How would you make it easy to tell whether an incident was caused by a release or feature flag?

In production traceability is emitted by the delivery pipeline rather than depending on a manual incident note. Every artifact ties back to source commit, build, dependency manifest, approvals, deployment, environment, configuration version, and feature-flag change. Markers use one timeline and clock so a rollout can be compared with user and dependency metrics accurately. Rollback, roll-forward, and flag disablement create their own markers, and gradual rollouts expose the affected cohort without recording sensitive targeting data. This makes impact and recovery measurable and lets the team reconstruct what changed without searching chats or relying on memory.