What this service solves
A stopped workflow can leave some items incomplete and others already processed. A useful repair has to address the failure and account for the work already done. We reproduce one fault in a supported test environment, narrow it to the affected step, and use regression examples to verify the correction and the recovery procedure.
What you get
Repaired workflow
A targeted correction for the agreed failure mode, with test examples that cover the original problem and normal processing.
Recovery note
A record of the repair, the expected result, and the checks the operator should make before replaying an affected item.
What’s included
Reproduce and isolate one fault
Compare a failed run with an expected one to identify the input, condition, or step that produces the fault.
Apply a targeted fix in a test environment
Apply the smallest suitable correction in the test workspace. Check that an ordinary input still follows the expected path.
Confirm controlled recovery and record the repair
Verify recovery against the agreed examples, including duplicate or partial output where it affects the failure.
How implementation works
Reproduce
Recreate the symptom with a representative incident example and confirm that the test environment can reproduce it.
Repair and test
Test the correction using the original failure and a normal run. Compare any downstream records created by both paths.
Verify and document recovery
Document how to recognize the same problem again, what to verify after the fix, and when the operator should escalate.
Technical considerations
- Verify side effects before retrying
- Where the affected step writes to another system, compare the sample run with any durable destination reference. A failed run record alone leaves open whether the write occurred. That distinction determines what the recovery note can recommend for a repeated item.
Systems, inputs & prerequisites
An incident example, logs, a supported test workspace, and the current flow owner.
- Provide a failed run or reproducible input, the expected outcome, and relevant logs with sensitive data removed where possible.
- Provide an authorized test workspace and a workflow owner who can confirm expected behavior and recovery boundaries.
Starting scope & pricing
Base scope
One existing workflow, one reproducible failure mode, and one regression test set.
Illustrative workflow
Recreate fault
Reproduce a retry after the ticket has already been written.
Check identity
Verify that the correction can recognize the existing ticket.
Retest replay
Run the same example again and verify that it leaves one ticket.
Validation & handover
- Confirm that the original input reproduces the agreed fault in the test workspace and record the step and observable symptom.
- Run the corrected path against the failure example and the ordinary example. Compare the resulting state and any downstream write with the expected result.
- Review the recovery note with the owner. Identify which state the operator must verify before retrying an affected item and when to stop and escalate.
Limitations & possible extras
Limitations
The repair depends on being able to reproduce the failure in a supported environment. Redesign, large replays or backfills, and provider changes require separate scope.
If the underlying tool cannot reproduce or support the behavior, the next step is separately scoped.
Possible extras
Redesign, large replay or backfill, and provider changes.
Questions about this service
Can we replay the whole failed queue after the fix passes?
Use the recovery note to classify items by whether they reached the destination. A large replay requires its own assessment of volume, existing writes, and downstream effects.
What if the failure only appears with production data?
Share an authorized incident record or a sanitized input that preserves the condition causing the fault. If the supported test workspace cannot reproduce it, agree on the next diagnostic step separately.
What if we find a second fault while reproducing the first?
The starting scope covers one reproducible failure mode. Record the second symptom and check whether it shares the same cause. A separate fault can be scoped from that evidence.
How do we know the repair preserved the ordinary route?
The regression set includes a representative successful input and the original failing input. Compare their expected outcomes and destination effects after the correction.