Whyrail Debug
Replay the workflow. Find the broken step.
Debug AI failures across prompts, retrieval, tools, APIs, and user actions with replayable workflows and before/after comparisons.
Replay comparison
Original v14Wrong tool selected
Candidate v15Replay passed
InputRetrieveToolAnswer
Whyrail Debug
Replay the broken path.
Replay failing workflows, compare versions, inspect tool calls, and find the step where quality broke.
42 replays3 variantsFix passed
Whyrail Debug42/46 passed
01Replay the original workflow path
02Compare prompt, model, retrieval, and tool versions
03Validate the fix before the next release
Replay production failures
Move from confusing failures to focused fixes with workflow context.
Compare prompt and model versions
Move from confusing failures to focused fixes with workflow context.
Inspect retrieval and tool calls
Move from confusing failures to focused fixes with workflow context.
Validate fixes before release
Move from confusing failures to focused fixes with workflow context.