diff --git a/docker-compose.yml b/docker-compose.yml
index f22be2b..4b55d1c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -97,6 +97,10 @@ services:
       OIKOS_DATABASE_URL: postgres://oikos:${OIKOS_DB_PASSWORD:-oikos_dev}@postgres:5432/oikos?sslmode=disable
       OIKOS_DEBUG: "true"
       OIKOS_APPROVAL_HMAC_SECRET: ${OIKOS_APPROVAL_HMAC_SECRET:-dev-secret}
+      OIKOS_MATRIX_HOMESERVER: ${OIKOS_MATRIX_HOMESERVER:-https://matrix.hubris.network}
+      OIKOS_MATRIX_USER: ${OIKOS_MATRIX_USER:-@hermes:hubris.network}
+      OIKOS_MATRIX_TOKEN: ${OIKOS_MATRIX_TOKEN}
+      OIKOS_MATRIX_ROOM: ${OIKOS_MATRIX_ROOM:-!alerts:hubris.network}
     command: ["notifier"]
     stop_signal: SIGTERM
     stop_grace_period: 30s
diff --git a/scripts/cutover-checklist.md b/scripts/cutover-checklist.md
index 0d457fc..c138ecc 100644
--- a/scripts/cutover-checklist.md
+++ b/scripts/cutover-checklist.md
@@ -27,7 +27,7 @@ Status: [x] = done, [ ] = pending
 - [x] **Agent activity**: `curl http://localhost:8090/api/v1/agent-activity` → returns data
 - [x] **Scheduler ticking**: 30s ticks logged
 - [x] **Notifier polling**: running
-- [x] **Watchdog tested**: 2026-07-07 — API stop/reset cycle verified. Failure detection + counting + automatic reset all work. Crontab path fixed (was stale .claude/worktrees/goofy-austin-b648b8 path, now /Users/dtoro/Projects/oikos). Matrix alert path not tested — needs MATRIX_TOKEN for full end-to-end.
+- [x] **Watchdog tested**: 2026-07-07 — full cycle verified. API down → failure counting → Matrix alert sent (!alerts:hubris.network) → API recovery → counter reset. Crontab path fixed (was stale worktree path, now /Users/dtoro/Projects/oikos). MATRIX_TOKEN wired in crontab env.
 
 ## Rollback drill