Two sends could be written into the journal under one durable identity. Codex coalesces a mid-turn `turn/start` into the running turn rather than refusing it -- measured against real `codex app-server` builds 0.147.0, 0.150.1 and 0.153.4, none of which refuse and none of which fire a second `turn/started`. The dispatch path read the turn id from the turn/start response and stamped every accepted send `ordinal: 0`. Since a coalesced send gets the running turn's id back, two submissions persisted the same `providerItemId`. That string is durable, and it is the key a restore uses to match a submission against provider history, so the second message's real history row matched nothing and rendered as an extra bubble on replay. On 0.147.0 it is worse than a collision: the coalesced response returns a turn id that never starts and never completes, so the persisted key named a turn absent from history and NEITHER message could match. Identity is now minted from the echoed user message at `identityFor` -- the single point that mints the journal row's own identity -- so the settled key is by construction the one replay computes, rather than a parallel calculation that can drift. Dispatch returns `admitted` when the transport write completes; identity settles on the echo through a channel that did not previously exist for Codex. Waiters are keyed by client message id instead of being shifted off the front of an array by arrival order, and they are cleared on session close and child exit -- previously a timeout was the only thing that ever ended one. `TURN_ID_WAIT_MS` is deleted. It was never reachable on any build measured: `readCodexTurnId` returns non-null on all three, so the 10s wait never fired. The comment justifying it claimed older builds acknowledge before the id exists, which no tested build does. Three comments asserting Codex answers a mid-turn send with `turn already running` are corrected. Their only backing was a test fixture inventing that error string. The correction is factual only -- every changed line in `src/main/runtime/orchestration/` is a comment, and mid-turn delivery is still refused for both providers. Whether that policy is right is a separate question; it was resting on a false premise. Known gap, stated rather than implied: this prevents new collisions and does not repair journals already written with a colliding or phantom key. Those conversations keep duplicating on restore. Repairing them means re-matching persisted submissions against provider history and rewriting `providerItemId` -- which is what `journal-submission-reconciler.ts` is written for, and it still has no production caller.
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 0.0.48 · 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.
-
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.












