Neil 320f4c8b87 perf(renderer): index four projections that rescanned their inputs per keystroke (#18747)
Four renderer projections scanned a collection inside a loop over another collection, each on a
path that reruns per keystroke or per store write. All four now build the index once per stable
input, which is what the surrounding code already does for its other lookups.

`workspace-kanban-search.ts` called `searchWorktrees`, the convenience wrapper that builds the
palette document index inline. The board's filter hook memoized the whole call on the query, so
every character re-normalized and re-segmented every indexed field of every worktree — and did
it again on every agent-status tick while a query was active, since those churn board
identities. `buildWorkspaceBoardPaletteDocuments` splits out, memoized on
`[worktrees, repoMap]`; only the match reruns per keystroke. This is the shape
`worktree-jump-palette-document-index.ts` already provides for Cmd-J.

`useTabGroupItemProjections` resolved each editor tab against `state.openFiles` — the global
list across every worktree — and each `tabOrder` entry against the group's tabs, with a `.find`
per element. Both are now `Map` lookups, alongside the `terminalTabById` index the same file
already built. The memo key `groupTabs` gets a new identity on any unified-tab write, so this
ran on title, label and colour changes.

`buildSourceControlTree` rebuilt every ancestor path with `segments.slice(0, i + 1).join('/')`
per segment, making tree construction O(files x depth^2) in characters copied — on the path the
Source Control file filter rebuilds per keystroke. The path now accumulates.

`worktree-header-section-boundaries.ts` ran a full `findIndex` over the render rows for every
header row, plus an `indexOf` over the bucket ordering, in two `useMemo`s keyed on `renderRows`
— so it recomputed on every sidebar row-model change, not just during a drag. One indexing pass
each, first-match-wins to match `findIndex`/`indexOf`. The successor index is keyed per bucket
because a repo or group id can appear in more than one bucket ordering; a flat id-keyed map would
pick whichever bucket was iterated first. `worktree-header-section-boundaries.test.ts` pins that
and the first-wins duplicate-header case.

Measured by `pnpm bench:renderer-quadratic-scans`. Three scenarios time the production export
against a reproduction of the pre-change function; the tab-group scenario is modelled on both
sides because the projection lives inside a React hook. Each asserts before/after agree first.

| projection | drives | scale | before | after | |
| --- | --- | --- | --- | --- | --- |
| workspace board filter (per keystroke burst) | production | 300 worktrees x 12 keystrokes | 15.4 ms | 4.4 ms | 3.5x |
| tab-group projections (per unified-tab write) | modelled | 60 tabs x 120 open files | 1.23 ms | 0.34 ms | 3.6x |
| source-control tree build (per filter keystroke) | production | 5000 changed files | 6.2 ms | 3.9 ms | 1.6x |
| sidebar header boundaries (per row-model rebuild) | production | 80 repos x 600 rows | 2.0 ms | 0.8 ms | 2.6x |

The tree and sidebar wins are smaller than the scans they remove because the rest of each
function (tree finalize/sort, per-row size estimation) is linear and now dominates.
4,537 existing sidebar, tab-group and right-sidebar tests pass unmodified.
2026-09-05 00:11:51 -07:00
2026-09-03 17:32:59 -07:00
2026-05-04 20:42:03 -07:00
2026-03-16 22:27:51 -07:00
2026-03-28 10:19:14 -07:00
2026-09-04 01:44:52 -07:00

Orca Orca

GitHub stars Total downloads across all releases License: MIT Join the Orca Discord Follow Orca on X Supported platforms: macOS, Windows, and Linux

中文 · 日本語 · 한국어 · Español · Français · Português

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

Orca desktop app running agents in parallel worktrees, with the Orca mobile companion app in the corner

Features

Mobile Companion

Monitor and steer your agents from your phone — get notified when an agent finishes and send follow-ups from anywhere.

iOS App Store · TestFlight · Android APK 0.0.47 · Docs →

Orca desktop with the mobile companion app

Parallel Worktrees

Fan one prompt across five agents, each in its own isolated git worktree — compare the results and merge the winner.

Docs →

Parallel worktree orchestration

Terminal Splits

Ghostty-class terminals with WebGL rendering, infinite splits, and scrollback that survives restarts.

Docs →

Terminal splits

Design Mode

Click any UI element in a real Chromium window to send its HTML, CSS, and a cropped screenshot straight into your agent's prompt.

Docs →

Embedded browser and Design Mode

GitHub & Linear, Native

Browse PRs, issues, and project boards in-app — open a worktree from any task and review without a context switch.

Docs →

GitHub and Linear task workflows in Orca

SSH Worktrees

Run agents on a beefy remote box with full file editing, git, and terminals — auto-reconnect and port forwarding included.

Docs →

Remote worktrees over SSH

Annotate AI Diffs

Drop comments on any diff line and ship them back to the agent — review, edit, and commit without leaving Orca.

Docs →

Annotate AI-generated diffs

Drag Files to Agents

VS Code's editor with autosave everywhere — drag files or images straight into an agent prompt.

Docs →

Drag files and images into an agent prompt

Orca CLI

Agents drive Orca too — script every workflow with orca worktree create, snapshot, click, and fill.

Docs →

Script Orca from the CLI

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 logo Claude Code   Codex logo Codex   Grok logo Grok   Cursor logo Cursor   GitHub Copilot logo GitHub Copilot   OpenCode logo OpenCode   MiMo Code logo MiMo Code   Amp logo Amp   OpenClaude logo OpenClaude   Antigravity logo Antigravity   Pi logo Pi   oh-my-pi logo oh-my-pi   Hermes Agent logo Hermes Agent   Devin logo Devin   Goose logo Goose   Auggie logo Auggie   Autohand Code logo Autohand Code   Charm logo Charm   Cline logo Cline   Codebuff logo Codebuff   Command Code logo Command Code   Continue logo Continue   Droid logo Droid   Kilocode logo Kilocode   Kimi logo Kimi   Kiro logo Kiro   Mistral Vibe logo Mistral Vibe   Qwen Code logo Qwen Code   Rovo Dev logo Rovo Dev   + any CLI agent


Install

Desktop — macOS, Windows, Linux

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.


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.

    WeChat group 8 QR code for the Orca community  WeChat group 9 QR code for the Orca community

  • 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.

Orca contributors

GitHub star history chart for stablyai/orca

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.

S
Description
Orca is the ADE for working with a fleet of parallel agents. Run any coding agent with your own subscription. Available on desktop, mobile and remote runtime.
Readme MIT
1.5 GiB
Languages
TypeScript 95.2%
JavaScript 4%
Swift 0.2%
CSS 0.2%
HCL 0.1%