#18304 decided enumerability after `lsof` runs, keying on stderr, non-numeric output, and an abnormal exit. One failure carries none of those signals: probing as a uid that does not own the socket's holder, `lsof -t -a -U <path>` exits 1 with no stdout and no stderr. Measured on Debian 12 against #18304's own probe, a live relay owned by root probed as `nobody`: probe uid path marker pids merged nobody held.sock lsof [] <- live relay holds it merged nobody stale.sock lsof [] <- genuinely nobody merged root held.sock lsof [10] merged root stale.sock lsof [] The first two rows are byte-identical, so nothing about lsof's answer can separate them. The first reaches `verdict: exited / evidence: no-holder`, which `classifySupersededRelay` maps to `stale-endpoint-removed` and `rm -f` on an inode a live relay is still holding. `hidepid=2` produces the same shape. A positive control does not solve this. Controlling on something the probe itself holds passes precisely when we are blind: as `nobody`, `lsof -t -p $$` returns a pid while the socket query returns nothing. Blindness is to *other* uids, and another uid's process is not ours to manufacture. /proc/net/unix is. It is world-readable and lists every bound unix socket regardless of owner, so an entry for the path alongside no reported pid proves lsof was blind rather than that the path is free. Only an otherwise-clean empty answer is corroborated; a reported pid still stands on its own, and the check is skipped when the answer was already unavailable. Same run, with this change: fixed nobody held.sock unavailable [] <- no longer reapable fixed nobody stale.sock lsof [] <- still reapable fixed root held.sock lsof [10] <- unchanged fixed root stale.sock lsof [] <- unchanged The marker can only ever move from `lsof` toward `unavailable`, so this never authorises an unlink that #18304 refuses. Off Linux there is no /proc/net/unix, the check returns false, and behaviour is exactly as before -- deliberately, because defaulting to `unavailable` there would stop every macOS host from reaping a stale endpoint and trade a rare destructive bug for a universal accumulation one. The tests are Linux-gated for the same reason, with an assertion that the evidence they depend on is actually present so the block cannot pass vacuously.
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 0.0.48 · 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.












