refactor(core): migrate built-in tools to internal plugins (#34956)

packages/core/test/lib/tool.ts

@@ -2,7 +2,9 @@ import { AgentV2 } from "@opencode-ai/core/agent"
 import type { PermissionV2 } from "@opencode-ai/core/permission"
 import { SessionMessage } from "@opencode-ai/core/session/message"
 import { ToolRegistry } from "@opencode-ai/core/tool/registry"
-import { Effect } from "effect"
+import { Tools } from "@opencode-ai/core/tool/tools"
+import type { PluginContext } from "@opencode-ai/plugin/v2/effect"
+import { Effect, type Scope } from "effect"
 
 export const toolIdentity = {
   agent: AgentV2.ID.make("build"),
@@ -34,6 +36,29 @@ export function waitForTool(
   })
 }
 
+/**
+ * Registers a core tool plugin's tools against the real registry without booting the
+ * full plugin host. Only the tool domain is live; focused tool tests exercise
+ * registration, materialization, and settlement through the same path production uses.
+ */
+export const registerToolPlugin = <R>(plugin: {
+  readonly id: string
+  readonly effect: (context: PluginContext) => Effect.Effect<void, never, R>
+}): Effect.Effect<void, never, R | Tools.Service | Scope.Scope> =>
+  Effect.gen(function* () {
+    const tools = yield* Tools.Service
+    const context: Pick<PluginContext, "tool"> = {
+      tool: {
+        register: tools.register,
+        execute: {
+          before: () => Effect.die("registerToolPlugin does not support tool hooks"),
+          after: () => Effect.die("registerToolPlugin does not support tool hooks"),
+        },
+      },
+    }
+    yield* plugin.effect(context as PluginContext)
+  })
+
 export const settleTool = (registry: ToolRegistry.Interface, input: ToolRegistry.ExecuteInput, model = testModel) =>
   registry.materialize({ model }).pipe(Effect.flatMap((materialized) => materialized.settle(input)))