Jinwoo Hong
a35451f5b9
* fix(relay): stop self-closing the control socket on unknown messages
The desktop control client tore its own relay control WebSocket down with
code 4401 "unknown control message" for any well-formed control frame it
did not recognize. handleMessage() funneled everything that was not
ping / conn-open / drain / a tracked request reply into
failProtocol('unknown control message'), which closes the socket and
orphans the origin.
Three real frames hit that branch:
- A relay reply that arrives after the desktop's 10s request deadline
already deleted the pending entry. Relay control operations run DB
transactions that can exceed 10s under load, so resolveMessage() finds
no waiter and returns false.
- A control-error carrying no reqId (or an unknown one), including the
relay's own 'unknown_control_message' reply to a host command it could
not route.
- A newer relay's opcode that this build predates.
Fleet telemetry shows ~15 of these closes per day across app versions
1.4.175..1.4.197, so it is version-agnostic. The self-close was also far
more costly than the message that caused it: the relay session dropped to
'orphaned' and answered the phone with HOST_OFFLINE (4404) for the orphan
grace window, then the desktop had to re-register through the director's
503 reconnect throttle, stretching a single stray frame into minutes of
mobile downtime.
Per docs/reference/remote-wire-compatibility.md Rule 2, an unknown but
well-formed control frame must be dropped, not treated as fatal. Log and
ignore it; malformed JSON, binary frames, and messages before activation
still close as protocol violations.
Adds unit tests for the unknown-opcode drop, the timed-out-reply drop,
and the preserved malformed-frame teardown.
* docs(relay): correct the ignore rationale, drop the Rule 2 misattribution
Rule 2 of remote-wire-compatibility governs the SENDER of a new terminal-
stream opcode and treats the receiver's silent drop as a hazard, not a
mandate. Reframe the comment around the actual justification: the decoder
convention of dropping unknown frames, the control channel's lack of an
opcode negotiation step, and the incident cost asymmetry.
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 0.0.47 · 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.
-
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.