skill: make Codex inbox monitor idle-token free

.claude-plugin/marketplace.base.json

@@ -9,7 +9,7 @@
   "plugins": [],
   "metadata": {
     "description": "Agent collaboration plugin marketplace",
-    "version": "4.5.2",
+    "version": "4.5.3",
     "repository": "https://github.com/sumitake/agent-collab"
   }
 }

.claude-plugin/marketplace.json

@@ -10,7 +10,7 @@
     {
       "name": "agent-collab",
       "description": "Unified dynamic-host collaboration package. Centralized skills and async coordination work without legacy packages; every model-execution route requires the verified signed plugin artifact.",
-      "version": "4.5.2",
+      "version": "4.5.3",
       "author": {
         "name": "John Osumi"
       },
@@ -32,7 +32,7 @@
   ],
   "metadata": {
     "description": "Agent collaboration plugin marketplace",
-    "version": "4.5.2",
+    "version": "4.5.3",
     "repository": "https://github.com/sumitake/agent-collab"
   }
 }

README.md

@@ -78,7 +78,7 @@ trust:
   primary's identity, model, and session dynamically — no per-host forks to
   drift out of sync.
 
-This public repository distributes that one package, **agent-collab** (v4.5.2), and is
+This public repository distributes that one package, **agent-collab** (v4.5.3), and is
 the source of truth for the coordinator policy, skills, migration tooling, the
 fail-closed runtime client, contribution governance, and release-safety checks.
 The signed and notarized darwin-arm64 native runtime is committed in this
@@ -129,7 +129,24 @@ Contributors need no access to the private build/sign system. See
 
 | Package | Version | Role |
 |---|---:|---|
-| `agent-collab` | 4.5.2 | Unified skills, dynamic host policy, migration preflight, and verified native-runtime client |
+| `agent-collab` | 4.5.3 | Unified skills, dynamic host policy, migration preflight, and verified native-runtime client |
+
+## What's new - v4.5.3
+
+- **New Codex inbox-monitor starts are idle-token free.** The canonical leased
+  local process keeps its existing 10-second filesystem interval, but the
+  Codex adapter no longer creates or retains a goal for liveness. State checks
+  now occur only on real activation, event, status, stop, or failure turns.
+  Legacy cleanup completes only a monitor goal proven by its structured
+  creation transcript and after the host proves its exec remains independently
+  live and controllable; otherwise it returns
+  `legacy_goal_detach_unavailable` without mutating either lifecycle.
+  Pre-4.5.3 sessions whose legacy goal cannot be safely detached may continue
+  receiving host-scheduled empty model turns until that goal is explicitly
+  stopped; every such turn is constrained to no exec or state poll.
+  Without a proven host-native event wake, Codex reports the honest
+  `degraded_no_event_wake` result instead of `armed`. Claude and Antigravity
+  monitor lifecycles are unchanged.
 
 ## What's new - v4.5.2
 

changelog.d/2026-07-28-monitor-idle-v453.md

@@ -0,0 +1,21 @@
+### agent-collab 4.5.3 — 2026-07-28
+
+#### Changed
+
+- The Codex inbox-monitor adapter no longer creates or retains a goal for
+  liveness. Its canonical leased local process continues at the existing
+  10-second interval, but liveness checks occur only on real activation, event,
+  status, stop, or failure turns, so the new goal-free lifecycle causes zero
+  idle model turns.
+- Codex reports `degraded_no_event_wake` when the local process is live without
+  a proven host-native model wake. Legacy cleanup ends only a goal whose
+  structured creation transcript proves the old monitor lifecycle and after
+  the host proves the exact retained exec is currently live and survives
+  independently; otherwise it returns `legacy_goal_detach_unavailable` and
+  leaves both lifecycles untouched.
+- When legacy detach proof is unavailable, the host may continue pre-4.5.3 goal
+  continuations until that goal is explicitly stopped. Every such empty turn is
+  constrained to no exec/state poll or lifecycle mutation, and explicit stop
+  reports `stop_incomplete_legacy_goal` rather than claiming success when the
+  old goal cannot be safely bound and ended.
+- Claude and Antigravity monitor lifecycles are unchanged.