feat(coding-agent): add provider display names

closes #3956

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",
+};