fix(gateway): resolve uninstall lifecycle guard conflict

cron/lifecycle_guard.py

@@ -27,7 +27,7 @@ This is a defence-in-depth layer.  ``tools/terminal_tool.py`` blocks direct
 commands and shell scripts they reference when ``_HERMES_GATEWAY=1``. It also
 rejects ``launchctl submit`` in gateway sessions because launchd treats that
 primitive as a persistent KeepAlive job, not a one-shot task. ``hermes gateway
-stop|restart`` separately refuse to self-target from inside the gateway.
+stop|restart|uninstall`` separately refuse to self-target from inside the gateway.
 Blocking cron specs at creation time as well means the agent gets an immediate,
 informative rejection instead of scheduling a job that will only fail
 (silently) when it fires.
@@ -60,7 +60,8 @@ class GatewayLifecycleBlocked(ValueError):
 # actual shell-command-shaped strings, not on prose.
 _GATEWAY_LIFECYCLE_PATTERN = re.compile(
     r"(?i)"
-    # Branch A: `hermes gateway restart|stop` — the canonical foot-gun.
+    # Branch A: destructive `hermes gateway` operations.
+    # The destructive operations are restart, stop, and uninstall.
     # `start` is intentionally excluded: starting a gateway from inside a
     # gateway is benign (a no-op or "already running" error), and a
     # legitimate cron job might start a sibling profile's gateway.
@@ -70,7 +71,7 @@ _GATEWAY_LIFECYCLE_PATTERN = re.compile(
     # matching via the `/hermes` tail, while every real command position
     # (start of text, whitespace, `;`/`&`/`|`, `$(`, backtick, even a
     # U+FFFD from binary-content decoding) still matches.
-    r"(?:(?<![/\w.\-])hermes\s+gateway\s+(?:restart|stop)\b)"
+    r"(?:(?<![/\w.\-])hermes\s+gateway\s+(?:restart|stop|uninstall)\b)"
     # Branch B: launchctl ops on a hermes-gateway label. macOS launchd
     # labels look like `ai.hermes.gateway` / `hermes-gateway`. Requiring the
     # gateway identifier prevents blocking unrelated hermes services (e.g.

hermes_cli/gateway.py

@@ -7935,6 +7935,20 @@ def _gateway_command_inner(args):
             sys.exit(1)
 
     elif subcmd == "uninstall":
+        # Uninstall stops the managed service before removing it. Gate on
+        # PID-file ownership like stop/restart (#92560): the env marker is
+        # inherited by every descendant, and CLI sessions spawned under the
+        # gateway tree must stay able to manage it.
+        from tools.process_registry import _is_supervised_gateway_process
+
+        if _is_supervised_gateway_process():
+            print_error(
+                "Refusing to uninstall the gateway from inside the gateway process.\n"
+                "This command was blocked to prevent the gateway from terminating itself.\n"
+                "Use `hermes gateway uninstall` from a shell outside the running gateway."
+            )
+            sys.exit(1)
+
         if is_managed():
             managed_error("uninstall gateway service")
             return

tests/hermes_cli/test_gateway_restart_loop.py

@@ -28,6 +28,7 @@ class TestGatewayLifecyclePattern:
     @pytest.mark.parametrize("text", [
         "hermes gateway restart",
         "hermes gateway stop",
+        "hermes gateway uninstall",
         "hermes  gateway  restart",         # double spaces
         "Hermez Gateway Restart".lower().replace("z", "s"),  # case handled
         "HERMES GATEWAY RESTART",           # uppercase
@@ -43,6 +44,7 @@ class TestGatewayLifecyclePattern:
         "launchctl submit -l hermes-gateway-restart-helper -- /bin/sh helper.sh",
         # bootstrap loads an arbitrary plist — same laundering shape.
         "launchctl bootstrap gui/501 ~/Library/LaunchAgents/ai.hermes.gateway.restart-once.plist",
+        "launchctl bootout gui/501/ai.hermes.gateway",
         # The exact reported shape: split across shell line-continuations
         # (`\` immediately followed by a newline). `[^\n]*` alone can't span
         # that, so the verb and the gateway-label token land on different
@@ -400,7 +402,7 @@ class TestCronCreateLifecycleBlock:
 # ---------------------------------------------------------------------------
 
 class TestGatewaySelfTargetingGuard:
-    """Verify hermes gateway stop/restart refuse when _HERMES_GATEWAY=1."""
+    """Verify destructive gateway commands refuse inside the gateway."""
 
     def test_stop_refuses_inside_gateway(self, monkeypatch):
         from tools import process_registry
@@ -413,6 +415,15 @@ class TestGatewaySelfTargetingGuard:
             gateway_command(args)
         assert exc_info.value.code == 1
 
+    def test_uninstall_refuses_inside_gateway(self, monkeypatch):
+        monkeypatch.setenv("_HERMES_GATEWAY", "1")
+        from hermes_cli.gateway import gateway_command
+
+        args = Namespace(gateway_command="uninstall", system=False)
+        with pytest.raises(SystemExit) as exc_info:
+            gateway_command(args)
+        assert exc_info.value.code == 1
+
 
     def test_stop_allows_outside_gateway(self, monkeypatch):
         # With the gateway marker unset, the self-targeting guard must NOT
@@ -476,7 +487,9 @@ class TestTerminalToolGatewayLifecycleGuard:
         "systemctl --user restart hermes-gateway",
         "systemctl stop hermes-gateway.service",
         "hermes gateway restart",
+        "hermes gateway uninstall",
         "launchctl kickstart gui/501/ai.hermes.gateway",
+        "launchctl bootout gui/501/ai.hermes.gateway",
         # #62891 exact reported shape and its bootstrap sibling.
         "launchctl submit -l ai.hermes.gateway-hard-restart-no-photon-notice -- /bin/sh ~/.hermes/scripts/hard_restart_gateway_no_photon_notice.sh",
         "launchctl submit -l com.foo -- /path/gateway",

tools/terminal_tool.py

@@ -2870,7 +2870,7 @@ def terminal_tool(
         session_key = get_current_session_key(default="") or (task_id or "")
 
         # Hard-block: gateway lifecycle commands (systemctl/launchctl/hermes
-        # restart|stop targeting hermes-gateway) must never run inside the
+        # restart|stop|uninstall targeting hermes-gateway) must never run inside the
         # gateway process itself. The restart would SIGTERM the gateway, which
         # kills this very subprocess before it can complete — the service may
         # never restart. This mirrors the `hermes gateway restart` guard in
@@ -2978,8 +2978,8 @@ def terminal_tool(
                     "output": "",
                     "exit_code": 1,
                     "error": (
-                        "Blocked: command or referenced script cannot restart or stop "
-                        "the gateway from inside the gateway process. The gateway would "
+                        "Blocked: command or referenced script cannot restart, stop, or "
+                        "uninstall the gateway from inside the gateway process. The gateway would "
                         "kill this command before it could complete (SIGTERM propagates "
                         "to child processes). Run `hermes gateway restart` from a "
                         "separate shell outside the running gateway."