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feat(audit): add phase0 backend drift and freshness gates

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William Valentin
2026-02-27 09:01:43 -08:00
parent 68cdc2cf8b
commit 20224f1601
10 changed files with 1157 additions and 7 deletions
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docs/architecture/AGENT_DIAGRAM.md
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@@ -170,6 +170,7 @@ Gateway streaming UX signals:
- `pnpm audit:phase0-baseline:live:pi` and `pnpm audit:phase0-baseline:live:native` capture backend-scoped channel windows using `backend.route` timelines.
- `pnpm audit:phase0-baseline:live:gateway` captures gateway-origin baseline windows by auto-selecting the latest cancel/cancelled session window (or use `scripts/capture-phase0-live-baseline.ts --source gateway --since ... --until ...` for explicit windows).
- `pnpm audit:phase0-baseline:live:refresh` runs both channel + gateway capture commands in one step for cadence refreshes.
- `pnpm audit:phase0-baseline:live:drift` evaluates backend-scoped artifact freshness/drift gates, and `pnpm audit:phase0-baseline:live:refresh:drift` runs capture + drift checks in one cadence step.
- `audit:phase0-baseline:live*` scripts are cadence-safe by default (UTC-date tags auto-generated unless explicitly overridden).
- Canvas artifacts are persisted by the gateway so session UI surfaces can recover after daemon restarts.
- TTS synthesis uses an ordered provider chain with health cooldown tracking; if all providers fail, replies degrade to text-only without dropping the response.