On Windows every shell except cmd.exe installs the Codex launch preflight as a
deferred wrapper around the `codex` command, so it costs nothing at shell start.
cmd.exe has no equivalent, so the preflight was spliced into its `/K` startup
chain ahead of the agent command:
cmd.exe /K "chcp 65001 > nul & if defined ORCA_CODEX_LAUNCH_PREFLIGHT
call %..%%ORCA_CODEX_LAUNCH_PREFLIGHT%%..% agent hooks
prepare-codex > nul 2>&1 & <agent command>"
That `call` runs the Orca CLI, which connects back into the running app over
IPC. Measured in-app it took 10.4s under spawn-time load (0.19s standalone), so
the agent could not start until it returned — pushing the tab-bar "+" launch
past its startup budget and failing intermittently. It also ran for every
cmd.exe pane, including plain terminals with no agent and no startup command.
The work itself is `codexHookService.install()` into a managed Codex home that
the main process already knows: local, idempotent, sub-millisecond. Do it in
buildPtyHostEnv where the preflight env is resolved, and drop the inline cmd
call and the ORCA_CODEX_LAUNCH_PREFLIGHT_CMD_QUOTE argv-quoting workaround it
needed. The deferred wrappers on POSIX/PowerShell/Git Bash are unchanged and
still cover a `codex` typed later in an already-open pane.
Orca
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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
Features
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
Codex
Grok
Cursor
GitHub Copilot
OpenCode
MiMo Code
Amp
OpenClaude
Antigravity
Pi
oh-my-pi
Hermes Agent
Devin
Goose
Auggie
Autohand Code
Charm
Cline
Codebuff
Command Code
Continue
Droid
Kilocode
Kimi
Kiro
Mistral Vibe
Qwen Code
Rovo Dev
+ any CLI agent
Install
Desktop — macOS, Windows, Linux
- Download from onOrca.dev
- Or grab a build directly: macOS Apple Silicon · macOS Intel · Windows (.exe) · Linux AppImage · All builds
- Running
orca serveon a headless Linux server? See the headless Linux server guide.
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.
- iOS: Download on the App Store or join TestFlight
- Android: Download APK 0.0.44 · Install guide
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 7. If it is full, use group 8.
-
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.
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.












