The production controller never installed `writeWithSettlement`, so every mailbox
pointer write took the fire-and-forget fallback and provider settlement never
controlled the pointer transition (R3-C2). Making the method required is what
turns that into a compile error, so `IPtyProvider.writeWithSettlement` is now
non-optional and `LocalPtyProvider` implements it synchronously: in-process
node-pty is its own sole owner, so its answer is the settlement.
Required-ness alone is satisfiable by a lie. `degraded-daemon-pty-provider` used
to answer it with `provider.write(...) !== false`, which reproduces the bug
through the fix, so its conditional is deleted outright and it delegates.
`RuntimePtyController.writeWithSettlement` stays optional: 809 `setPtyController`
call sites across 164 files construct partial controllers, and requiring it there
would be a mechanical edit of all of them for no added fence. Instead the
orchestration pointer path demands the narrow settled-writer shape and returns
`refused{provider_cannot_settle}` before any effect when it is absent.
Two gates, both red against the fabricated handoff:
- `registerPtyHandlers` with a real controller and a provider lacking settlement
refuses before any byte reaches `provider.write`.
- A census pins the five production `IPtyProvider` classes, proves each instance
exposes the writer, and reads every declaring body to reject a settlement
synthesized from `.write(`.
Orca
中文 · 日本語 · 한국어 · Español · Français · Português
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 0.0.47 · 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 8. Group 8 may be full; if so, scan the Group 9 QR code instead.
-
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.
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.












