Neil 69839c253e feat(zcode): explain a ZCode build that has no terminal UI (#22730)
* feat(zcode): explain a ZCode build that has no terminal UI

ZCode ships one agent runtime behind two front ends. The desktop app bundles it
without `@zcode/tui`, because it draws its own window in Electron. Put that
bundle on PATH as `zcode` and it answers `--version`, runs `-p` headlessly, and
passes `zcode doctor` — so Orca detects it, launches it, and installs hooks
against it, all successfully. Only the interactive session fails, leaving a bare
Node stack trace in the pane that reads as a broken Orca integration.

Watch a freshly launched ZCode pane's first output and replace that with an
explanation: Orca's hooks are fine, this `zcode` just cannot open a session,
install one that ships the TUI.

The rule keys on Node's own module-resolution error rather than on the healthy
build's "TUI requires an interactive terminal." message, because ZCode localizes
the latter (`TUI 需要交互式终端。` in zh-CN) and matching it would miss every
non-English user. Node's error is not translated and names the package.

Scoped so it costs a healthy pane nothing: it runs only for a pane Orca launched
as `zcode`, and only over the first 8 KiB, because a module-resolution failure
happens before the runtime renders anything.

Evidence: `src/main/runtime/__fixtures__/zcode-missing-tui.txt`, a recorded PTY
capture of the desktop bundle refusing to start, per
docs/reference/agent-pty-transcript-capture.md.

Reported-by: JWu527

* refactor(zcode): ask the CLI if it can open a session instead of watching for the failure

The stream watcher this replaces never fired. Before/after screenshots were
identical and instrumentation showed the hook never ran, so the sidecar was
both misplaced and racing a failure that lands ~440ms after spawn.

Replace it with a direct question, answered once per run and cached.

Reading zai-org/ZCode shows why running it is the only way to ask, and why the
answer is unambiguous. `--version` and `doctor` are byte-identical in shape
between a build that has the terminal UI and one that does not, because the TUI
is only ever touched on the `tui` command path. There, `runTuiCommand` calls
`loadTuiRuntime()` before anything else, and `runTui` checks for a TTY only
after that module is already loaded. So with stdin at EOF:

  - no TUI  -> fails in the loader  -> Node's module-resolution error
  - has TUI -> loads, then declines -> "TUI requires an interactive terminal."

The module error is therefore present exactly when the terminal UI is absent.
All three shipping shapes land correctly: an npm/node-bundle install resolves
`@zcode/tui` as a real package (esbuild marks it external, so it is never
inlined), a SEA build always carries it as embedded assets, and the desktop
app's bundled runtime carries neither.

Verified against both real builds on this machine rather than a mock: the
desktop bundle answers `missing-tui`, a CLI built from source answers
`interactive`, and a command that does not exist answers `unknown` — the probe
fails open so an unrelated spawn failure never accuses a working CLI.

* feat(zcode): warn at launch when the installed zcode cannot open a session

Wires the capability probe to the one place a ZCode launch is first known:
terminal tab creation, which runs before the pane connects, so the explanation
reaches the screen alongside the failure rather than after it.

- main exposes the cached probe over `preflight:zcodeInteractiveCapability`,
  beside the other "what can the installed CLIs do" answers
- the web preload stub answers `unknown`, because a paired client has no
  business deciding anything about the host's CLI install
- the renderer notice is advisory: a probe that cannot run never blocks a launch

Verified in the running app against the real desktop bundle: creating a ZCode
workspace now shows "This ZCode build has no terminal UI" next to the stack
trace, where before the trace stood alone.
2026-09-25 02:28:40 -07:00
2026-05-04 20:42:03 -07:00
2026-03-16 22:27:51 -07:00
2026-03-28 10:19:14 -07:00

Orca Orca

GitHub stars Total downloads across all releases License: MIT Join the Orca Discord Follow Orca on X Supported platforms: macOS, Windows, and Linux

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The AI Orchestrator for 100x builders.
Run Codex, ClaudeCode, OpenCode or Pi side-by-side — each in its own worktree, tracked in one place.

Download Orca

Orca desktop app running agents in parallel worktrees, with the Orca mobile companion app in the corner

Features

Mobile Companion

Monitor and steer your agents from your phone — get notified when an agent finishes and send follow-ups from anywhere.

iOS App Store · TestFlight · Android APK 0.0.50 · Docs →

Orca desktop with the mobile companion app

Parallel Worktrees

Fan one prompt across five agents, each in its own isolated git worktree — compare the results and merge the winner.

Docs →

Parallel worktree orchestration

Terminal Splits

Ghostty-class terminals with WebGL rendering, infinite splits, and scrollback that survives restarts.

Docs →

Terminal splits

Design Mode

Click any UI element in a real Chromium window to send its HTML, CSS, and a cropped screenshot straight into your agent's prompt.

Docs →

Embedded browser and Design Mode

GitHub & Linear, Native

Browse PRs, issues, and project boards in-app — open a worktree from any task and review without a context switch.

Docs →

GitHub and Linear task workflows in Orca

SSH Worktrees

Run agents on a beefy remote box with full file editing, git, and terminals — auto-reconnect and port forwarding included.

Docs →

Remote worktrees over SSH

Annotate AI Diffs

Drop comments on any diff line and ship them back to the agent — review, edit, and commit without leaving Orca.

Docs →

Annotate AI-generated diffs

Drag Files to Agents

VS Code's editor with autosave everywhere — drag files or images straight into an agent prompt.

Docs →

Drag files and images into an agent prompt

Orca CLI

Agents drive Orca too — script every workflow with orca worktree create, snapshot, click, and fill.

Docs →

Script Orca from the CLI

Also in the box:

  • Quick open — Search across worktrees, files, agents, commands, and repo context without leaving your flow.
  • Account switcher & usage tracking — See Claude and Codex usage and rate-limit resets, and hot-swap accounts without re-logging in.
  • Rich repo previews — Preview Markdown, images, PDFs, and repo docs in the workspace.
  • Computer Use — Let agents operate desktop apps and visible UI when a workflow needs real interaction.
  • Notifications and unread state — Know when an agent finishes or needs attention, then mark threads unread to come back later.
  • And many, many more — we ship daily, so this list is perpetually behind. The changelog is the real feature list.

Supported Agents

Works with any CLI agent — if it runs in a terminal, it runs in Orca.

Claude Code logo Claude Code   Codex logo Codex   Grok logo Grok   Cursor logo Cursor   GitHub Copilot logo GitHub Copilot   Muse logo Muse   ZCode logo ZCode   OpenCode logo OpenCode   MiMo Code logo MiMo Code   Amp logo Amp   OpenClaude logo OpenClaude   Antigravity logo Antigravity   Pi logo Pi   oh-my-pi logo oh-my-pi   Hermes Agent logo Hermes Agent   Devin logo Devin   Goose logo Goose   Auggie logo Auggie   Autohand Code logo Autohand Code   Charm logo Charm   Cline logo Cline   Codebuff logo Codebuff   Command Code logo Command Code   Continue logo Continue   Droid logo Droid   Kilocode logo Kilocode   Kimi logo Kimi   Kiro logo Kiro   Mistral Vibe logo Mistral Vibe   Qwen Code logo Qwen Code   Rovo Dev logo Rovo Dev   + any CLI agent


Install

Desktop — macOS, Windows, Linux

Or via a package manager:

# macOS (Homebrew)
brew install --cask stablyai/orca/orca

# Arch Linux (AUR) — or stably-orca-git to build from source
yay -S stably-orca-bin

Mobile Companion — iOS, Android

Pair with your desktop app to monitor and steer your agents from your phone.


Community & Support

  • Discord: Join the community on Discord.

  • Twitter / X: Follow @orca_build for updates and announcements.

  • WeChat: Scan to join the Orca community WeChat group 10.

    WeChat group 10 QR code for the Orca community
  • Feedback & Ideas: We ship fast. Missing something? Request a new feature.

  • Privacy: See the privacy & telemetry docs for what anonymous usage data Orca collects and how to opt out.

  • Show Support: Star this repo to follow along with our daily ships.


Developing

Want to contribute or run locally? See our CONTRIBUTING.md guide.

The relay that pairs the mobile app with a desktop host is also in this repository under cloud/, with a separate pnpm workspace and setup guide.

Orca contributors

GitHub star history chart for stablyai/orca

Signed Builds

Windows code signing sponored/provided by SignPath.io, certificate by SignPath Foundation.

License

Orca is free and open source under the MIT License.

S
Description
Orca is the ADE for working with a fleet of parallel agents. Run any coding agent with your own subscription. Available on desktop, mobile and remote runtime.
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