How do I find the failure modes my logs don't show?
The failures that matter most are behavioral, not exceptions, the agent returns a 200 and a confident answer that's wrong, looping, or off-policy. Flowlines detects these as signals across sessions and surfaces recurring patterns you never wrote a rule for through a discoveries queue.
Your logs are good at crashes. They're blind to the failures that don't throw: a fabricated answer, a tool chain that silently returned nothing, a confident “done” with no work behind it, an answer that drifts off the allowed scope. Every one of those is a successful HTTP call.
Flowlines scores each session against the signal registry, so these show up as hallucination, cascade_failure, low_quality_response, policy_violation, and more, ranked by how many sessions and users they touch.
The ones you didn't anticipate surface too. Recurring patterns that don't match an existing signal land in the discoveries queue; promote the useful ones into your own signals and they're tracked from then on.
Last updated 2026-05-28