The markExperimentPoint path has three correctness bugs relative to the assign path:
Pooling divergence — mark used ad-hoc filtering instead of the full assign pipeline (processExperimentPools, inclusion/exclusion checks), so assign and mark could select different experiments for the same user and decision point.
Missing context — mark never received the context parameter, causing cross-context cache collisions (experiments from different contexts sharing a site/target could contaminate each other) and a fragile context-derivation hack.
No state filter — mark queried DecisionPointRepository directly, returning experiments in any state (e.g. CANCELLED), whereas assign only considers ENROLLING/ENROLLMENT_COMPLETE experiments.
Fix: Extract a shared resolveExperimentForMarkPoint method that mirrors the assign pipeline; add context: string to the mark validator and service signature; replace the mark-specific cache with the shared EXPERIMENT_KEY_PREFIX-{context} cache used by assign; and propagate the context field through the JS and Java client libraries.
The markExperimentPoint path has three correctness bugs relative to the assign path:
Pooling divergence — mark used ad-hoc filtering instead of the full assign pipeline (processExperimentPools, inclusion/exclusion checks), so assign and mark could select different experiments for the same user and decision point.
Missing context — mark never received the context parameter, causing cross-context cache collisions (experiments from different contexts sharing a site/target could contaminate each other) and a fragile context-derivation hack.
No state filter — mark queried DecisionPointRepository directly, returning experiments in any state (e.g. CANCELLED), whereas assign only considers ENROLLING/ENROLLMENT_COMPLETE experiments.
Fix: Extract a shared resolveExperimentForMarkPoint method that mirrors the assign pipeline; add context: string to the mark validator and service signature; replace the mark-specific cache with the shared EXPERIMENT_KEY_PREFIX-{context} cache used by assign; and propagate the context field through the JS and Java client libraries.