diff --git a/scripts/hook_install.py b/scripts/hook_install.py
index 0647992..0230745 100644
--- a/scripts/hook_install.py
+++ b/scripts/hook_install.py
@@ -120,6 +120,31 @@ def version(host):
     return ".".join(map(str, actual))
 
 
+def codex_home():
+    return Path(os.environ.get("CODEX_HOME") or Path.home() / ".codex")
+
+
+def untrusted_project(host, project):
+    """Codex loads no project-local hooks until the project is trusted in its own
+    config, and says nothing at install time. A -c override does not satisfy it.
+
+    This only reports; it changes no trust and blocks nothing."""
+    if host != "codex":
+        return ""
+    path = codex_home() / "config.toml"
+    try:
+        data = path.read_bytes() if path.is_file() else b""
+    except OSError:
+        return ""
+    if f'[projects."{project}"]'.encode() in data:
+        return ""
+    return (
+        f" Codex has not been told to trust {project}: add a "
+        f'[projects."{project}"] entry with trust_level to {path}, or trust it '
+        "through the host. Until then it loads no project-local hooks at all."
+    )
+
+
 def locations(host, project):
     project = Path(project).expanduser().resolve(strict=True)
     result = subprocess.run(
@@ -698,4 +723,5 @@ def doctor(host, project):
         f"Installed presets: {', '.join(presets)}. Skill version {installed}. "
         f"Registration and runtime files match ({host} {version_string}). {portability} "
         "Trust/enabled state and real host delivery still require /hooks verification."
+        + untrusted_project(host, project)
     )
diff --git a/scripts/test_hook_presets.py b/scripts/test_hook_presets.py
index 1836853..01f669d 100644
--- a/scripts/test_hook_presets.py
+++ b/scripts/test_hook_presets.py
@@ -3,6 +3,7 @@
 import copy
 import hashlib
 import json
+import os
 import shlex
 import sys
 from pathlib import Path
@@ -160,6 +161,22 @@ def test_adding_a_preset_does_not_silently_rewrite_an_existing_shape(self):
                 hooks.remove(host, self.project, presets=["checkpoints"])
                 self.assertEqual(json.loads(receipt.read_bytes())["schema"], 2)
 
+    def test_check_hooks_says_when_codex_will_not_load_the_hooks(self):
+        """It reported a healthy registration while Codex loaded zero hooks."""
+        home = self.root / "codex-home"
+        home.mkdir()
+        with patch.dict(os.environ, {"CODEX_HOME": str(home)}):
+            self.install("codex", ["continuity"])
+            self.assertIn("has not been told to trust", hooks.doctor("codex", self.project))
+            (home / "config.toml").write_text(
+                f'[projects."{self.project}"]\ntrust_level = "trusted"\n')
+            self.assertNotIn("has not been told to trust",
+                             hooks.doctor("codex", self.project))
+            # Claude Code has no equivalent level, so it must never be told this.
+            self.install("claude-code", ["continuity"])
+            self.assertNotIn("has not been told to trust",
+                             hooks.doctor("claude-code", self.project))
+
     def test_check_hooks_names_a_changed_interpreter(self):
         """A groups mismatch caused by the interpreter must say so, not blame paths."""
         for host in hooks.PATHS: