Feature flags

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<a href="https://forumulate.com/p/watchtower/docs/flags"><img src="https://forumulate.com/api/public/orgs/watchtower/spaces/docs/pages/9e174519-7984-43b8-aada-3eec9ffa7788/social-card.svg?v=3e7ae33eec8b" alt="Feature flags" width="600" height="315"></a>

Watchtower shows flag context next to errors; it does not manage flags (use your flag service, or PostHog for experiments).

  • Flag changes: LaunchDarkly, Statsig, Unleash and Flagsmith post audit events to a change source; see change-events.md. They show as annotations on charts and rank as candidate causes of a regression.

  • Evaluations: logs and spans carrying the OpenTelemetry feature_flag.* attributes (feature_flag.key, feature_flag.provider_name, feature_flag.variant, feature_flag.result.value, feature_flag.evaluation.reason) are recognised, so an OpenFeature OTel hook is enough on the application side.

Status: change events and attribute recognition are in; the read-only GET /v1/projects/{p}/flags/{key}/context listing of evaluations next to errors is pending.

Updated