marked so you can see exactly where a run paused and who approved it.

Replay

Pick any run and replay it in a sandbox with a different model, prompt or tool version. Eventide diffs the outputs and flags steps that changed.

npx eventide replay run_8f2c --model new-model --sandbox

npx eventide replay run_8f2c --model new-model --sandbox

npx eventide replay run_8f2c --model new-model --sandbox

Replays never touch production systems. Tool calls are served from the recorded responses unless you allow live calls.