docs(audit): add phase0 baseline cadence scheduling runbook

docs/plans/state.json

@@ -133,7 +133,7 @@
       "status": "completed",
       "date": "2026-02-27",
       "updated": "2026-02-27",
-      "summary": "Automated gateway live-window capture by adding auto-detection of the latest gateway cancel/cancelled window (`--auto-gateway-cancel-window`) plus a one-shot refresh command that regenerates both channel and gateway artifacts together (`pnpm audit:phase0-baseline:live:refresh`).",
+      "summary": "Automated gateway live-window capture by adding auto-detection of the latest gateway cancel/cancelled window (`--auto-gateway-cancel-window`) plus a one-shot refresh command that regenerates both channel and gateway artifacts together (`pnpm audit:phase0-baseline:live:refresh`). Phase-0 live package scripts now omit fixed tags so scheduled runs default to UTC-date artifact tags.",
       "files_modified": [
         "src/audit/phase0GatewayWindow.ts",
         "src/audit/phase0GatewayWindow.test.ts",
@@ -150,6 +150,21 @@
       ],
       "test_status": "pnpm audit:phase0-baseline:live:refresh + pnpm test:run src/audit/phase0GatewayWindow.test.ts src/audit/phase0LiveBaseline.test.ts src/audit/phase0BaselineSummary.test.ts + pnpm typecheck passing"
     },
+    "phase0-live-baseline-cadence-runbook": {
+      "status": "completed",
+      "date": "2026-02-27",
+      "updated": "2026-02-27",
+      "summary": "Documented host-level operational cadence scheduling for phase-0 baseline refresh with a concrete cron example and clarified that package scripts auto-generate UTC-date tags when `--tag` is omitted.",
+      "files_modified": [
+        "README.md",
+        "docs/api/PROTOCOL.md",
+        "docs/architecture/AGENT_DIAGRAM.md",
+        "docs/architecture/GATEWAY_SESSIONS_AND_QUEUE.md",
+        "docs/plans/2026-02-25-phase0-instrumentation-ticket-checklist.md",
+        "docs/plans/state.json"
+      ],
+      "test_status": "documentation/package-script runbook update only; validated via pnpm audit:phase0-baseline:live:refresh + pnpm typecheck"
+    },
     "phase0-instrumentation-ticket-checklist": {
       "status": "completed",
       "date": "2026-02-25",
@@ -7336,7 +7351,7 @@
     "deeper_surfaces_phase0_ticket_03": "completed — gateway metrics now track run-state outcomes, cancel latency samples, and reaction decision counters with routing/gateway emitters",
     "deeper_surfaces_phase0_ticket_04": "completed — added phase-0 baseline summary tooling for run outcomes, cancel latency, and reaction decisions with markdown/json CLI output",
     "deeper_surfaces_phase0_ticket_05": "completed — documented phase-0 telemetry fields/workflow, refreshed architecture/protocol docs, and generated anonymized live baseline artifacts for both channel-origin and gateway-origin traffic (including cancel-path coverage)",
-    "next_up": "Phase-0 baseline refresh flow is now automated for channel + gateway windows (`pnpm audit:phase0-baseline:live:refresh`); next step is scheduling this command on an operational cadence before additional run-control/reaction semantic changes.",
+    "next_up": "Apply `pnpm audit:phase0-baseline:live:refresh` to the host scheduler (cron/systemd timer) in each active environment and monitor artifact freshness over at least one full cadence cycle before additional run-control/reaction semantic changes.",
     "pi_embedded_canary_spike": "completed — added optional pi_embedded backend adapter, canary-safe no-tools routing guard, backend success/fallback latency audit events, and docs/diagram updates while native remains default",
     "pi_embedded_evaluation_phase": "completed — final decision rollback (applied in runtime config): Window A failed latency/fallback gates (p50 +259ms, p95 +5695ms, fallback 25%, categories: pi_module_interface/empty_assistant_text); Window B remained sample-insufficient; controlled probes verified guard coverage (pi_no_tools_mode/capability_query/attachments_present each hit once)",
     "pi_embedded_manual_mode": "completed — added persisted runtime backend controls for manual Pi activation/deactivation (`/runtime` preferred, `/backend` alias; `status`, `activate pi`, `deactivate pi`, `use config`) while keeping config-driven default routing",