The SSH PTY provider retained per-PTY state keyed by ids the remote host supplies, with no ceiling on how many distinct ids it would hold: - Renderer flow-control credit accumulated one state per relay id, and one segment per delivered chunk within each state. - The live PTY roster accumulated one row per app PTY id, including tombstones for exits, so repeated missed exits grew it without bound. - Relay ids and delivery tokens were retained at whatever length arrived. A remote host cycling ids — or a connection that repeatedly misses exit notifications — could grow main-process memory indefinitely. This adds a shared wire-admission check (ids and delivery tokens screened for length in UTF-8 bytes and unsafe characters before anything retains them), plus ceilings on credit states, credit segments per state and in aggregate, roster entries, and aggregate retained id bytes. Bounding flow-control credit is the risky part: silently dropping credit would stall the producer and freeze a terminal rather than crash it. Eviction therefore returns any outstanding credit upstream, so the remote resumes sending. Roster eviction prefers exited entries over live ones, so a live PTY is only displaced when the roster is genuinely full of live sessions. PTY notification routing moves onto the provider's own subscriber, which also screens ids at ingress rather than after mapping them. Tests: verified by mutation. Making eviction drop outstanding credit instead of returning it fails 2 tests; disabling the state cap fails 3; disabling the segment cap fails 1; making roster eviction ignore liveness fails 1; and removing the subscriber's ingress id check fails 4. Full main-process PTY surface (2,765 tests across providers, daemon, and ssh) passes.
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 0.0.32
Community & Support
-
Discord: Join the community on Discord.
-
Twitter / X: Follow @orca_build for updates and announcements.
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WeChat: All other groups are full, now we're on group 5.
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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.










