JinjingandJinwoo-H
d2d32691ef
* perf(persistence): add pty-binding fast lane to skip redundant flushes Terminal pane reattachment currently clones the session and serializes the entire 9.2 MB app state even when the binding is already in place and durable. Add an early-return fast path that skips this work when all nine predicates hold: no split, binding matches in-memory and on-disk, incarnation matches, no tombstone, and generation counter proves durability. Includes one-line fix in `writeToDiskSync` to record hash-matched sync flushes as durable, so the fast path doesn't stay parked behind a stale generation. Adds `persistence.pty-binding` observability spans (local NDJSON, unsampled for mutations, budgeted for fast-lane hits) to measure eligibility rates before and after. Includes ratchet test to ensure every binding writer bumps the generation. Diagnostic tools and full investigation notes from September 7, 2026 capture that identified the 59–100 ms no-op binds and measured a real terminal keystroke queued 117 ms behind one such call. * perf(persistence): add pty-binding fast lane to skip redundant flushes Rapid rebinds of already-durable PTY bindings (e.g., remounting panes) were unnecessarily expensive because they cloned and flushed the entire document state every time. Detect when a binding hasn't changed since the last durable write and skip to return immediately, eliminating main-thread cost on that path. * perf(persistence): record binding.origin on the pty-binding span Fresh spawns always flush, so a fast-lane rate over all calls is diluted by however many terminals the user opened. Each caller knows whether it is a spawn, a reattach, a split, or a relay reattach; pass that through as metadata and record it so the reattach hit rate can be read from the trace file. Never branched on. * fix(persistence): keep the tab row on its first pane when a sibling pane binds A tab row names one PTY, but a split tab holds several panes. The renderer keeps the row on the first pane and refuses to let later split-pane spawns steal it, since a remount reattaches the tab to whatever the row says. Main overwrote it with whichever pane was binding, and the renderer's next publish put it back, so every sibling reattach was a state change and could never take the fast lane. On the real profile that is 38% of panes. Rewrite the row only when it names nothing useful: null, the PTY this leaf is replacing, or a PTY no leaf holds. The fast-lane predicate compares against the same rule. * perf(persistence): record durable pty-binding flushes per pane The global write generation is held back by any unrelated dirty state, causing bindings unchanged for minutes to appear unpersisted despite being on disk. Track per-pane durability to skip redundant flushes. * docs(persistence): describe the per-pane durability record The durability section still described the global generation check as the whole story and claimed there was no binding durability cache. Record the measurement that motivated the per-pane record, and why retiring one needs no cooperation from other binding writers. * docs(perf): consolidate every measured Orca performance issue into one register Folds the findings from all related debug sessions into the live lag investigation: the persistence/main-thread work (P1-P11), host contention (H1-H5), git and subprocess load on main (G1-G8), renderer and terminal rendering (R1-R8), the terminal daemon session leak from the deleted debug-orca-perf-issue worktree (D1-D9), and the Cmd-J palette review (C1-C6). Keeps the measurement behind each claim, records what is fixed versus open, and restates what the 117 ms keystroke delay still does not explain. * fix: address performance review findings * fix: satisfy diagnostic probe lint * chore: keep investigation artifacts out of performance PR * fix: run lag probe regression tests with Vitest * perf(persistence): replace pane receipts with global durability check * refactor(persistence): remove redundant binding review machinery * test(persistence): satisfy current assertion-free quality gate --------- Co-authored-by: Jinwoo-H <jinwoo0825@gmail.com>
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
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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 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.
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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.
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.