#987 — [ai] NBA observability + idempotency

Repo: Twill-AI/facade State: closed | Status: done Assignee: Unassigned

Created: 2026-02-03 · Updated: 2026-02-03

Description

Add observability metadata to NBA outputs and logs:

  • model_version, prompt_version, token usage
  • trace/log prefix integration
  • idempotency windowing for recommendations Include latency/timing measurements and safe fallbacks.

Notes

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