Export an incident recipe another engineer can rerun
An engineer reproduced the incident but left only terminal history. Export the scenario, fixture digests, scheduler seed, and safe configuration as a portable recipe.
- Focused work estimate
- 2h + prerequisites
- Priority in the scenario
- Medium
- Engineering practice
- Reproducibility · Incident tooling · Safe export
Estimated field mix
- Quality engineering60%
- Developer tooling40%
Field percentages are editorial estimates of the ticket's engineering focus. They total 100%; they are not measured time, proficiency scores, or ownership evidence.
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Project context
An integration team closes incidents with screenshots of provider dashboards, then struggles to reproduce the same delivery sequence. Build a synthetic event corpus and replay runner against an allowlisted local receiver.
Setup prerequisites
- Create a local receiver fixture with an inspectable event store.
- Use generated test signing keys and synthetic payloads only.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
- REPLAY-101 · Define a portable synthetic webhook fixture
- REPLAY-102 · Generate signatures from raw bytes and an injected clock
- REPLAY-105 · Exercise signature rotation without accepting expired requests
- REPLAY-103 · Assert duplicate delivery produces one business effect
- REPLAY-108 · Summarize deliveries and effects in separate report sections
- REPLAY-104 · Deliver update-before-create with a reproducible schedule
- REPLAY-106 · Reproduce a receiver commit followed by a dropped response
- REPLAY-107 · Block replay targets outside the approved local receiver
- REPLAY-109 · Honor Retry-After without creating an unbounded replay
Acceptance criteria
- The recipe resolves every fixture by immutable content digest and records the runner version.
- It excludes signing keys, credentials, destination overrides, and captured production payloads.
- A fresh local receiver can reproduce the expected effect and failure categories from the recipe.
Implementation constraints
- Require generated replacement keys on import.
- Keep original run reports separate from rerun reports.
Verification to include
- Export and rerun an out-of-order lost-response recipe in a clean temporary directory.
- Remove one referenced fixture and confirm import fails before sending requests.
Deliverables
- Incident-recipe export/import and a worked recovery exercise
Rollout and recovery
Use recipes for internal synthetic exercises first; reject unsupported runner or fixture versions with migration guidance.
Value of the work
For the engineer: Practice protocol verification, controlled fault injection, and reproducible incident investigation.
For the team: Review concrete evidence that webhook consumers tolerate real delivery failure patterns.
Evidence boundaries
Outcome Evidence: Tests, patches, and runbooks are requested deliverables. They become Outcome Evidence only through a qualified Mission and immutable Evidence IDs.
Ownership Evidence: Independent adaptation must be observed under a declared verification policy and cite immutable Evidence IDs. Completing a planning ticket establishes no Ownership Evidence.