Jinwoo Hong
0e7948fa6d
* feat(relay): pace the drain send during a same-cap cell roll A same-cap roll drains a cell with graceMs 0, which sends `drain` to all ~800 controls in one pass. Every desktop re-dials on receipt regardless of graceMs, so the whole cell reconnects inside a second. On 2026-09-16 that stampede hit a Cloud SQL stall: attaches timed out, each leaving 10 minutes of late-arrival debt on connection headroom, and placement answered relay_capacity_exhausted fleet-wide for ~13 minutes. Spreading the sends spreads the re-dials. `HostSessionRegistry.drain` takes an optional pacing window and schedules each session's send evenly across it; admission is fenced for every session up front, and each host keeps its own full grace after its own send. /v1/admin/drain accepts `paceWindowMs` (<= 5 min) and echoes what it applied. The same-cap job asks for 120 s, and the drain-completion wait grew by the same amount. A cell still on an older image rejects the field, so the deploy script falls back to an unpaced drain rather than failing the roll. * fix(relay): scope the drain fence to the hosts already told Review of the paced drain found two problems, both from treating "this cell is draining" as one instant when pacing makes it a window. Timers: the sends queued by a paced drain were neither cleared when a later drain superseded them nor unref'd. A SIGTERM mid-window left up to 800 no-op timers holding the event loop open until systemd escalated to SIGKILL. Drain timers are now tracked, cleared on the next drain, and unref'd, so a retry re-arms a session's teardown instead of stacking a second one. Phones: the client fence read the global draining flag, so every phone was refused for the whole window even though its own host had not been told yet and was still serving. The director keeps pointing phones at this cell until their host moves, so they would have looped for up to two minutes. A session is now fenced when its drain is sent, not when the drain starts, and the client paths key off that. New control connections and re-attaches stay fenced globally: nothing new should land on a cell that is going away.
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
Mobile CompanionMonitor and steer your agents from your phone — get notified when an agent finishes and send follow-ups from anywhere. |
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Parallel WorktreesFan one prompt across five agents, each in its own isolated git worktree — compare the results and merge the winner. |
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Terminal SplitsGhostty-class terminals with WebGL rendering, infinite splits, and scrollback that survives restarts. |
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Design ModeClick any UI element in a real Chromium window to send its HTML, CSS, and a cropped screenshot straight into your agent's prompt. |
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GitHub & Linear, NativeBrowse PRs, issues, and project boards in-app — open a worktree from any task and review without a context switch. |
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SSH WorktreesRun agents on a beefy remote box with full file editing, git, and terminals — auto-reconnect and port forwarding included. |
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Annotate AI DiffsDrop comments on any diff line and ship them back to the agent — review, edit, and commit without leaving Orca. |
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Drag Files to AgentsVS Code's editor with autosave everywhere — drag files or images straight into an agent prompt. |
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Orca CLIAgents drive Orca too — script every workflow with |
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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 0.0.48 · Install guide
Community & Support
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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 8. Group 8 may be full; if so, scan the Group 9 QR code instead.
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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.
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.