When a remote terminal tab is hidden the host stops sending its output and discards what it queued, so the only way to recover the gap on reveal is to ask the host to serialize its buffer. That request answered with an ambiguous empty result for several unrelated situations, so the client inferred loss from elapsed time using budgets sized for local IPC (4 nulls in ~150ms, a 750ms deadline). Over a network that guess was routinely wrong: users saw "[Orca skipped hidden terminal output because main recovery was unavailable.]" on a healthy pane and got a permanent hole in scrollback — worst exactly when an agent was streaming heavily, i.e. when there was the most to lose. There is no provable-absence case. A pane with genuinely no retained output returns a SUCCESSFUL snapshot whose data is empty, because the host serialized fine and found it empty. The real defect was that when no serializer answered at all, the host sent an untagged empty reply — reporting an unprovable failure as proven emptiness. Everything the host merely could not do right now is retry-worthy. The host now states why a snapshot is unavailable through a strictly additive `unavailable` field on the snapshot frame, so mixed client/host versions keep working in both directions and old clients see a byte-identical frame on the success path. The client acts on the reason: a snapshot, even an empty one, is success with no banner; retry-worthy retries and is bounded by reported-outcome count (7 attempts) rather than by elapsed time, then banners; permanently-unavailable banners immediately after one request with no re-arm; an untagged reply latches the pane as legacy and falls back to the existing timer heuristic, which is retained for exactly that purpose. Local panes are unchanged — a null local snapshot is still an authoritative answer. Separately, the self-heal repaint discards the buffer and replays a snapshot, which repositions the viewport. It no longer runs while the user is scrolled back reading: it registers a one-shot waiter and repaints when the terminal returns to following output, so the heal is deferred rather than dropped. Closes STA-3457.
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 0.0.37
Community & Support
-
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 7.
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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.










