feat(coding-agent): add provider display names

closes #3956

AGENTS.md

@@ -161,7 +161,7 @@ Create provider file exporting:
 ### 6. Coding Agent (`packages/coding-agent/`)
 
 - `src/core/model-resolver.ts`: Add default model ID to `defaultModelPerProvider`
-- `src/modes/interactive/interactive-mode.ts`: Add API-key login display name to `API_KEY_LOGIN_PROVIDERS` so `/login` shows the provider for built-in API-key auth.
+- `src/core/provider-display-names.ts`: Add API-key login display name so `/login` and related UI show the provider for built-in API-key auth.
 - `src/cli/args.ts`: Add env var documentation
 - `README.md`: Add provider setup instructions
 - `docs/providers.md`: Add setup instructions, env var, and `auth.json` key

packages/coding-agent/CHANGELOG.md

@@ -4,6 +4,7 @@
 
 ### Added
 
+- Added top-level `name` support to `pi.registerProvider()` so extension-registered providers can show a friendly name in `/login` ([#3956](https://github.com/badlogic/pi-mono/issues/3956)).
 - Added `ctx.ui.getEditorComponent()` so extensions can wrap the currently configured custom editor factory ([#3935](https://github.com/badlogic/pi-mono/issues/3935)).
 
 ### Fixed

packages/coding-agent/docs/custom-provider.md

@@ -41,6 +41,7 @@ export default function (pi: ExtensionAPI) {
 
   // Register new provider with models
   pi.registerProvider("my-provider", {
+    name: "My Provider",
     baseUrl: "https://api.example.com",
     apiKey: "MY_API_KEY",
     api: "openai-completions",
@@ -544,6 +545,9 @@ Run tests with your provider/model pairs to verify compatibility.
 
 ```typescript
 interface ProviderConfig {
+  /** Display name for the provider in UI such as /login. */
+  name?: string;
+
   /** API endpoint URL. Required when defining models. */
   baseUrl?: string;
 

packages/coding-agent/docs/extensions.md

@@ -1515,6 +1515,7 @@ If you need to discover models from a remote endpoint, prefer an async extension
 ```typescript
 // Register a new provider with custom models
 pi.registerProvider("my-proxy", {
+  name: "My Proxy",
   baseUrl: "https://proxy.example.com",
   apiKey: "PROXY_API_KEY",  // env var name or literal
   api: "anthropic-messages",
@@ -1561,6 +1562,7 @@ pi.registerProvider("corporate-ai", {
 ```
 
 **Config options:**
+- `name` - Display name for the provider in UI such as `/login`.
 - `baseUrl` - API endpoint URL. Required when defining models.
 - `apiKey` - API key or environment variable name. Required when defining models (unless `oauth` provided).
 - `api` - API type: `"anthropic-messages"`, `"openai-completions"`, `"openai-responses"`, etc.

packages/coding-agent/src/core/extensions/types.ts

@@ -1302,6 +1302,8 @@ export interface ExtensionAPI {
 
 /** Configuration for registering a provider via pi.registerProvider(). */
 export interface ProviderConfig {
+	/** Display name for the provider in UI. */
+	name?: string;
 	/** Base URL for the API endpoint. Required when defining models. */
 	baseUrl?: string;
 	/** API key or environment variable name. Required when defining models (unless oauth provided). */

packages/coding-agent/src/core/model-registry.ts

@@ -26,6 +26,7 @@ import { Compile } from "typebox/compile";
 import type { TLocalizedValidationError } from "typebox/error";
 import { getAgentDir } from "../config.js";
 import type { AuthStatus, AuthStorage } from "./auth-storage.js";
+import { BUILT_IN_PROVIDER_DISPLAY_NAMES } from "./provider-display-names.js";
 import {
 	clearConfigValueCache,
 	resolveConfigValueOrThrow,
@@ -177,6 +178,7 @@ const ModelOverrideSchema = Type.Object({
 type ModelOverride = Static<typeof ModelOverrideSchema>;
 
 const ProviderConfigSchema = Type.Object({
+	name: Type.Optional(Type.String({ minLength: 1 })),
 	baseUrl: Type.Optional(Type.String({ minLength: 1 })),
 	apiKey: Type.Optional(Type.String({ minLength: 1 })),
 	api: Type.Optional(Type.String({ minLength: 1 })),
@@ -727,6 +729,22 @@ export class ModelRegistry {
 		return { configured: true, source: "models_json_key" };
 	}
 
+	/**
+	 * Get display name for a provider.
+	 */
+	getProviderDisplayName(provider: string): string {
+		const registeredProvider = this.registeredProviders.get(provider);
+		const oauthProvider = this.authStorage.getOAuthProviders().find((p) => p.id === provider);
+
+		return (
+			registeredProvider?.name ??
+			registeredProvider?.oauth?.name ??
+			oauthProvider?.name ??
+			BUILT_IN_PROVIDER_DISPLAY_NAMES[provider] ??
+			provider
+		);
+	}
+
 	/**
 	 * Get API key for a provider.
 	 */
@@ -893,6 +911,7 @@ export class ModelRegistry {
  * Input type for registerProvider API.
  */
 export interface ProviderConfigInput {
+	name?: string;
 	baseUrl?: string;
 	apiKey?: string;
 	api?: Api;

packages/coding-agent/src/core/provider-display-names.ts

@@ -0,0 +1,24 @@
+export const BUILT_IN_PROVIDER_DISPLAY_NAMES: Record<string, string> = {
+	anthropic: "Anthropic",
+	"amazon-bedrock": "Amazon Bedrock",
+	"azure-openai-responses": "Azure OpenAI Responses",
+	cerebras: "Cerebras",
+	"cloudflare-workers-ai": "Cloudflare Workers AI",
+	deepseek: "DeepSeek",
+	fireworks: "Fireworks",
+	google: "Google Gemini",
+	"google-vertex": "Google Vertex AI",
+	groq: "Groq",
+	huggingface: "Hugging Face",
+	"kimi-coding": "Kimi For Coding",
+	mistral: "Mistral",
+	minimax: "MiniMax",
+	"minimax-cn": "MiniMax (China)",
+	opencode: "OpenCode Zen",
+	"opencode-go": "OpenCode Go",
+	openai: "OpenAI",
+	openrouter: "OpenRouter",
+	"vercel-ai-gateway": "Vercel AI Gateway",
+	xai: "xAI",
+	zai: "ZAI",
+};

packages/coding-agent/src/modes/interactive/interactive-mode.ts

@@ -72,6 +72,7 @@ import { type AppKeybinding, KeybindingsManager } from "../../core/keybindings.j
 import { createCompactionSummaryMessage } from "../../core/messages.js";
 import { defaultModelPerProvider, findExactModelReferenceMatch, resolveModelScope } from "../../core/model-resolver.js";
 import { DefaultPackageManager } from "../../core/package-manager.js";
+import { BUILT_IN_PROVIDER_DISPLAY_NAMES } from "../../core/provider-display-names.js";
 import type { ResourceDiagnostic } from "../../core/resource-loader.js";
 import { formatMissingSessionCwdPrompt, MissingSessionCwdError } from "../../core/session-cwd.js";
 import { type SessionContext, SessionManager } from "../../core/session-manager.js";
@@ -179,32 +180,6 @@ function hasDefaultModelProvider(providerId: string): providerId is keyof typeof
 
 const BEDROCK_PROVIDER_ID = "amazon-bedrock";
 
-const API_KEY_LOGIN_PROVIDERS: Record<string, string> = {
-	anthropic: "Anthropic",
-	[BEDROCK_PROVIDER_ID]: "Amazon Bedrock",
-	"azure-openai-responses": "Azure OpenAI Responses",
-	cerebras: "Cerebras",
-	"cloudflare-workers-ai": "Cloudflare Workers AI",
-	deepseek: "DeepSeek",
-	fireworks: "Fireworks",
-	google: "Google Gemini",
-	"google-vertex": "Google Vertex AI",
-	groq: "Groq",
-	huggingface: "Hugging Face",
-	"kimi-coding": "Kimi For Coding",
-	mistral: "Mistral",
-	minimax: "MiniMax",
-	"minimax-cn": "MiniMax (China)",
-	opencode: "OpenCode Zen",
-	"opencode-go": "OpenCode Go",
-	openai: "OpenAI",
-	openrouter: "OpenRouter",
-	"vercel-ai-gateway": "Vercel AI Gateway",
-	xai: "xAI",
-	zai: "ZAI",
-};
-
-const BUILT_IN_API_KEY_LOGIN_PROVIDERS = new Set(Object.keys(API_KEY_LOGIN_PROVIDERS));
 const BUILT_IN_MODEL_PROVIDERS = new Set<string>(getProviders());
 
 export function isApiKeyLoginProvider(
@@ -212,7 +187,7 @@ export function isApiKeyLoginProvider(
 	oauthProviderIds: ReadonlySet<string>,
 	builtInProviderIds: ReadonlySet<string> = BUILT_IN_MODEL_PROVIDERS,
 ): boolean {
-	if (BUILT_IN_API_KEY_LOGIN_PROVIDERS.has(providerId)) {
+	if (BUILT_IN_PROVIDER_DISPLAY_NAMES[providerId]) {
 		return true;
 	}
 	if (builtInProviderIds.has(providerId)) {
@@ -221,10 +196,6 @@ export function isApiKeyLoginProvider(
 	return !oauthProviderIds.has(providerId);
 }
 
-export function getApiKeyProviderDisplayName(providerId: string): string {
-	return API_KEY_LOGIN_PROVIDERS[providerId] ?? providerId;
-}
-
 /**
  * Options for InteractiveMode initialization.
  */
@@ -4374,7 +4345,7 @@ export class InteractiveMode {
 			}
 			options.push({
 				id: providerId,
-				name: getApiKeyProviderDisplayName(providerId),
+				name: this.session.modelRegistry.getProviderDisplayName(providerId),
 				authType: "api_key",
 			});
 		}
@@ -4385,7 +4356,6 @@ export class InteractiveMode {
 
 	private getLogoutProviderOptions(): AuthSelectorProvider[] {
 		const authStorage = this.session.modelRegistry.authStorage;
-		const oauthNameById = new Map(authStorage.getOAuthProviders().map((provider) => [provider.id, provider.name]));
 		const options: AuthSelectorProvider[] = [];
 
 		for (const providerId of authStorage.list()) {
@@ -4395,10 +4365,7 @@ export class InteractiveMode {
 			}
 			options.push({
 				id: providerId,
-				name:
+				name: this.session.modelRegistry.getProviderDisplayName(providerId),
-					credential.type === "oauth"
-						? (oauthNameById.get(providerId) ?? providerId)
-						: getApiKeyProviderDisplayName(providerId),
 				authType: credential.type,
 			});
 		}

packages/coding-agent/test/model-registry.test.ts

@@ -841,6 +841,56 @@ describe("ModelRegistry", () => {
 	});
 
 	describe("dynamic provider lifecycle", () => {
+		test("getProviderDisplayName resolves registered, OAuth, built-in, and fallback names", () => {
+			const registry = ModelRegistry.create(authStorage, modelsJsonPath);
+
+			expect(registry.getProviderDisplayName("openai")).toBe("OpenAI");
+			expect(registry.getProviderDisplayName("github-copilot")).toBe("GitHub Copilot");
+			expect(registry.getProviderDisplayName("unknown-provider")).toBe("unknown-provider");
+
+			registry.registerProvider("named-provider", {
+				name: "Named Provider",
+				baseUrl: "https://provider.test/v1",
+				apiKey: "TEST_KEY",
+				api: "openai-completions",
+				models: [
+					{
+						id: "demo-model",
+						name: "Demo Model",
+						reasoning: false,
+						input: ["text"],
+						cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
+						contextWindow: 128000,
+						maxTokens: 4096,
+					},
+				],
+			});
+			expect(registry.getProviderDisplayName("named-provider")).toBe("Named Provider");
+
+			registry.registerProvider("oauth-provider", {
+				baseUrl: "https://provider.test/v1",
+				api: "openai-completions",
+				oauth: {
+					name: "OAuth Provider",
+					login: async () => ({ access: "access", refresh: "refresh", expires: Date.now() + 60_000 }),
+					refreshToken: async (credentials) => credentials,
+					getApiKey: (credentials) => credentials.access,
+				},
+				models: [
+					{
+						id: "demo-model",
+						name: "Demo Model",
+						reasoning: false,
+						input: ["text"],
+						cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
+						contextWindow: 128000,
+						maxTokens: 4096,
+					},
+				],
+			});
+			expect(registry.getProviderDisplayName("oauth-provider")).toBe("OAuth Provider");
+		});
+
 		test("failed registerProvider does not persist invalid streamSimple config", () => {
 			const registry = ModelRegistry.create(authStorage, modelsJsonPath);
 

packages/coding-agent/test/oauth-selector.test.ts

@@ -3,8 +3,9 @@ import stripAnsi from "strip-ansi";
 import { afterEach, beforeAll, beforeEach, describe, expect, it } from "vitest";
 import { AuthStorage } from "../src/core/auth-storage.js";
 import { KeybindingsManager } from "../src/core/keybindings.js";
+import { BUILT_IN_PROVIDER_DISPLAY_NAMES } from "../src/core/provider-display-names.js";
 import { OAuthSelectorComponent } from "../src/modes/interactive/components/oauth-selector.js";
-import { getApiKeyProviderDisplayName, isApiKeyLoginProvider } from "../src/modes/interactive/interactive-mode.js";
+import { isApiKeyLoginProvider } from "../src/modes/interactive/interactive-mode.js";
 import { initTheme } from "../src/modes/interactive/theme/theme.js";
 
 const originalOpenAiApiKey = process.env.OPENAI_API_KEY;
@@ -31,7 +32,7 @@ describe("OAuthSelectorComponent", () => {
 		const builtInProviderIds = new Set(["anthropic", "github-copilot", "amazon-bedrock", "openai"]);
 
 		expect(isApiKeyLoginProvider("anthropic", oauthProviderIds, builtInProviderIds)).toBe(true);
-		expect(getApiKeyProviderDisplayName("anthropic")).toBe("Anthropic");
+		expect(BUILT_IN_PROVIDER_DISPLAY_NAMES.anthropic).toBe("Anthropic");
 		expect(isApiKeyLoginProvider("openai", oauthProviderIds, builtInProviderIds)).toBe(true);
 		expect(isApiKeyLoginProvider("github-copilot", oauthProviderIds, builtInProviderIds)).toBe(false);
 		expect(isApiKeyLoginProvider("amazon-bedrock", oauthProviderIds, builtInProviderIds)).toBe(true);