feat(tui): add v2 terminal interface

packages/cli/AGENTS.md

@@ -0,0 +1,82 @@
+# V2 CLI and TUI development guide
+
+## Migration context
+
+- The TUI is being ported from legacy APIs to the new V2 APIs. New and migrated TUI behavior should use `sdk.client.v2` and the location-scoped data in `packages/tui/src/context/data.tsx` instead of adding dependencies on legacy sync state.
+- Preserve established TUI behavior unless the task intentionally changes it. When behavior, copy, keyboard interaction, or layout is unclear, compare the local V2 TUI with the latest released legacy TUI.
+- Run both versions in separate Terminal Control sessions and save PNG-only captures at equivalent states:
+
+```bash
+# From packages/cli: local V2 TUI
+termctrl start opencode-v2-dev --host opentui --cols 112 --rows 34 -- bun dev --standalone
+
+# Released legacy TUI behavior reference
+termctrl start opencode-legacy --host opentui --cols 112 --rows 34 -- bunx opencode-ai@latest
+
+termctrl save opencode-v2-dev --format png --out /tmp/opencode/v2.png
+termctrl save opencode-legacy --format png --out /tmp/opencode/legacy.png
+```
+
+- Use the same viewport and send equivalent inputs to both sessions before comparing screenshots. The released CLI is a behavioral reference, not a source of V2 API design; keep the local implementation on V2 endpoints.
+- Stop both sessions after comparison: `termctrl stop opencode-v2-dev` and `termctrl stop opencode-legacy`.
+
+## Interactive debugging
+
+- This package is the V2 CLI adapter. Run its `dev` script when testing the TUI; do not use the repository-root `bun dev`, which launches the legacy `packages/opencode` CLI.
+- Run commands from `packages/cli`. Use `bun dev --standalone` for most debugging so the TUI starts with a private V2 server instead of depending on the background service.
+- Use `termctrl` for interactive checks instead of starting the TUI as a blocking foreground process. It provides a real PTY, handles OpenTUI's host handshake, and can save reviewable screenshots.
+- Use a dedicated session name and do not reuse or kill an unrelated session.
+
+```bash
+termctrl start opencode-v2-dev --host opentui --cols 112 --rows 34 -- bun dev --standalone
+termctrl wait opencode-v2-dev "Ask anything" --timeout 20000
+termctrl show opencode-v2-dev
+```
+
+- Wait for visible text before interacting instead of relying on fixed sleeps. Use the text expected from the screen under test, such as `Ask anything` or `Connect a provider`.
+- Drive the running TUI with `termctrl send`. Prefix typed input with `text:` and send control keys separately so the interaction matches real terminal input.
+
+```bash
+termctrl send opencode-v2-dev 'text:example prompt' enter
+termctrl send opencode-v2-dev ctrl-c
+```
+
+- Use `termctrl show` after each meaningful interaction and inspect the full visible screen for rendering errors, stale state, error toasts, and unexpected exits.
+- Save PNG evidence for every user-visible bug and fix. Do not save text captures; inspect the rendered PNG. Write temporary captures outside the repository unless the artifact is intended to be committed.
+
+```bash
+termctrl save opencode-v2-dev --format png --out /tmp/opencode/v2-tui.png
+```
+
+- For resize-sensitive changes, resize the viewport, wait for the expected content, and capture the screen again:
+
+```bash
+termctrl resize opencode-v2-dev --cols 100 --rows 30
+termctrl show opencode-v2-dev
+```
+
+- Source changes may require restarting the process. Use `termctrl restart opencode-v2-dev` rather than assuming the running TUI reloaded the change.
+- To exercise background-service behavior, omit `--standalone`. Service lifecycle commands are available through `bun dev service start`, `bun dev service status`, and `bun dev service stop`.
+- Always clean up the Terminal Control session when the check is complete:
+
+```bash
+termctrl stop opencode-v2-dev
+```
+
+## Debugger
+
+- To debug the V2 CLI or TUI with Bun's inspector, launch the CLI entrypoint through Terminal Control with an inspector URL, then attach a debugger to that URL:
+
+```bash
+termctrl start opencode-v2-debug --host opentui --cols 112 --rows 34 -- \
+  bun run --inspect=ws://localhost:6499/ src/index.ts --standalone
+```
+
+- Use `--inspect-wait` or `--inspect-brk` when execution must pause until the debugger attaches.
+- Use `termctrl logs opencode-v2-debug` for inspector output or startup failures emitted before the TUI renderer starts. Use `termctrl show` for the visible full-screen TUI.
+
+## Verification
+
+- Run `bun typecheck` from `packages/cli` after CLI adapter changes.
+- Run `bun typecheck` and `bun test` from `packages/tui` after shared TUI changes. Do not run tests from the repository root.
+- Treat automated checks and Terminal Control smoke tests as complementary. For user-visible changes, verify initial render, the changed interaction, Ctrl-C exit behavior, and save a screenshot of the corrected state.

packages/cli/bin/opencode2.cjs

@@ -31,11 +31,11 @@ function run(target) {
 
 const envPath = process.env.OPENCODE_BIN_PATH
 const scriptDir = path.dirname(fs.realpathSync(__filename))
-const cached = path.join(scriptDir, ".lildax")
+const cached = path.join(scriptDir, ".opencode2")
 const platform = { darwin: "darwin", linux: "linux", win32: "windows" }[os.platform()] || os.platform()
 const arch = { x64: "x64", arm64: "arm64", arm: "arm" }[os.arch()] || os.arch()
 const base = "@opencode-ai/cli-" + platform + "-" + arch
-const binary = platform === "windows" ? "lildax.exe" : "lildax"
+const binary = platform === "windows" ? "opencode2.exe" : "opencode2"
 
 function supportsAvx2() {
   if (arch !== "x64") return false
@@ -121,7 +121,7 @@ function findBinary(startDir) {
 const resolved = envPath || (fs.existsSync(cached) ? cached : findBinary(scriptDir))
 if (!resolved) {
   console.error(
-    "It seems that your package manager failed to install the right lildax CLI package. Try manually installing " +
+    "It seems that your package manager failed to install the right opencode2 CLI package. Try manually installing " +
       names.map((name) => `"${name}"`).join(" or ") +
       " package",
   )

packages/cli/package.json

@@ -5,7 +5,7 @@
   "type": "module",
   "license": "MIT",
   "bin": {
-    "lildax": "./bin/lildax.cjs"
+    "opencode2": "./bin/opencode2.cjs"
   },
   "files": [
     "bin"

packages/cli/script/build.ts

@@ -10,7 +10,7 @@ import pkg from "../package.json"
 import { modelsData } from "./generate"
 
 const dir = path.resolve(import.meta.dirname, "..")
-const binary = "lildax"
+const binary = "opencode2"
 process.chdir(dir)
 
 await rm("dist", { recursive: true, force: true })

packages/cli/script/publish.ts

@@ -27,12 +27,12 @@ console.log("binaries", binaries)
 const version = Object.values(binaries)[0]
 
 await $`mkdir -p ./dist/${pkg.name}/bin`
-await $`cp ./bin/lildax.cjs ./dist/${pkg.name}/bin/lildax`
+await $`cp ./bin/opencode2.cjs ./dist/${pkg.name}/bin/opencode2`
 await Bun.file(`./dist/${pkg.name}/package.json`).write(
   JSON.stringify(
     {
       name: pkg.name,
-      bin: { lildax: "./bin/lildax" },
+      bin: { opencode2: "./bin/opencode2" },
       version,
       license: pkg.license,
       repository: { type: "git", url: "git+https://github.com/anomalyco/opencode.git" },

packages/cli/src/commands/commands.ts

@@ -5,6 +5,16 @@ declare const OPENCODE_CLI_NAME: string | undefined
 
 export const Commands = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCODE_CLI_NAME : "opencode", {
   description: "OpenCode 2.0 preview command line interface",
+  params: {
+    directory: Argument.string("directory").pipe(
+      Argument.withDescription("Directory to start OpenCode in"),
+      Argument.optional,
+    ),
+    standalone: Flag.boolean("standalone").pipe(
+      Flag.withDescription("Run with a private server instead of the background service"),
+      Flag.withDefault(false),
+    ),
+  },
   commands: [
     Spec.make("api", {
       description: "Make a request to the running server",
@@ -46,6 +56,7 @@ export const Commands = Spec.make(typeof OPENCODE_CLI_NAME === "string" ? OPENCO
         hostname: Flag.string("hostname").pipe(Flag.withDefault("127.0.0.1")),
         port: Flag.integer("port").pipe(Flag.optional),
         register: Flag.boolean("register").pipe(Flag.withDefault(false)),
+        stdio: Flag.boolean("stdio").pipe(Flag.withDefault(false)),
       },
     }),
   ],

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

@@ -1,12 +1,15 @@
 import { Commands } from "../commands"
 import { Runtime } from "../../framework/runtime"
-import { Effect } from "effect"
+import { Effect, Option } from "effect"
 import { Daemon } from "../../services/daemon"
+import { Standalone } from "../../services/standalone"
 
-export default Runtime.handler(Commands, () =>
+export default Runtime.handler(Commands, (input) =>
   Effect.gen(function* () {
+    const directory = Option.getOrUndefined(input.directory)
+    if (directory !== undefined) process.chdir(directory)
     const daemon = yield* Daemon.Service
-    const transport = yield* daemon.transport()
+    const transport = yield* (input.standalone ? Standalone.transport() : daemon.transport())
     const { runTui } = yield* Effect.promise(() => import("../../tui"))
     yield* runTui(transport)
   }),

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

@@ -6,6 +6,8 @@ import * as Effect from "effect/Effect"
 import { HttpRouter, HttpServer } from "effect/unstable/http"
 import { createServer } from "node:http"
 import { createRoutes } from "@opencode-ai/server/routes"
+import { ServerAuth } from "@opencode-ai/server/auth"
+import { createOpencodeClient } from "@opencode-ai/sdk/v2/client"
 import { Commands } from "../commands"
 import { Runtime } from "../../framework/runtime"
 import { Daemon } from "../../services/daemon"
@@ -16,11 +18,22 @@ export default Runtime.handler(
     return yield* Effect.scoped(
       Effect.gen(function* () {
         const daemon = yield* Daemon.Service
-        const address = yield* listen(input.hostname, input.port, yield* daemon.password())
+        const standalonePassword = process.env.OPENCODE_SERVER_PASSWORD
+        if (input.stdio) delete process.env.OPENCODE_SERVER_PASSWORD
+        const password = input.stdio ? standalonePassword : yield* daemon.password()
+        if (!password) return yield* Effect.fail(new Error("Missing server password"))
+        const address = yield* listen(input.hostname, input.port, password)
+        yield* Effect.tryPromise(() =>
+          createOpencodeClient({
+            baseUrl: HttpServer.formatAddress(address),
+            headers: ServerAuth.headers({ password }),
+          }).v2.location.get(undefined, { throwOnError: true }),
+        )
         if (input.register) yield* daemon.register(address)
-        console.log(`server listening on ${HttpServer.formatAddress(address)}`)
+        const url = HttpServer.formatAddress(address)
+        console.log(input.stdio ? JSON.stringify({ url }) : `server listening on ${url}`)
         return yield* Effect.never
-      }),
+      }).pipe(Effect.annotateLogs({ role: "server" })),
     )
   }),
 )
@@ -35,11 +48,15 @@ function listen(hostname: string, port: Option.Option<number>, password: string)
 }
 
 function bind(hostname: string, port: number, password: string) {
+  const server = createServer()
   return Layer.build(
     HttpRouter.serve(createRoutes(password), { disableListenLog: true, disableLogger: true }).pipe(
-      Layer.provideMerge(NodeHttpServer.layer(() => createServer(), { port, host: hostname })),
+      Layer.provideMerge(NodeHttpServer.layer(() => server, { port, host: hostname })),
       Layer.provide(Credential.defaultLayer),
       Layer.provide(PermissionSaved.defaultLayer),
     ),
-  ).pipe(Effect.map((context) => Context.get(context, HttpServer.HttpServer).address))
+  ).pipe(
+    Effect.tap(() => Effect.addFinalizer(() => Effect.sync(() => server.closeAllConnections()))),
+    Effect.map((context) => Context.get(context, HttpServer.HttpServer).address),
+  )
 }

packages/cli/src/commands/handlers/service/status.ts

@@ -8,6 +8,6 @@ export default Runtime.handler(
   Commands.commands.service.commands.status,
   Effect.fn("cli.service.status")(function* () {
     const url = yield* (yield* Daemon.Service).status()
-    process.stdout.write((url ? `running ${url}` : "stopped") + EOL)
+    process.stdout.write((url ? url : "stopped") + EOL)
   }),
 )

packages/cli/src/framework/runtime.ts

@@ -2,6 +2,7 @@ import * as Effect from "effect/Effect"
 import * as Command from "effect/unstable/cli/Command"
 import { Spec } from "./spec"
 import { Daemon } from "../services/daemon"
+import { Scope } from "effect"
 
 export type Input<Value> =
   Value extends Spec.Node<infer _Name, infer Command, infer _Commands>
@@ -10,11 +11,11 @@ export type Input<Value> =
       ? Input
       : never
 
-type RuntimeHandler = (input: unknown) => Effect.Effect<void, unknown, Daemon.Service>
+type RuntimeHandler = (input: unknown) => Effect.Effect<void, unknown, Daemon.Service | Scope.Scope>
 type Loader<Node extends Spec.Any> = () => Promise<{
-  default: (input: Input<Node>) => Effect.Effect<void, any, Daemon.Service>
+  default: (input: Input<Node>) => Effect.Effect<void, any, Daemon.Service | Scope.Scope>
 }>
-type ProvidedCommand = Command.Command<string, unknown, unknown, unknown, Daemon.Service>
+type ProvidedCommand = Command.Command<string, unknown, unknown, unknown, Daemon.Service | Scope.Scope>
 
 export type Handlers<Node extends Spec.Any> = keyof Node["commands"] extends never
   ? Loader<Node>

packages/cli/src/index.ts

@@ -2,10 +2,19 @@
 
 import * as NodeRuntime from "@effect/platform-node/NodeRuntime"
 import * as NodeServices from "@effect/platform-node/NodeServices"
+import { NodeFileSystem } from "@effect/platform-node"
 import * as Effect from "effect/Effect"
+import { Layer, Logger, References } from "effect"
 import { Commands } from "./commands/commands"
 import { Runtime } from "./framework/runtime"
 import { Daemon } from "./services/daemon"
+import { Logging } from "@opencode-ai/core/observability/logging"
+
+const LoggingLayer = Logger.layer(Logging.loggers(), { mergeWithExisting: false }).pipe(
+  Layer.provide(NodeFileSystem.layer),
+  Layer.orDie,
+  Layer.merge(Layer.succeed(References.MinimumLogLevel, Logging.minimumLogLevel())),
+)
 
 const Handlers = Runtime.handlers(Commands, {
   $: () => import("./commands/handlers/default"),
@@ -25,8 +34,11 @@ const Handlers = Runtime.handlers(Commands, {
 })
 
 Runtime.run(Commands, Handlers, { version: "local" }).pipe(
+  Effect.annotateLogs({ role: "cli" }),
   Effect.provide(Daemon.defaultLayer),
+  Effect.provide(LoggingLayer),
   Effect.provide(NodeServices.layer),
   Effect.scoped,
+  Effect.tap(() => Effect.sync(() => process.exit(0))),
   NodeRuntime.runMain,
 )

packages/cli/src/services/daemon.ts

@@ -28,6 +28,10 @@ const Registration = Schema.Struct({
 })
 type Registration = typeof Registration.Type
 
+const Config = Schema.Struct({
+  password: Schema.optional(Schema.String),
+})
+
 function sameRegistration(left: Registration, right: Registration) {
   return left.id === right.id && left.version === right.version && left.url === right.url && left.pid === right.pid
 }
@@ -38,21 +42,29 @@ export const layer = Layer.effect(
     const fs = yield* FileSystem.FileSystem
     const directory = Global.Path.state
     const file = path.join(directory, "server.json")
-    const passwordFile = path.join(directory, "password")
+    const configFile = path.join(Global.Path.config, "service.json")
+    const legacyPasswordFile = path.join(directory, "password")
     const decodeRegistration = Schema.decodeUnknownEffect(Schema.fromJsonString(Registration))
+    const decodeConfig = Schema.decodeUnknownEffect(Schema.fromJsonString(Config))
 
     const password = Effect.fn("cli.daemon.password")(function* (value?: string) {
-      const existing = yield* fs.readFileString(passwordFile).pipe(Effect.catch(() => Effect.succeed(undefined)))
-      if (value === undefined && existing) return existing
+      const config = yield* fs
+        .readFileString(configFile)
+        .pipe(Effect.flatMap(decodeConfig), Effect.catch(() => Effect.succeed(undefined)))
+      if (value === undefined && config?.password) return config.password
+
+      const legacy = yield* fs
+        .readFileString(legacyPasswordFile)
+        .pipe(Effect.catch(() => Effect.succeed(undefined)))
+      const next = value ?? legacy ?? randomBytes(32).toString("base64url")
 
       // Keep one private credential across server restarts so discovered clients
       // can reconnect without exposing a password flag or environment variable.
-      const generated = value ?? randomBytes(32).toString("base64url")
-      const temp = passwordFile + ".tmp"
-      yield* fs.makeDirectory(directory, { recursive: true })
-      yield* fs.writeFileString(temp, generated, { mode: 0o600 })
-      yield* fs.rename(temp, passwordFile)
-      return generated
+      const temp = configFile + ".tmp"
+      yield* fs.writeFileString(temp, JSON.stringify({ password: next }, null, 2) + "\n", { mode: 0o600 })
+      yield* fs.rename(temp, configFile)
+      if (legacy) yield* fs.remove(legacyPasswordFile).pipe(Effect.ignore)
+      return next
     })
 
     const registration = Effect.fnUntraced(function* () {
@@ -111,7 +123,7 @@ export const layer = Layer.effect(
       const existing = yield* healthy().pipe(Effect.option)
       const found = Option.getOrUndefined(existing)
       const compiled = path.basename(process.execPath).replace(/\.exe$/, "") !== "bun"
-      if (found?.version === InstallationVersion && compiled) return found.url
+      if (found?.version === InstallationVersion) return found.url
       if (found) yield* stopProcess(found).pipe(Effect.ignore)
 
       const entrypoint = compiled ? undefined : process.argv[1]

packages/cli/src/services/standalone.ts

@@ -0,0 +1,38 @@
+import { ServerAuth } from "@opencode-ai/server/auth"
+import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
+import { Effect, Schema, Stream } from "effect"
+import { ChildProcess, ChildProcessSpawner } from "effect/unstable/process"
+import { randomBytes } from "node:crypto"
+import path from "node:path"
+
+const Ready = Schema.Struct({ url: Schema.String })
+const decodeReady = Schema.decodeUnknownPromise(Schema.fromJsonString(Ready))
+
+function command(password: string) {
+  const compiled = path.basename(process.execPath).replace(/\.exe$/, "") !== "bun"
+  const entrypoint = compiled ? [] : process.argv[1] ? [process.argv[1]] : []
+  if (!compiled && entrypoint.length === 0) throw new Error("Failed to resolve CLI entrypoint")
+  return ChildProcess.make(process.execPath, [...entrypoint, "serve", "--stdio", "--port", "0"], {
+    cwd: process.cwd(),
+    env: { OPENCODE_SERVER_PASSWORD: password },
+    extendEnv: true,
+    stdin: "ignore",
+    stderr: "ignore",
+    killSignal: "SIGKILL",
+  })
+}
+
+export const transport = Effect.fn("cli.standalone.transport")(
+  function* () {
+    const password = randomBytes(32).toString("base64url")
+    const spawner = yield* ChildProcessSpawner.ChildProcessSpawner
+    const proc = yield* spawner.spawn(command(password))
+    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 }) }
+  },
+  Effect.provide(CrossSpawnSpawner.defaultLayer),
+)
+
+export * as Standalone from "./standalone"

packages/cli/src/tui.ts

@@ -2,18 +2,42 @@ import { run } from "@opencode-ai/tui"
 import { TuiConfig } from "@opencode-ai/tui/config"
 import { Effect } from "effect"
 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"] }) {
   const config = TuiConfig.resolve({}, { terminalSuspend: false })
-  return run({
-    ...transport,
-    args: {},
-    config,
-    fetch: gracefulFetch,
-    pluginHost: {
-      async start() {},
-      async dispose() {},
-    },
+  let disposeSlots: (() => void) | undefined
+  return Effect.gen(function* () {
+    const client = createOpencodeClient({ baseUrl: transport.url, headers: transport.headers, fetch: gracefulFetch })
+    // The long-lived server may have started from a different directory than this CLI.
+    // Probe the client cwd on the server before making it the TUI's default location.
+    const directory = yield* Effect.tryPromise(() =>
+      client.v2.fs.list({ location: { directory: process.cwd() } }, { throwOnError: true }),
+    ).pipe(
+      Effect.map((response) => response.data.location.directory),
+      Effect.catch(() =>
+        // A client path may not exist on a remote server, so preserve the server's own default in that case.
+        Effect.tryPromise(() => client.v2.location.get(undefined, { throwOnError: true })).pipe(
+          Effect.map((response) => response.data.directory),
+        ),
+      ),
+    )
+    return yield* run({
+      ...transport,
+      directory,
+      args: {},
+      config,
+      fetch: gracefulFetch,
+      pluginHost: {
+        async start(input) {
+          disposeSlots = await loadBuiltinPlugins(input.api, input.runtime)
+        },
+        async dispose() {
+          disposeSlots?.()
+        },
+      },
+    })
   }).pipe(Effect.provide(Global.defaultLayer))
 }