fix(model): address gate feedback #4857080754 — slug names, list models, get_config, single YAML parse

- _repair_bare_custom_provider_model matches display-named providers via
  _custom_provider_slug_from_name (custom:my-proxy matches 'My Proxy').
- _ordered_custom_provider_model_ids now handles dict keys, list strings,
  and list dicts with id/model/name, aligned with api/config.py catalog.
- config_obj=None fallback uses get_config() instead of raw cfg.
- _read_profile_model_config returns profile config dict too, avoiding a
  second YAML parse on hot display paths.
- Tests added for slug matching, list-form models, and get_config fallback.

Co-authored-by: b3nw <b3nw@users.noreply.github.com>

api/routes.py

@@ -5760,14 +5760,16 @@ def _should_attach_codex_provider_context(model: str, raw_active_provider: str,
         )
     return False
 
-
 def _read_profile_model_config(
-    session, requested_provider: str | None,
+    session,
-) -> tuple[str | None, str | None]:
+    requested_provider: str | None,
-    """Read model.provider and model.default from the session's profile config.
+) -> tuple[str | None, str | None, dict | None]:
+    """Read model.provider, model.default, and the full profile config dict.
 
-    Returns (profile_provider, profile_default_model). Both are None when the
+    Returns (profile_provider, profile_default_model, profile_config_dict).
-    session has no profile or the profile config is unreadable.
+    The first two are None when the session has no profile or the profile config
+    is unreadable; profile_config_dict is None in the same cases so callers only
+    pay for one YAML parse.
 
     When the session already has an explicit ``requested_provider``, the profile
     ``model.provider`` is not returned (first tuple element is None) so profile
@@ -5776,7 +5778,7 @@ def _read_profile_model_config(
     provider matches ``requested_provider`` after normalization.
     """
     if not getattr(session, "profile", None):
-        return None, None
+        return None, None, None
 
     try:
         from api.profiles import get_hermes_home_for_profile
@@ -5784,16 +5786,16 @@ def _read_profile_model_config(
         _profile_home = get_hermes_home_for_profile(session.profile)
         _profile_cfg_path = os.path.join(str(_profile_home), "config.yaml")
         if not os.path.isfile(_profile_cfg_path):
-            return None, None
+            return None, None, None
         import yaml
 
         with open(_profile_cfg_path, encoding="utf-8") as _f:
             _pcfg = yaml.safe_load(_f) or {}
         if not isinstance(_pcfg, dict):
-            return None, None
+            return None, None, None
         _model_cfg = _pcfg.get("model") or {}
         if not isinstance(_model_cfg, dict):
-            return None, None
+            return None, None, _pcfg
         _provider = (_model_cfg.get("provider") or "").strip() or None
         _default = (_model_cfg.get("default") or "").strip() or None
     except Exception:
@@ -5802,15 +5804,15 @@ def _read_profile_model_config(
             getattr(session, "profile", None),
             exc_info=True,
         )
-        return None, None
+        return None, None, None
 
     _requested = _clean_session_model_provider(requested_provider)
     if _requested:
         _profile_prov = _clean_session_model_provider(_provider)
         if _profile_prov != _requested:
-            return None, None
+            return None, None, _pcfg
-        return None, _default
+        return None, _default, _pcfg
-    return _provider, _default
+    return _provider, _default, _pcfg
 
 
 def _load_profile_config_dict(session) -> dict | None:
@@ -5840,6 +5842,34 @@ def _load_profile_config_dict(session) -> dict | None:
         return None
 
 
+def _ordered_custom_provider_model_ids(entry: dict) -> list[str]:
+    """Model ids from a custom_providers entry (default model + dict/list models)."""
+    ordered: list[str] = []
+    _cp_model = str(entry.get("model") or "").strip()
+    if _cp_model:
+        ordered.append(_cp_model)
+    _cp_models = entry.get("models")
+    if isinstance(_cp_models, dict):
+        for _key in _cp_models.keys():
+            if isinstance(_key, str):
+                _kid = _key.strip()
+                if _kid and _kid not in ordered:
+                    ordered.append(_kid)
+    elif isinstance(_cp_models, list):
+        for _item in _cp_models:
+            if isinstance(_item, str):
+                _mid = _item.strip()
+                if _mid and _mid not in ordered:
+                    ordered.append(_mid)
+            elif isinstance(_item, dict):
+                _mid = str(
+                    _item.get("id") or _item.get("model") or _item.get("name") or ""
+                ).strip()
+                if _mid and _mid not in ordered:
+                    ordered.append(_mid)
+    return ordered
+
+
 def _repair_bare_custom_provider_model(
     bare_model: str,
     provider: str | None,
@@ -5851,11 +5881,12 @@ def _repair_bare_custom_provider_model(
     Returns the fully namespaced model id when ``bare_model`` matches the suffix
     of a registered id on ``custom_providers``; otherwise None. Model ids are
     scanned in config declaration order (default ``model`` first, then
-    ``models`` dict keys) so repair is deterministic when suffixes collide.
+    ``models`` dict keys or list entries) so repair is deterministic when
+    suffixes collide.
 
     When ``config_obj`` is set (typically the session profile's config.yaml),
-    only that object's ``custom_providers`` are scanned. Otherwise falls back
+    only that object's ``custom_providers`` are scanned. Otherwise uses
-    to the process-global config for backward-compatible test stubs.
+    ``get_config()`` for the active global config (not the raw ``cfg`` alias).
     """
     try:
         model = str(bare_model or "").strip()
@@ -5864,38 +5895,36 @@ def _repair_bare_custom_provider_model(
             return None
         if prov != "custom" and not str(prov).startswith("custom:"):
             return None
-        from api.config import _custom_provider_entries, cfg as _active_cfg
+        from api.config import (
+            _custom_provider_entries,
+            _custom_provider_slug_from_name,
+            get_config,
+        )
 
         if isinstance(config_obj, dict):
             _entries = _custom_provider_entries(config_obj)
         else:
+            _cfg = get_config()
             _entries = _custom_provider_entries(
-                _active_cfg if isinstance(_active_cfg, dict) else None
+                _cfg if isinstance(_cfg, dict) else None
             )
-        _cp_name = str(prov.split(":", 1)[1] if ":" in prov else "").strip()
+        prov_norm = str(prov).strip().lower()
-        if not _cp_name:
+        raw_suffix = prov_norm.removeprefix("custom:")
-            return None
-        _cp_name_lower = _cp_name.lower()
         _matching_cp = None
         for _entry in _entries:
-            _entry_name = str(_entry.get("name") or "").strip().lower()
+            entry_name = str(_entry.get("name") or "").strip().lower()
-            if _entry_name == _cp_name_lower:
+            slug = _custom_provider_slug_from_name(_entry.get("name"))
+            if not slug:
+                continue
+            if (
+                prov_norm in {entry_name, slug}
+                or raw_suffix == slug.removeprefix("custom:")
+            ):
                 _matching_cp = _entry
                 break
         if not _matching_cp:
             return None
-        _ordered_ids: list[str] = []
+        for _id in _ordered_custom_provider_model_ids(_matching_cp):
-        _cp_model = str(_matching_cp.get("model") or "").strip()
-        if _cp_model:
-            _ordered_ids.append(_cp_model)
-        _cp_models = _matching_cp.get("models")
-        if isinstance(_cp_models, dict):
-            for _key in _cp_models.keys():
-                if isinstance(_key, str):
-                    _kid = _key.strip()
-                    if _kid and _kid not in _ordered_ids:
-                        _ordered_ids.append(_kid)
-        for _id in _ordered_ids:
             if "/" in _id and _id.rsplit("/", 1)[-1] == model:
                 return _id
         return None
@@ -6355,8 +6384,7 @@ def _resolve_effective_session_model_for_display(session) -> str:
     """
     original_model = getattr(session, "model", None) or ""
     requested_provider = getattr(session, "model_provider", None)
-    _pp_provider, _pp_default = _read_profile_model_config(session, requested_provider)
+    _pp_provider, _pp_default, _pp_cfg = _read_profile_model_config(session, requested_provider)
-    _pp_cfg = _load_profile_config_dict(session)
     effective_model, _provider, _changed = _resolve_compatible_session_model_state(
         original_model or None,
         requested_provider,
@@ -6380,8 +6408,7 @@ def _resolve_effective_session_model_for_display(session) -> str:
 def _resolve_effective_session_model_provider_for_display(session) -> str | None:
     original_model = getattr(session, "model", None) or ""
     requested_provider = getattr(session, "model_provider", None)
-    _pp_provider, _pp_default = _read_profile_model_config(session, requested_provider)
+    _pp_provider, _pp_default, _pp_cfg = _read_profile_model_config(session, requested_provider)
-    _pp_cfg = _load_profile_config_dict(session)
     _model, provider, _changed = _resolve_compatible_session_model_state(
         original_model or None,
         requested_provider,
@@ -18541,8 +18568,7 @@ def start_session_turn(
     # background task before its first human turn has an empty s.model, and
     # without the profile defaults the resolver would fall back to the global
     # DEFAULT_MODEL instead of the profile's configured default (greptile flag).
-    _pp_provider, _pp_default = _read_profile_model_config(s, requested_provider)
+    _pp_provider, _pp_default, _pp_cfg = _read_profile_model_config(s, requested_provider)
-    _pp_cfg = _load_profile_config_dict(s)
     model, model_provider, normalized_model = _resolve_compatible_session_model_state(
         requested_model,
         requested_provider,
@@ -18718,8 +18744,7 @@ def _handle_goal_command(handler, body):
             if "model_provider" in body
             else getattr(s, "model_provider", None)
         )
-        _pp_provider, _pp_default = _read_profile_model_config(s, requested_provider)
+        _pp_provider, _pp_default, _pp_cfg = _read_profile_model_config(s, requested_provider)
-        _pp_cfg = _load_profile_config_dict(s)
         model, model_provider, normalized_model = _resolve_compatible_session_model_state(
             requested_model,
             requested_provider,
@@ -18771,8 +18796,7 @@ def _handle_goal_command(handler, body):
                 if "model_provider" in body
                 else getattr(s, "model_provider", None)
             )
-            _pp_provider, _pp_default = _read_profile_model_config(s, requested_provider)
+            _pp_provider, _pp_default, _pp_cfg = _read_profile_model_config(s, requested_provider)
-            _pp_cfg = _load_profile_config_dict(s)
             model, model_provider, normalized_model = _resolve_compatible_session_model_state(
                 requested_model,
                 requested_provider,
@@ -18918,8 +18942,7 @@ def _handle_chat_start(handler, body, diag=None):
             if "model_provider" in body
             else getattr(s, "model_provider", None)
         )
-        _pp_provider, _pp_default = _read_profile_model_config(s, requested_provider)
+        _pp_provider, _pp_default, _pp_cfg = _read_profile_model_config(s, requested_provider)
-        _pp_cfg = _load_profile_config_dict(s)
         explicit_model_pick = bool(body.get("explicit_model_pick"))
         moa_config = None
         if body.get("moa_config"):
@@ -19034,8 +19057,7 @@ def _handle_chat_sync(handler, body):
         _sync_requested_provider = (
             body.get("model_provider") if "model_provider" in body else getattr(s, "model_provider", None)
         )
-        _pp_provider, _pp_default = _read_profile_model_config(s, _sync_requested_provider)
+        _pp_provider, _pp_default, _pp_cfg = _read_profile_model_config(s, _sync_requested_provider)
-        _pp_cfg = _load_profile_config_dict(s)
         model, model_provider = _resolve_compatible_session_model_state(
             body.get("model") or s.model,
             _sync_requested_provider,

tests/test_issue5127_process_wakeup_bare_model.py

@@ -225,9 +225,69 @@ class TestRepairBareCustomProviderModel:
         ]
         with patch("api.config.cfg", {"custom_providers": custom_cfg}):
             assert _repair_bare_custom_provider_model(
-                "shared-suffix", "custom:llm-proxy"
+                "shared-suffix", "custom:llm-proxy",
+                config_obj={"custom_providers": custom_cfg},
             ) == "org-a/shared-suffix"
 
+    def test_repairs_display_name_provider_via_slug(self):
+        from api.routes import _repair_bare_custom_provider_model
+
+        cfg = {
+            "custom_providers": [
+                {
+                    "name": "My Proxy",
+                    "models": {"x-ai/grok-composer-2.5-fast": {}},
+                }
+            ]
+        }
+        assert _repair_bare_custom_provider_model(
+            "grok-composer-2.5-fast",
+            "custom:my-proxy",
+            config_obj=cfg,
+        ) == "x-ai/grok-composer-2.5-fast"
+
+    def test_repairs_list_form_models_catalog(self):
+        from api.routes import _repair_bare_custom_provider_model
+
+        cfg = {
+            "custom_providers": [
+                {
+                    "name": "team",
+                    "models": [
+                        "profile-list/shared",
+                        {"id": "profile-list/other"},
+                    ],
+                }
+            ]
+        }
+        assert _repair_bare_custom_provider_model(
+            "shared",
+            "custom:team",
+            config_obj=cfg,
+        ) == "profile-list/shared"
+
+    def test_uses_get_config_when_config_obj_is_none(self):
+        from unittest.mock import patch
+        from api.routes import _repair_bare_custom_provider_model
+
+        cfg = {
+            "custom_providers": [
+                {
+                    "name": "team",
+                    "models": {"vendor/shared": {}},
+                }
+            ]
+        }
+        with patch("api.config.get_config") as mock_get_config:
+            mock_get_config.return_value = cfg
+            result = _repair_bare_custom_provider_model(
+                "shared",
+                "custom:team",
+                config_obj=None,
+            )
+        assert result == "vendor/shared"
+        mock_get_config.assert_called_once_with()
+
     def test_malformed_custom_provider_name_fails_closed(self):
         from api.routes import _repair_bare_custom_provider_model
 
@@ -289,7 +349,7 @@ class TestReadProfileModelConfigWithExplicitProvider:
             lambda _p: str(profile_home),
         )
 
-        provider, default = _read_profile_model_config(_Session(), "custom:my-proxy")
+        provider, default, _ = _read_profile_model_config(_Session(), "custom:my-proxy")
         assert provider is None
         assert default == "x-ai/grok-composer-2.5-fast"
 
@@ -313,6 +373,6 @@ class TestReadProfileModelConfigWithExplicitProvider:
             lambda _p: str(profile_home),
         )
 
-        provider, default = _read_profile_model_config(_Session(), "custom:other-proxy")
+        provider, default, _ = _read_profile_model_config(_Session(), "custom:other-proxy")
         assert provider is None
         assert default is None