diff --git a/packages/opencode/script/seed-e2e.ts b/packages/opencode/script/seed-e2e.ts
index f34dd051db..fc3573548d 100644
--- a/packages/opencode/script/seed-e2e.ts
+++ b/packages/opencode/script/seed-e2e.ts
@@ -11,46 +11,52 @@ const seed = async () => {
   const { Instance } = await import("../src/project/instance")
   const { InstanceBootstrap } = await import("../src/project/bootstrap")
   const { Config } = await import("../src/config/config")
+  const { disposeRuntime } = await import("../src/effect/runtime")
   const { Session } = await import("../src/session")
   const { MessageID, PartID } = await import("../src/session/schema")
   const { Project } = await import("../src/project/project")
   const { ModelID, ProviderID } = await import("../src/provider/schema")
   const { ToolRegistry } = await import("../src/tool/registry")
 
-  await Instance.provide({
-    directory: dir,
-    init: InstanceBootstrap,
-    fn: async () => {
-      await Config.waitForDependencies()
-      await ToolRegistry.ids()
+  try {
+    await Instance.provide({
+      directory: dir,
+      init: InstanceBootstrap,
+      fn: async () => {
+        await Config.waitForDependencies()
+        await ToolRegistry.ids()
 
-      const session = await Session.create({ title })
-      const messageID = MessageID.ascending()
-      const partID = PartID.ascending()
-      const message = {
-        id: messageID,
-        sessionID: session.id,
-        role: "user" as const,
-        time: { created: now },
-        agent: "build",
-        model: {
-          providerID: ProviderID.make(providerID),
-          modelID: ModelID.make(modelID),
-        },
-      }
-      const part = {
-        id: partID,
-        sessionID: session.id,
-        messageID,
-        type: "text" as const,
-        text,
-        time: { start: now },
-      }
-      await Session.updateMessage(message)
-      await Session.updatePart(part)
-      await Project.update({ projectID: Instance.project.id, name: "E2E Project" })
-    },
-  })
+        const session = await Session.create({ title })
+        const messageID = MessageID.ascending()
+        const partID = PartID.ascending()
+        const message = {
+          id: messageID,
+          sessionID: session.id,
+          role: "user" as const,
+          time: { created: now },
+          agent: "build",
+          model: {
+            providerID: ProviderID.make(providerID),
+            modelID: ModelID.make(modelID),
+          },
+        }
+        const part = {
+          id: partID,
+          sessionID: session.id,
+          messageID,
+          type: "text" as const,
+          text,
+          time: { start: now },
+        }
+        await Session.updateMessage(message)
+        await Session.updatePart(part)
+        await Project.update({ projectID: Instance.project.id, name: "E2E Project" })
+      },
+    })
+  } finally {
+    await Instance.disposeAll().catch(() => {})
+    await disposeRuntime().catch(() => {})
+  }
 }
 
 await seed()
diff --git a/packages/opencode/src/effect/runtime.ts b/packages/opencode/src/effect/runtime.ts
index 5a9e68d1e5..4d3e788bba 100644
--- a/packages/opencode/src/effect/runtime.ts
+++ b/packages/opencode/src/effect/runtime.ts
@@ -15,3 +15,7 @@ export const runtime = ManagedRuntime.make(
 export function runPromiseInstance<A, E>(effect: Effect.Effect<A, E, InstanceServices>) {
   return runtime.runPromise(effect.pipe(Effect.provide(Instances.get(Instance.directory))))
 }
+
+export function disposeRuntime() {
+  return runtime.dispose()
+}