Jinwoo-H
d4890a78bc
The OutputSpan gate is right for `terminal.subscribe` and wrong for
`terminal.multiplex`. Keying spans off a declared `outputSpan` capability treats
"peer did not declare it" as "peer cannot decode opcode 15", which is false on
multiplex: opcode 15 shipped in v1.4.147 (c0f0810dd9, 2026-07-19) and every
capability a peer could declare to prove it is younger — `ackOutput` by 9 days,
`ackOutputSourceRanges` by 10. So the gate read the entire installed base as
incapable and downgraded it.
The downgrade cannot be made safe there. A plain Output frame carries only
`(data, seq)`, so a seq-tracking peer reconstructs a run as `seq - data.length`,
which a transformed run (`rawLength !== data.length`) contradicts by definition.
Three failures reproduced through the real dispatcher against the shipped desktop
capability set:
- a zero-byte absorbed-query frame fails `TerminalSourceRangeLedger.canAccept`
(`encodedBytes > 0`), parks in `ackPendingOutput`, and head-blocks the flush
loop on the same head forever — all later output is lost;
- every transformed emission reads as a dropped-frame gap in `detectOutputGap`
and triggers `requestResyncSnapshot`;
- a >48 KiB transformed run takes the `shouldDelayFinalSeq` arm, which omits
`sourceRanges`, flipping the ledger's mapping mode and detaching the stream.
Multiplex now always frames transformed runs as OutputSpan; the vestigial
`outputSpan` capability is removed from the multiplex schema, stream state, and
the renderer's subscribe frame. Subscribe keeps the gate: mobile ignores Output
`seq` outright, which is what makes the downgrade lossless there — that property,
not the capability flag, is the licence, so the chunker option is now
`transformedRuns: 'span' | 'downgrade-to-text'` and the unsound call site cannot
be written by accident.
Coverage for the fallback arm was absent — every fixture was a 14-character
string, so the multi-chunk downgrade never ran and deleting a yield (48 KiB of
silently dropped output) passed everything. Adds over-cap, zero-byte and
per-frame-seq contracts plus a 600-case fuzz, transformed and multi-chunk
transformed steps to the cross-version journey (which pins current code against
the real v1.4.173 release client), and repairs the JS benchmark that the required
options argument broke.
Refs STA-3482
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 0.0.37
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 7.
-
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.
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.