Bjorn Runaker
54eaa14756
* fix(grok): stop SessionStart orca-status hook hanging for 10s
Grok writes one JSON hook payload and waits for the process to exit
without closing stdin. The POSIX hook used `cat`, which waits for EOF,
so SessionStart deadlocked until Grok's 10s timeout:
session_start hook (global/orca-status) failed, ignored: timed out after 10000ms
Read one JSON object with raw_decode instead; return as soon as the
object is complete. Fall back to cat when Python is missing.
* fix(grok): decode the hook payload incrementally instead of per chunk
The JSON stdin reader strict-decoded the whole accumulated buffer after
every read and caught only json.JSONDecodeError. A multi-byte character
split across two os.read calls therefore raised UnicodeDecodeError, which
is a ValueError but not a JSONDecodeError, so the interpreter died — after
consuming stdin. The `python3 || python || cat` chain then handed the next
reader a truncated stream, and `cat` blocked on a pipe the caller never
closes, reinstating the exact 10s SessionStart timeout this reader exists
to avoid. Measured: a CJK+emoji payload written byte by byte hung until it
was killed; a 200KB payload split mid-character arrived as 4 bytes.
Hold the decoder across reads, treat any ValueError as "not complete yet",
and guard the whole program so a non-zero exit implies stdin was never
read — only then is the `||` fallback safe. Emit the object's own text
rather than re-serialising it, which was rewriting non-ASCII as \uXXXX.
Skip leading whitespace, which raw_decode does not. Separate the
first-byte wait (5s) from the idle wait (1.5s) so a writer that is merely
late is no longer dropped.
Also unset a HOME that does not exist before spawning the interpreter:
macOS resolves /usr/bin/python3 through an Xcode stub that re-runs its
whole tool lookup without a reachable cache, costing 6.6s per spawn and
overrunning Grok's budget on its own. This is what made the existing
large-payload and empty-PATH lifecycle cases fail.
The Python program now lives in a shell variable instead of being inlined
twice, which halves the generated script and keeps it readable.
---------
Co-authored-by: Neil <neil@stably.ai>
(cherry picked from commit 01f8aa8d96)
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 0.0.48 · 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.
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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.