fix(core): run Figma OAuth setup as plugin

packages/core/src/mcp/index.ts

@@ -15,7 +15,6 @@ import { Integration } from "../integration"
 import { IntegrationConnection } from "../integration/connection"
 import { KeyedMutex } from "../effect/keyed-mutex"
 import { Location } from "../location"
-import { FigmaPlugin } from "../plugin/figma"
 import { waitForAbort } from "@opencode-ai/util/process"
 import { State } from "../state"
 import { MCPClient } from "./client"
@@ -195,7 +194,6 @@ export const layer = (options?: Options) => Layer.effect(
     const urlElicitations = new Map<string, Form.ID>()
     for (const entry of documents) {
       for (const [name, server] of Object.entries(entry.info.mcp?.servers ?? {})) {
-        FigmaPlugin.apply(server)
         runtime.set(ServerName.make(name), {
           config: { ...server, timeout: { ...timeout, ...server.timeout } },
           status: { status: "pending" },
@@ -624,7 +622,6 @@ export const layer = (options?: Options) => Layer.effect(
             if (previous.integrationID) owned.delete(previous.integrationID)
             if (previous.registration) yield* previous.registration.dispose
           }
-          FigmaPlugin.apply(config)
           const entry: ServerEntry = {
             config: { ...config, timeout: { ...timeout, ...config.timeout } },
             status: { status: "pending" },

packages/core/src/plugin/figma.ts

@@ -1,6 +1,10 @@
 export * as FigmaPlugin from "./figma"
 
+import { define } from "@opencode-ai/plugin/v2/effect/plugin"
+import { Effect } from "effect"
+import { Config } from "../config"
 import { ConfigMCP } from "../config/mcp"
+import { MCP } from "../mcp/index"
 
 const CLIENT_ID = "3zVHNs9kINDDrk8loekLZV"
 
@@ -15,3 +19,19 @@ export function apply(server: typeof ConfigMCP.Server.Type) {
   Object.assign(server, { oauth: { client_id: CLIENT_ID } })
   return server
 }
+
+export const Plugin = define({
+  id: "opencode.figma",
+  effect: Effect.fn(function* () {
+    const config = yield* Config.Service
+    const mcp = yield* MCP.Service
+    const documents = (yield* config.entries()).filter((entry): entry is Config.Document => entry.type === "document")
+    for (const entry of documents) {
+      for (const [name, server] of Object.entries(entry.info.mcp?.servers ?? {})) {
+        if (server.type !== "remote" || !URL.canParse(server.url) || new URL(server.url).hostname !== "mcp.figma.com")
+          continue
+        yield* mcp.add(name, apply(server))
+      }
+    }
+  }),
+})

packages/core/src/plugin/internal.ts

@@ -24,6 +24,7 @@ import { Integration } from "../integration"
 import { Location } from "../location"
 import { LocationMutation } from "../location-mutation"
 import { ModelsDev } from "../models-dev"
+import { MCP } from "../mcp/index"
 import { Npm } from "@opencode-ai/util/npm"
 import { PermissionV2 } from "../permission"
 import { Reference } from "../reference"
@@ -48,6 +49,7 @@ import { WellKnown } from "../wellknown"
 import { WriteTool } from "../tool/write"
 import { AgentPlugin } from "./agent"
 import { CommandPlugin } from "./command"
+import { FigmaPlugin } from "./figma"
 import { ModelsDevPlugin } from "./models-dev"
 import { ProviderPlugins } from "./provider"
 import { PluginRuntime } from "./runtime"
@@ -73,6 +75,7 @@ const services = Effect.fn("PluginInternal.services")(function* () {
   const location = yield* Location.Service
   const locationMutation = yield* LocationMutation.Service
   const models = yield* ModelsDev.Service
+  const mcp = yield* MCP.Service
   const npm = yield* Npm.Service
   const permission = yield* PermissionV2.Service
   const runtime = yield* PluginRuntime.Service
@@ -102,6 +105,7 @@ const services = Effect.fn("PluginInternal.services")(function* () {
     Context.make(Location.Service, location),
     Context.make(LocationMutation.Service, locationMutation),
     Context.make(ModelsDev.Service, models),
+    Context.make(MCP.Service, mcp),
     Context.make(Npm.Service, npm),
     Context.make(PermissionV2.Service, permission),
     Context.make(PluginRuntime.Service, runtime),
@@ -126,6 +130,7 @@ export type InternalPlugin = Plugin<Requirements | Scope.Scope>
 
 const pre = [
   WellKnownPlugin.Plugin,
+  FigmaPlugin.Plugin,
   AgentPlugin.Plugin,
   CommandPlugin.Plugin,
   SkillPlugin.Plugin,

packages/core/src/plugin/supervisor.ts

@@ -23,6 +23,7 @@ import { Integration } from "../integration"
 import { Location } from "../location"
 import { LocationMutation } from "../location-mutation"
 import { ModelsDev } from "../models-dev"
+import { MCP } from "../mcp/index"
 import { Npm } from "@opencode-ai/util/npm"
 import { PermissionV2 } from "../permission"
 import { PluginV2 } from "../plugin"
@@ -292,6 +293,7 @@ export const node = makeLocationNode({
     Location.node,
     LocationMutation.node,
     ModelsDev.node,
+    MCP.node,
     Npm.node,
     PermissionV2.node,
     PluginRuntime.node,