fix(core): move instance middleware after control plane routes (#23150)

packages/opencode/src/server/routes/instance/index.ts

@@ -15,6 +15,7 @@ import { Command } from "@/command"
 import { QuestionRoutes } from "./question"
 import { PermissionRoutes } from "./permission"
 import { Flag } from "@/flag/flag"
+import { WorkspaceID } from "@/control-plane/schema"
 import { ExperimentalHttpApiServer } from "./httpapi/server"
 import { ProjectRoutes } from "./project"
 import { SessionRoutes } from "./session"
@@ -27,9 +28,10 @@ import { ProviderRoutes } from "./provider"
 import { EventRoutes } from "./event"
 import { SyncRoutes } from "./sync"
 import { AppRuntime } from "@/effect/app-runtime"
+import { InstanceMiddleware } from "./middleware"
 
-export const InstanceRoutes = (upgrade: UpgradeWebSocket): Hono => {
-  const app = new Hono()
+export const InstanceRoutes = (upgrade: UpgradeWebSocket, workspaceID?: WorkspaceID): Hono => {
+  const app = new Hono().use(InstanceMiddleware(workspaceID))
 
   if (Flag.OPENCODE_EXPERIMENTAL_HTTPAPI) {
     const handler = ExperimentalHttpApiServer.webHandler().handler

packages/opencode/src/server/routes/instance/middleware.ts

@@ -0,0 +1,35 @@
+import type { MiddlewareHandler } from "hono"
+import { Instance } from "@/project/instance"
+import { InstanceBootstrap } from "@/project/bootstrap"
+import { AppRuntime } from "@/effect/app-runtime"
+import { AppFileSystem } from "@opencode-ai/shared/filesystem"
+import { WorkspaceContext } from "@/control-plane/workspace-context"
+import { WorkspaceID } from "@/control-plane/schema"
+
+export function InstanceMiddleware(workspaceID?: WorkspaceID): MiddlewareHandler {
+  return async (c, next) => {
+    const raw = c.req.query("directory") || c.req.header("x-opencode-directory") || process.cwd()
+    const directory = AppFileSystem.resolve(
+      (() => {
+        try {
+          return decodeURIComponent(raw)
+        } catch {
+          return raw
+        }
+      })(),
+    )
+
+    return WorkspaceContext.provide({
+      workspaceID,
+      async fn() {
+        return Instance.provide({
+          directory,
+          init: () => AppRuntime.runPromise(InstanceBootstrap),
+          async fn() {
+            return next()
+          },
+        })
+      },
+    })
+  }
+}