fix: restore Codex cook skill discovery

src/autoskillit/workspace/session_skills.py

@@ -285,6 +285,34 @@ def materialize_codex_profile_skills(
     return len(_materialize_codex_profile_skill_infos(session_dir, backend))
 
 
+def _link_generated_home_skill_view(
+    generated_home: Path,
+    projected_skills: Path,
+    *,
+    skills_subdir: Path,
+) -> int:
+    """Expose projected skills at a persistent backend's home discovery root."""
+    discovery_root = generated_home / skills_subdir
+    discovery_root.mkdir(parents=True, exist_ok=True)
+    count = 0
+    for source in sorted(projected_skills.iterdir(), key=lambda entry: entry.name):
+        skill_md = source / "SKILL.md"
+        if source.is_symlink() or not source.is_dir() or not skill_md.is_file():
+            raise SkillContractError(f"invalid projected session skill directory: {source}")
+        target = discovery_root / source.name
+        if os.path.lexists(target):
+            logger.debug(
+                "generated_home_skill_collision_preserved",
+                skill=source.name,
+                target=str(target),
+            )
+            continue
+        relative_source = Path(os.path.relpath(source, start=discovery_root))
+        target.symlink_to(relative_source, target_is_directory=True)
+        count += 1
+    return count
+
+
 def resolve_ephemeral_root() -> Path:
     """Return a writable ephemeral root directory for session skill dirs.
 
@@ -772,6 +800,13 @@ def _materialize_session(
             else tuple(record for record in records if record.source is not SkillSource.BUNDLED)
         )
         materialize_agent_skill_tree(skills_base, session_records, ungated_context)
+        if backend is not None and backend.capabilities.session_dir_persistent:
+            linked = _link_generated_home_skill_view(
+                generated_home,
+                skills_base,
+                skills_subdir=skills_subdir,
+            )
+            logger.debug("generated_home_skill_view_linked", count=linked)
         if backend is not None and backend.capabilities.session_dir_persistent:
             self._create_inert_rollout_paths(generated_home, backend)
         if backend is not None:

tests/workspace/test_session_skills_codex.py

@@ -108,6 +108,55 @@ def test_codex_init_session_creates_skills_subdir(make_session_skill_manager, co
     assert not (session_path / ClaudeDirectoryConventions.ADD_DIR_SKILLS_SUBDIR).exists()
 
 
+def test_codex_generated_home_links_projected_catalog_into_discovery_root(
+    make_session_skill_manager,
+    codex_env,
+) -> None:
+    mgr = make_session_skill_manager()
+    add_dir = _materialize(
+        mgr,
+        "sid",
+        backend=codex_env.backend,
+        names=frozenset({"investigate"}),
+    )
+
+    add_dir_path = Path(str(add_dir))
+    projected = add_dir_path / "skills" / "investigate"
+    discoverable = add_dir_path.parent / "skills" / "investigate"
+
+    assert discoverable.is_symlink()
+    assert not discoverable.readlink().is_absolute()
+    assert discoverable.resolve() == projected.resolve()
+
+
+def test_codex_generated_home_preserves_existing_profile_skill_on_collision(
+    make_session_skill_manager,
+    codex_env,
+) -> None:
+    profile_content = "---\nname: investigate\ndescription: profile copy\n---\n"
+
+    def setup_session_dir(session_dir: Path) -> None:
+        profile_skill = session_dir / "skills" / "investigate"
+        profile_skill.mkdir(parents=True)
+        (profile_skill / "SKILL.md").write_text(profile_content)
+
+    codex_env.backend.setup_session_dir.side_effect = setup_session_dir
+    mgr = make_session_skill_manager()
+    add_dir = _materialize(
+        mgr,
+        "sid",
+        backend=codex_env.backend,
+        names=frozenset({"investigate"}),
+    )
+
+    add_dir_path = Path(str(add_dir))
+    discoverable = add_dir_path.parent / "skills" / "investigate"
+
+    assert not discoverable.is_symlink()
+    assert (discoverable / "SKILL.md").read_text() == profile_content
+    assert (add_dir_path / "skills" / "investigate" / "SKILL.md").is_file()
+
+
 def test_codex_init_session_delegates_to_setup_session_dir(
     make_session_skill_manager, codex_env
 ) -> None: