core: expose v2 model listing API (#25821)

packages/core/src/provider.ts

@@ -0,0 +1,120 @@
+export * as ProviderV2 from "./provider"
+
+import { withStatics } from "./schema"
+import { Schema } from "effect"
+
+export const ID = Schema.String.pipe(
+  Schema.brand("ProviderV2.ID"),
+  withStatics((schema) => ({
+    // Well-known providers
+    opencode: schema.make("opencode"),
+    anthropic: schema.make("anthropic"),
+    openai: schema.make("openai"),
+    google: schema.make("google"),
+    googleVertex: schema.make("google-vertex"),
+    githubCopilot: schema.make("github-copilot"),
+    amazonBedrock: schema.make("amazon-bedrock"),
+    azure: schema.make("azure"),
+    openrouter: schema.make("openrouter"),
+    mistral: schema.make("mistral"),
+    gitlab: schema.make("gitlab"),
+  })),
+)
+export type ID = typeof ID.Type
+
+const OpenAIResponses = Schema.Struct({
+  type: Schema.Literal("openai/responses"),
+  url: Schema.String,
+  websocket: Schema.optional(Schema.Boolean),
+})
+
+const OpenAICompletions = Schema.Struct({
+  type: Schema.Literal("openai/completions"),
+  url: Schema.String,
+  reasoning: Schema.Union([
+    Schema.Struct({
+      type: Schema.Literal("reasoning_content"),
+    }),
+    Schema.Struct({
+      type: Schema.Literal("reasoning_details"),
+    }),
+  ]).pipe(Schema.optional),
+})
+export type OpenAICompletions = typeof OpenAICompletions.Type
+
+const AISDK = Schema.Struct({
+  type: Schema.Literal("aisdk"),
+  package: Schema.String,
+  url: Schema.String.pipe(Schema.optional),
+})
+
+const AnthropicMessages = Schema.Struct({
+  type: Schema.Literal("anthropic/messages"),
+  url: Schema.String,
+})
+
+const UnknownEndpoint = Schema.Struct({
+  type: Schema.Literal("unknown"),
+})
+
+export const Endpoint = Schema.Union([
+  UnknownEndpoint,
+  OpenAIResponses,
+  OpenAICompletions,
+  AnthropicMessages,
+  AISDK,
+]).pipe(Schema.toTaggedUnion("type"))
+export type Endpoint = typeof Endpoint.Type
+
+export const Options = Schema.Struct({
+  headers: Schema.Record(Schema.String, Schema.String),
+  body: Schema.Record(Schema.String, Schema.Any),
+  aisdk: Schema.Struct({
+    provider: Schema.Record(Schema.String, Schema.Any),
+    request: Schema.Record(Schema.String, Schema.Any),
+  }),
+})
+export type Options = typeof Options.Type
+
+export class Info extends Schema.Class<Info>("ProviderV2.Info")({
+  id: ID,
+  name: Schema.String,
+  enabled: Schema.Union([
+    Schema.Literal(false),
+    Schema.Struct({
+      via: Schema.Literal("env"),
+      name: Schema.String,
+    }),
+    Schema.Struct({
+      via: Schema.Literal("auth"),
+      service: Schema.String,
+    }),
+    Schema.Struct({
+      via: Schema.Literal("custom"),
+      data: Schema.Record(Schema.String, Schema.Any),
+    }),
+  ]),
+  env: Schema.String.pipe(Schema.Array),
+  endpoint: Endpoint,
+  options: Options,
+}) {
+  static empty(providerID: ID) {
+    return new Info({
+      id: providerID,
+      name: providerID,
+      enabled: false,
+      env: [],
+      endpoint: {
+        type: "unknown",
+      },
+      options: {
+        headers: {},
+        body: {},
+        aisdk: {
+          provider: {},
+          request: {},
+        },
+      },
+    })
+  }
+}