Neil
1236ba11fb
Three ways a line could be trusted by us and invisible to the user's own ssh — or, worse, raise a CHANGED alarm from an entry ssh drops. Buffer.from does not fail on bad base64, it SKIPS invalid characters, so `<key>!!!` and a blob with `@@` spliced into it both decoded to the correct key and matched. Verified live against OpenSSH 10.2p1 on 127.0.0.1:2224: the unmodified control reached authentication and all three malformed variants produced "No ED25519 host key is known". A re-encode-and-compare makes us agree. `<key>AAAA` is the interesting one, and the reason the first fix was not enough: 68 characters plus 4 is still legal base64, and the algorithm header still reads ssh-ed25519, so neither the base64 check nor the existing header check sees anything wrong. ssh parses the whole key structure. We decoded 54 bytes where an ed25519 key is 51 and reported `mismatch` — a man-in-the-middle warning caused by a typo in a file ssh silently ignores. So the blob is now walked as what it is: a run of length-prefixed fields that must consume it exactly. Algorithm-agnostic on purpose, so a key type we do not model is checked as well as one we do. It also rejects a length prefix that overruns the buffer, which readHostKeyType only checked for the first field. And ssh's extract_salt demands exactly one SHA1 digest — "expected salt len 20, got 16" — where we accepted any non-empty salt. A short salt is still a usable HMAC key for us, so a hand-crafted line could match for us and be a parse error for ssh. ssh-keygen -H always writes 20 bytes, so refusing loses no real entry. Worth recording that ssh-keygen -F cannot answer any of this: it matches host names and prints lines without ever decoding the key, so it reports "found" for all four blobs. The real client was the only instrument that worked. Found by a parity review; the base64 finding as reported was right about the behaviour and wrong about the mechanism for the padded case, which is what led to the structural check. 1,533 SSH tests pass.
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 0.0.42
Community & Support
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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.