It says it succeeded.
Can you prove what it did?
Your auditor asks:
"Show me the exact state before and after data sanitization."
"Prove PII was removed before it left step 3."
"Can you replay step 4 to verify the output?"
You have nothing to show.
flyto-core — execution engine with built-in audit trail.
Every step captures full state. Not logs. Evidence.
Same task. Full audit trail.
Evidence: ON Trace: ON
Every step: input, output, timing, context before, context after.
Stored to disk. Queryable. Replayable.
Structured trace — not a log file.
Evidence snapshots — the full state at every step boundary.
Your auditor can now verify:
✓ What entered each step
✓ What left each step
✓ Exactly when, and how long
Typical agent: re-run everything from scratch.
flyto-core: evidence captured even on failure.
You know exactly:
✗ What state caused the failure
✓ What succeeded before it
✓ The exact error output
Fix the issue. Replay from step 4.
The engine loads the context snapshot at that step.
Re-executes only steps 4-7.
No re-fetch. No re-sanitization. Deterministic.
Auditability is not optional.