fix(core): default public users to Big Pickle

packages/core/src/model.ts

@@ -208,7 +208,12 @@ const layer = Layer.effect(
         const all = Array.from(byProvider.values())
           .flatMap((models) => Array.from(models.values()))
           .sort((left, right) => right.time.released - left.time.released)
-        cached = freeze({ data, all, available: all.filter((model) => model.enabled), byProvider }, true)
+        const requested = data.defaultModel
+        const preferred = requested && byProvider.get(requested.providerID)?.get(requested.modelID)
+        const available = preferred?.enabled
+          ? [preferred, ...all.filter((model) => model.enabled && model !== preferred)]
+          : all.filter((model) => model.enabled)
+        cached = freeze({ data, all, available, byProvider }, true)
         return cached
       }
     })

packages/core/src/plugin/provider/opencode.ts

@@ -7,12 +7,14 @@ import { Bus } from "../../bus.js"
 import { Credential } from "../../credential.js"
 import { Integration } from "../../integration.js"
 import { IntegrationConnection } from "../../integration/connection.js"
+import { Model } from "../../model.js"
 import { Provider } from "../../provider.js"
 import { WebSearch } from "../../websearch.js"
 import { ConfigProvider } from "@opencode/schema/config/provider"
 import { Money } from "@opencode/schema/money"
 
 const defaultServer = "https://opencode.ai/console"
+const publicDefaultModelID = Model.ID.make("big-pickle")
 const clientID = "opencode-cli"
 const methodID = Integration.MethodID.make("device")
 const RemoteResponse = Schema.Struct({
@@ -255,6 +257,9 @@ export const OpencodePlugin = define<HttpClient.HttpClient | Bus.Service | Scope
           draft.enabled = false
         })
       }
+      if (models.get(item.provider.id, publicDefaultModelID)?.enabled) {
+        models.default.set(item.provider.id, publicDefaultModelID)
+      }
     })
 
     yield* ctx.websearch.transform((editor) => {

packages/core/test/plugin/provider-opencode.test.ts

@@ -1122,6 +1122,29 @@ describe("OpencodePlugin", () => {
     ),
   )
 
+  it.effect("defaults public users to Big Pickle", () =>
+    withEnv({ OPENCODE_API_KEY: undefined }, () =>
+      Effect.gen(function* () {
+        const catalog = yield* Provider.Service
+        const models = yield* Model.Service
+        yield* catalog.transform((catalog) => {
+          catalog.update(Provider.ID.opencode, () => {})
+          catalog.models.update(Provider.ID.opencode, Model.ID.make("jev-1.13-free"), (draft) => {
+            draft.cost = cost(0)
+            draft.time.released = Date.UTC(2026, 8, 15)
+          })
+          catalog.models.update(Provider.ID.opencode, Model.ID.make("big-pickle"), (draft) => {
+            draft.cost = cost(0)
+            draft.time.released = Date.UTC(2025, 9, 17)
+          })
+        })
+        yield* addPlugin()
+        expect((yield* models.default())?.id).toBe(Model.ID.make("big-pickle"))
+        expect((yield* models.available())[0]?.id).toBe(Model.ID.make("big-pickle"))
+      }),
+    ),
+  )
+
   it.effect("treats output-only cost as free without credentials", () =>
     withEnv({ OPENCODE_API_KEY: undefined }, () =>
       Effect.gen(function* () {