Drift Investigation
Grouped workflow, findings, supporting signals, and related system changes.
writer
Scope: writer · downstream impact on critic
Severity: Critical
Confidence: High
What changed
- writer latency_s +32.1%
- writer cost_usd +42.3%
- critic success -30 pp
Why it matters
A change in writer propagated downstream to critic, whose outcome (success) worsened. The route is unchanged — the regression came from writer, likely the prompt change.
Signals
Within range
Drift
Normal range (p10–p90)
Version marker
Potentially related changes
Suggested next checks
- Compare writer output before vs after the prompt change.
- Open a representative critic run from the drift window (~run 3).
- Trace the writer → critic handoffs for payload / context shifts.
Event timeline