feat(aircoding): AirCoding V2 baseline — deterministic multi-agent architecture

Forked from OpenCode v1.17.4 with multi-agent system:
- 5 agents: aircoding, scheduler, worker, architect, reviewer
- Deterministic DAG scheduling engine (coordinator_tick)
- Tool whitelists as hard enforcement
- AirCoding validation plugin
- V1 requirements: C4 docs, ADR, AGENTS.md, debug-log.md
- Design documents in docs/

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

@@ -0,0 +1,107 @@
+import { describe, expect, mock } from "bun:test"
+import { Effect } from "effect"
+import { Catalog } from "@opencode-ai/core/catalog"
+import { PluginV2 } from "@opencode-ai/core/plugin"
+import { CerebrasPlugin } from "@opencode-ai/core/plugin/provider/cerebras"
+import { ProviderV2 } from "@opencode-ai/core/provider"
+import { it, model } from "./provider-helper"
+
+const cerebrasOptions: Record<string, unknown>[] = []
+
+void mock.module("@ai-sdk/cerebras", () => ({
+  createCerebras: (options: Record<string, unknown>) => {
+    const snapshot = { ...options }
+    cerebrasOptions.push(snapshot)
+    return {
+      languageModel: (modelID: string) => ({ modelID, provider: snapshot.name, specificationVersion: "v3" }),
+    }
+  },
+}))
+
+describe("CerebrasPlugin", () => {
+  it.effect("applies the legacy integration header", () =>
+    Effect.gen(function* () {
+      const plugin = yield* PluginV2.Service
+      const catalog = yield* Catalog.Service
+      yield* plugin.add(CerebrasPlugin)
+      const transform = yield* catalog.transform()
+      yield* transform((catalog) => {
+        catalog.provider.update(ProviderV2.ID.make("cerebras"), (item) => {
+          item.api = { type: "aisdk", package: "@ai-sdk/cerebras" }
+          item.request.headers.Existing = "1"
+        })
+      })
+      expect((yield* catalog.provider.get(ProviderV2.ID.make("cerebras"))).request.headers).toEqual({
+        Existing: "1",
+        "X-Cerebras-3rd-Party-Integration": "opencode",
+      })
+    }),
+  )
+
+  it.effect("ignores non-Cerebras providers", () =>
+    Effect.gen(function* () {
+      const plugin = yield* PluginV2.Service
+      const catalog = yield* Catalog.Service
+      yield* plugin.add(CerebrasPlugin)
+      const transform = yield* catalog.transform()
+      yield* transform((catalog) => catalog.provider.update(ProviderV2.ID.make("groq"), () => {}))
+      expect((yield* catalog.provider.get(ProviderV2.ID.make("groq"))).request.headers).toEqual({})
+    }),
+  )
+
+  it.effect("creates a bundled Cerebras SDK with the model provider ID as the SDK name", () =>
+    Effect.gen(function* () {
+      cerebrasOptions.length = 0
+      const plugin = yield* PluginV2.Service
+      yield* plugin.add(CerebrasPlugin)
+      const result = yield* plugin.trigger(
+        "aisdk.sdk",
+        {
+          model: model("custom-cerebras", "llama-4-scout-17b-16e-instruct"),
+          package: "@ai-sdk/cerebras",
+          options: { name: "custom-cerebras", apiKey: "test" },
+        },
+        {},
+      )
+      expect(cerebrasOptions).toEqual([{ name: "custom-cerebras", apiKey: "test" }])
+      expect(result.sdk.languageModel("llama-4-scout-17b-16e-instruct").provider).toBe("custom-cerebras")
+    }),
+  )
+
+  it.effect("preserves an explicit bundled Cerebras SDK name option", () =>
+    Effect.gen(function* () {
+      cerebrasOptions.length = 0
+      const plugin = yield* PluginV2.Service
+      yield* plugin.add(CerebrasPlugin)
+      yield* plugin.trigger(
+        "aisdk.sdk",
+        {
+          model: model("custom-cerebras", "llama-4-scout-17b-16e-instruct"),
+          package: "@ai-sdk/cerebras",
+          options: { name: "configured-cerebras", apiKey: "test" },
+        },
+        {},
+      )
+      expect(cerebrasOptions).toEqual([{ name: "configured-cerebras", apiKey: "test" }])
+    }),
+  )
+
+  it.effect("ignores non-Cerebras SDK packages", () =>
+    Effect.gen(function* () {
+      cerebrasOptions.length = 0
+      const plugin = yield* PluginV2.Service
+      yield* plugin.add(CerebrasPlugin)
+      const result = yield* plugin.trigger(
+        "aisdk.sdk",
+        {
+          model: model("custom-cerebras", "llama-4-scout-17b-16e-instruct"),
+          package: "@ai-sdk/groq",
+          options: { name: "custom-cerebras", apiKey: "test" },
+        },
+        {},
+      )
+      expect(cerebrasOptions).toEqual([])
+      expect(result.sdk).toBeUndefined()
+    }),
+  )
+})