feat(provider): Fix provider_id conflicts and remove connection test in custom provider

console/src/pages/Settings/Models/components/modals/ProviderConfigModal.tsx

@@ -387,15 +387,15 @@ export function ProviderConfigModal({
 
       // Validate connection before saving
       // For local providers, we might skip this or just check if models exist (which the backend does)
-      const result = await api.testProviderConnection(provider.id, {
-        api_key: values.api_key,
-        base_url: values.base_url,
-        chat_model: values.chat_model,
-      });
+      if (!provider.is_custom) {
+        const result = await api.testProviderConnection(provider.id, {
+          api_key: values.api_key,
+          base_url: values.base_url,
+          chat_model: values.chat_model,
+        });
 
-      if (!result.success) {
-        message.error(result.message || t("models.testConnectionFailed"));
-        if (!provider.is_custom) {
+        if (!result.success) {
+          message.error(result.message || t("models.testConnectionFailed"));
           // For built-in providers, we want to enforce valid config before saving
           return;
         }
@@ -502,14 +502,16 @@ export function ProviderConfigModal({
                 {t("models.revokeAuthorization")}
               </Button>
             )}
-            <Button
-              size="small"
-              icon={<ApiOutlined />}
-              onClick={handleTest}
-              loading={testing}
-            >
-              {t("models.testConnection")}
-            </Button>
+            {!provider.is_custom && (
+              <Button
+                size="small"
+                icon={<ApiOutlined />}
+                onClick={handleTest}
+                loading={testing}
+              >
+                {t("models.testConnection")}
+              </Button>
+            )}
           </div>
           <div className={styles.modalFooterRight}>
             <Button onClick={onClose}>{t("models.cancel")}</Button>

src/copaw/cli/providers_cmd.py

@@ -503,7 +503,7 @@ def add_provider_cmd(
     """Add a new custom provider."""
     manager = _manager()
     try:
-        asyncio.run(
+        provider_info = asyncio.run(
             manager.add_custom_provider(
                 ProviderInfo(
                     id=provider_id,
@@ -518,7 +518,12 @@ def add_provider_cmd(
     except ValueError as exc:
         click.echo(click.style(f"Error: {exc}", fg="red"))
         raise SystemExit(1) from exc
-    click.echo(f"✓ Custom provider '{name}' ({provider_id}) created.")
+    click.echo(
+        "✓ Custom provider "
+        f"'{provider_info.name}' ({provider_info.id}) created.",
+    )
+    if provider_info.id != provider_id:
+        click.echo(f"  requested id: {provider_id}")
     if base_url:
         click.echo(f"  base_url: {base_url}")
     click.echo(

src/copaw/providers/provider_manager.py

@@ -292,20 +292,31 @@ async def fetch_provider_models(
             )
             return []
 
+    def _resolve_custom_provider_id(self, provider_id: str) -> str:
+        """Resolve provider ID conflicts for a custom provider."""
+        base_id = provider_id
+        if base_id in self.builtin_providers:
+            base_id = f"{base_id}-custom"
+
+        resolved_id = base_id
+        while (
+            resolved_id in self.builtin_providers
+            or resolved_id in self.custom_providers
+        ):
+            resolved_id = f"{resolved_id}-new"
+
+        return resolved_id
+
     async def add_custom_provider(self, provider_data: ProviderInfo):
         # Add a new custom provider with the given data. This will update the
         # providers.json file and make the new provider available in the UI.
-        if provider_data.id in self.builtin_providers:
-            raise ValueError(
-                f"'{provider_data.id}' conflicts with a built-in provider.",
-            )
-        if provider_data.id in self.custom_providers:
-            raise ValueError(
-                f"Custom provider '{provider_data.id}' already exists.",
-            )
-        provider_data.is_custom = True
+        provider_payload = provider_data.model_dump()
+        provider_payload["id"] = self._resolve_custom_provider_id(
+            provider_data.id,
+        )
+        provider_payload["is_custom"] = True
         provider = self._provider_from_data(
-            provider_data.model_dump(),
+            provider_payload,
         )  # Validate provider data
         self.custom_providers[provider.id] = provider
         self._save_provider(provider, is_builtin=False)

tests/unit/providers/test_provider_manager.py

@@ -95,30 +95,33 @@ async def test_add_custom_provider_and_reload_from_storage(
         models=[ModelInfo(id="custom-model", name="Custom Model")],
     )
 
-    await manager.add_custom_provider(custom)
-    with pytest.raises(ValueError, match="conflicts with a built-in provider"):
-        await manager.add_custom_provider(
-            OpenAIProvider(
-                id="openai",
-                name="Conflict OpenAI",
-            ),
-        )
-
-    with pytest.raises(
-        ValueError,
-        match="Custom provider 'custom-openai' already exists",
-    ):
-        await manager.add_custom_provider(custom)
+    created = await manager.add_custom_provider(custom)
+    builtin_conflict = await manager.add_custom_provider(
+        OpenAIProvider(
+            id="openai",
+            name="Conflict OpenAI",
+        ),
+    )
+    duplicate = await manager.add_custom_provider(custom)
 
     reloaded = ProviderManager()
     loaded = reloaded.get_provider("custom-openai")
+    loaded_builtin_conflict = reloaded.get_provider("openai-custom")
+    loaded_duplicate = reloaded.get_provider("custom-openai-new")
 
+    assert created.id == "custom-openai"
+    assert builtin_conflict.id == "openai-custom"
+    assert duplicate.id == "custom-openai-new"
     assert loaded is not None
     assert isinstance(loaded, OpenAIProvider)
     assert loaded.is_custom is True
     assert loaded.base_url == "https://custom.example/v1"
     assert loaded.api_key == "sk-custom"
     assert [m.id for m in loaded.models] == ["custom-model"]
+    assert loaded_builtin_conflict is not None
+    assert isinstance(loaded_builtin_conflict, OpenAIProvider)
+    assert loaded_duplicate is not None
+    assert isinstance(loaded_duplicate, OpenAIProvider)
 
 
 async def test_activate_provider_persists_active_model(
@@ -222,7 +225,7 @@ def test_migrate_legacy_file_and_persist_active_model(
     assert active_model_file.exists()
 
 
-async def test_add_custom_provider_conflict_with_builtin_raises(
+async def test_add_custom_provider_conflict_resolution_loops_until_unique(
     isolated_secret_dir,
 ) -> None:
     manager = ProviderManager()
@@ -231,8 +234,17 @@ async def test_add_custom_provider_conflict_with_builtin_raises(
         name="Conflict OpenAI",
     )
 
-    with pytest.raises(ValueError, match="conflicts with a built-in provider"):
-        await manager.add_custom_provider(conflict)
+    first = await manager.add_custom_provider(conflict)
+    second = await manager.add_custom_provider(conflict)
+    third = await manager.add_custom_provider(conflict)
+
+    assert first.id == "openai-custom"
+    assert second.id == "openai-custom-new"
+    assert third.id == "openai-custom-new-new"
+
+    assert manager.get_provider("openai-custom") is not None
+    assert manager.get_provider("openai-custom-new") is not None
+    assert manager.get_provider("openai-custom-new-new") is not None
 
 
 def test_update_provider_for_builtin_persists_to_builtin_path(