FA-21385 / Assistive announcements / Member archive

Cooldown deadline is measured from zero rather than emission time · case 05

The announcement trace violates the stated speech-cooldown contract.

Member previewVariant 5 · 3 implementations · 7 checks per implementation

Case contract

Each cue kind has its own cooldown duration. Emit [kind,text] speaks only when now reaches that kinds next allowed time; successful emission sets next to now+duration, suppression does not slide it. Tick is monotone. Configure affects future emissions only. Force speaks and resets its deadline. Reset-kind removes one cooldown history. Suspend blocks normal emission but preserves timestamps; resume enables it. Return output, next deadlines and now.

Why this case matters

Deterministic controlled model of assistive announcement delivery.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
trace-1	`[[["a", "first"], ["a", "next"]], [["a", 5]], 5, false]`	`[[["a", "first"], ["a", "next"]], [["a", 10]], 5, false]`	Failed

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