core: expose v2 model listing API (#25821)

packages/opencode/src/cli/cmd/debug/index.ts

@@ -16,6 +16,7 @@ import { SkillCommand } from "./skill"
 import { SnapshotCommand } from "./snapshot"
 import { AgentCommand } from "./agent"
 import { StartupCommand } from "./startup"
+import { V2Command } from "./v2"
 
 export const DebugCommand = cmd({
   command: "debug",
@@ -31,6 +32,7 @@ export const DebugCommand = cmd({
       .command(SnapshotCommand)
       .command(StartupCommand)
       .command(AgentCommand)
+      .command(V2Command)
       .command(InfoCommand)
       .command(PathsCommand)
       .command(WaitCommand)

packages/opencode/src/cli/cmd/debug/v2.ts

@@ -0,0 +1,40 @@
+import { EOL } from "os"
+import { Effect, Layer, Option } from "effect"
+import { Catalog } from "@opencode-ai/core/catalog"
+import { effectCmd } from "../../effect-cmd"
+import { PluginBoot } from "@/v2/plugin-boot"
+
+const layer = Catalog.defaultLayer.pipe(Layer.provide(PluginBoot.defaultLayer))
+
+export const V2Command = effectCmd({
+  command: "v2",
+  describe: "debug v2 catalog and built-in plugins",
+  instance: false,
+  handler: Effect.fn("Cli.debug.v2")(function* () {
+    const result = yield* Effect.gen(function* () {
+      const catalog = yield* Catalog.Service
+
+      const providers = (yield* catalog.provider.available()).sort((a, b) => a.id.localeCompare(b.id))
+      const all = (yield* catalog.provider.all()).sort((a, b) => a.id.localeCompare(b.id))
+      return {
+        providers,
+        default: catalog.model
+          .default()
+          .pipe(Effect.map(Option.map((item) => item.id)), Effect.map(Option.getOrUndefined)),
+        small: Object.fromEntries(
+          yield* Effect.all(
+            all.map((provider) =>
+              Effect.map(
+                catalog.model.small(provider.id),
+                (model) => [provider.id, Option.getOrUndefined(Option.map(model, (item) => item.id))] as const,
+              ),
+            ),
+            { concurrency: "unbounded" },
+          ),
+        ),
+      }
+    }).pipe(Effect.provide(layer), Effect.orDie)
+
+    process.stdout.write(JSON.stringify(result, null, 2) + EOL)
+  }),
+})