Orca had to guess which shell would parse a queued command line, then emit syntax for it. Guessing is unreliable for a remote or WSL host, and every dialect-dependent function is a place to get it wrong. Replace the guess. Everything emitted for a Unix shell is now built to be correct in sh, bash, zsh, dash, ksh and fish alike, so no detection is needed: - quoteStartupArg emits backslashes as "\\" and apostrophes as "'" between single-quoted runs. Both families read that identically, unlike the sh '\'' idiom, which fish silently halves and which makes a trailing backslash a hard syntax error. - clearEnvCommand emits a self-contained fish/sh branch. It deliberately does NOT call a helper defined by Orca's shell wrappers: Orca wraps only zsh, bash and fish, so an `sh`/`dash`/`ksh` login shell launches unwrapped — and the same text is copied to the clipboard and pasted into shells Orca never spawned. In both, a helper would be `command not found`, which is the exact failure this exists to avoid. Two guarded statements rather than `A && B || C`, because fish's `set -e` returns non-zero for an already-unset variable and would fall through to the sh branch; a trailing `true` pins the status, since this is the last statement of a launch line and the prompt renders it. - One tokenizer for Unix. The input is a settings string the shell never parses, so parsing it per-shell only made the same setting mean different things in different workspaces. AgentStartupShell loses its 'fish' and 'unix' members, and the three login-shell resolvers, the fish tokenizer and the agentEnv.SHELL probe go with them. Per-worktree shell history now actually works: - zsh on macOS was a no-op. /etc/zshrc assigns HISTFILE unconditionally before any wrapper Orca controls, so the injected value was already gone — and with ZDOTDIR still pointing at Orca's wrapper dir, history landed inside it. The intended path rides ORCA_HISTFILE and is restored after user config. Fixes #11044. - fish keeps history in its own data dir keyed by session name, since it ignores HISTFILE and has no custom-directory knob. Files are deleted rather than truncated, a symlinked ~/.local/share no longer disables cleanup, and a GC sweep reclaims orphans whose meta.json is gone. The sweep refuses an empty live-worktree set (indistinguishable from a store that failed to hydrate) and skips files younger than GC_MIN_AGE_MS, mirroring the tree GC's guard against the live-set snapshot race. Verified against real shells rather than asserted as strings: startup-shell-portability.live-shell.test.ts runs 194 assertions across sh/bash/zsh/dash/ksh/fish, and zsh-scoped-histfile.live-shell.test.ts drives a real login zsh through /etc/zshrc. Both are vacuity-checked. The same quoting corpus was replayed byte-exact on Linux, where /bin/sh is dash.
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 0.0.43
Community & Support
-
Discord: Join the community on Discord.
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Twitter / X: Follow @orca_build for updates and announcements.
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WeChat: Scan to join the Orca community WeChat group 7.
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Feedback & Ideas: We ship fast. Missing something? Request a new feature.
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Privacy: See the privacy & telemetry docs for what anonymous usage data Orca collects and how to opt out.
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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.










