fix: stabilize v2 runtime behavior

packages/cli/src/commands/handlers/default.ts

@@ -11,6 +11,14 @@ export default Runtime.handler(Commands, (input) =>
     const daemon = yield* Daemon.Service
     const transport = yield* (input.standalone ? Standalone.transport() : daemon.transport())
     const { runTui } = yield* Effect.promise(() => import("../../tui"))
-    yield* runTui(transport)
+    yield* runTui(
+      transport,
+      input.standalone
+        ? undefined
+        : async () => {
+            await Effect.runPromise(daemon.stop())
+            return Effect.runPromise(daemon.transport())
+          },
+    )
   }),
 )

packages/cli/src/commands/handlers/serve.ts

@@ -32,12 +32,27 @@ export default Runtime.handler(
         if (input.register) yield* daemon.register(address)
         const url = HttpServer.formatAddress(address)
         console.log(input.stdio ? JSON.stringify({ url }) : `server listening on ${url}`)
-        return yield* Effect.never
+        return yield* (input.stdio ? waitForStdinClose() : Effect.never)
       }).pipe(Effect.annotateLogs({ role: "server" })),
     )
   }),
 )
 
+function waitForStdinClose() {
+  return Effect.callback<void>((resume) => {
+    const close = () => resume(Effect.void)
+    process.stdin.once("end", close)
+    process.stdin.once("close", close)
+    process.stdin.resume()
+    if (process.stdin.readableEnded || process.stdin.destroyed) close()
+    return Effect.sync(() => {
+      process.stdin.off("end", close)
+      process.stdin.off("close", close)
+      process.stdin.pause()
+    })
+  })
+}
+
 function listen(hostname: string, port: Option.Option<number>, password: string) {
   if (Option.isSome(port)) return bind(hostname, port.value, password)
   const next = (port: number): ReturnType<typeof bind> =>

packages/cli/src/services/daemon.ts

@@ -1,5 +1,5 @@
 import { Global } from "@opencode-ai/core/global"
-import { InstallationVersion } from "@opencode-ai/core/installation/version"
+import { InstallationChannel, InstallationVersion } from "@opencode-ai/core/installation/version"
 import { createOpencodeClient } from "@opencode-ai/sdk/v2/client"
 import { ServerAuth } from "@opencode-ai/server/auth"
 import { Context, Effect, FileSystem, Layer, Option, Schedule, Schema, Scope } from "effect"
@@ -41,7 +41,7 @@ export const layer = Layer.effect(
   Effect.gen(function* () {
     const fs = yield* FileSystem.FileSystem
     const directory = Global.Path.state
-    const file = path.join(directory, "server.json")
+    const file = path.join(directory, InstallationChannel === "local" ? "server-local.json" : "server.json")
     const configFile = path.join(Global.Path.config, "service.json")
     const legacyPasswordFile = path.join(directory, "password")
     const decodeRegistration = Schema.decodeUnknownEffect(Schema.fromJsonString(Registration))

packages/cli/src/services/standalone.ts

@@ -16,9 +16,12 @@ function command(password: string) {
     cwd: process.cwd(),
     env: { OPENCODE_SERVER_PASSWORD: password },
     extendEnv: true,
-    stdin: "ignore",
+    // The server treats EOF on this pipe as the end of its ownership lease.
+    // The OS closes it even when the TUI is killed before Effect finalizers run.
+    stdin: "pipe",
     stderr: "ignore",
-    killSignal: "SIGKILL",
+    killSignal: "SIGTERM",
+    forceKillAfter: "3 seconds",
   })
 }
 
@@ -30,7 +33,7 @@ export const transport = Effect.fn("cli.standalone.transport")(
     const output = yield* proc.stdout.pipe(Stream.decodeText(), Stream.splitLines, Stream.take(1), Stream.mkString)
     if (!output) return yield* Effect.fail(new Error("Standalone server exited before reporting readiness"))
     const ready = yield* Effect.tryPromise(() => decodeReady(output))
-    return { url: ready.url, headers: ServerAuth.headers({ password }) }
+    return { url: ready.url, headers: ServerAuth.headers({ password }), pid: proc.pid }
   },
   Effect.provide(CrossSpawnSpawner.defaultLayer),
 )

packages/cli/src/tui.ts

@@ -5,7 +5,9 @@ import { Global } from "@opencode-ai/core/global"
 import { loadBuiltinPlugins } from "@opencode-ai/tui/builtins"
 import { createOpencodeClient } from "@opencode-ai/sdk/v2/client"
 
-export function runTui(transport: { url: string; headers: RequestInit["headers"] }) {
+type Transport = { url: string; headers: RequestInit["headers"] }
+
+export function runTui(transport: Transport, reload?: () => Promise<Transport>) {
   const config = TuiConfig.resolve({}, { terminalSuspend: false })
   let disposeSlots: (() => void) | undefined
   return Effect.gen(function* () {
@@ -23,6 +25,12 @@ export function runTui(transport: { url: string; headers: RequestInit["headers"]
     )
     return yield* run({
       client: createOpencodeClient({ ...options, directory }),
+      reload: reload
+        ? async () => {
+            const next = await reload()
+            return createOpencodeClient({ baseUrl: next.url, headers: next.headers, directory })
+          }
+        : undefined,
       args: {},
       config,
       pluginHost: {

packages/cli/test/fixture/standalone-owner.ts

@@ -0,0 +1,15 @@
+import { Effect } from "effect"
+import path from "node:path"
+import { Standalone } from "../../src/services/standalone"
+
+process.argv[1] = path.join(import.meta.dir, "../../src/index.ts")
+
+await Effect.runPromise(
+  Effect.scoped(
+    Effect.gen(function* () {
+      const transport = yield* Standalone.transport()
+      console.log(`${transport.pid} ${transport.url}`)
+      return yield* Effect.never
+    }),
+  ),
+)

packages/cli/test/standalone.test.ts

@@ -0,0 +1,65 @@
+import { expect, test } from "bun:test"
+import path from "node:path"
+
+test("standalone server exits when its owner is killed", async () => {
+  const owner = Bun.spawn([process.execPath, path.join(import.meta.dir, "fixture/standalone-owner.ts")], {
+    cwd: path.join(import.meta.dir, ".."),
+    env: process.env,
+    stdin: "ignore",
+    stdout: "pipe",
+    stderr: "pipe",
+  })
+  const line = await Promise.race([readLine(owner.stdout), Bun.sleep(10_000).then(() => undefined)])
+  const [rawPID, url] = line?.split(" ") ?? []
+  const pid = Number(rawPID)
+
+  try {
+    expect(pid).toBeGreaterThan(0)
+    expect(url).toStartWith("http://127.0.0.1:")
+    expect(running(pid)).toBe(true)
+
+    owner.kill("SIGKILL")
+    await owner.exited
+
+    expect(await waitForExit(pid)).toBe(true)
+  } finally {
+    owner.kill("SIGKILL")
+    if (running(pid)) process.kill(pid, "SIGKILL")
+  }
+})
+
+async function readLine(stream: ReadableStream<Uint8Array>) {
+  const reader = stream.getReader()
+  const decoder = new TextDecoder()
+  const chunks: string[] = []
+  while (true) {
+    const result = await reader.read()
+    if (result.done) break
+    chunks.push(decoder.decode(result.value, { stream: true }))
+    const output = chunks.join("")
+    const newline = output.indexOf("\n")
+    if (newline !== -1) {
+      reader.releaseLock()
+      return output.slice(0, newline)
+    }
+  }
+  reader.releaseLock()
+  return chunks.join("") + decoder.decode()
+}
+
+async function waitForExit(pid: number, attempts = 100): Promise<boolean> {
+  if (!running(pid)) return true
+  if (attempts === 0) return false
+  await Bun.sleep(50)
+  return waitForExit(pid, attempts - 1)
+}
+
+function running(pid: number) {
+  if (!Number.isSafeInteger(pid) || pid <= 0) return false
+  try {
+    process.kill(pid, 0)
+    return true
+  } catch {
+    return false
+  }
+}