Jinwoo Hong
5083b58b9c
Two independent desktop hardening changes that share one incident date.
1. Refresh-token replay. A refresh POST that aborts client-side leaves the
token's fate unknown: the server may already have rotated it before the
reply was lost. Every caller above this module (the relay auth coordinator
most of all) then re-entered and resent the same stored token, which the
server reads as reuse and answers by revoking the whole token family. On
2026-09-04 that turned a slow refresh endpoint into 21,605 sign-outs.
- The refresh endpoint now gets one 60s attempt instead of a 30s attempt
plus a replayed retry.
- A failure with no status line is ambiguous: it is never retried, and the
token is recorded so a re-entry within 30s is refused outright rather
than replayed. The block is bounded, not permanent -- the token is only
possibly spent, and a permanent block would sign out every desktop whose
refresh merely timed out.
- Before any retry or replay the stored session is re-read; if another
caller already rotated it, that result is adopted and the old token is
never sent again.
- Only a definitive 5xx, which proves the server rejected without
rotating, is retried, and exactly once.
- A 401 on a token whose earlier attempt never answered now logs
orca_cloud_refresh_possible_replay so support can tell a real revocation
from a sign-out we caused ourselves. clearCloudSessionIfUnchanged
semantics are unchanged and still emit the invalidation event.
2. Lease renewal jitter. Both desktop renewal timers took the mean of a
60s-wide window before expiry. A cell recreate reconnects a whole cohort
inside one second, so every host in it renewed inside the same second ~54
minutes later, re-bursting the fleet every ~54 minutes. Renewal now
carries full +/-10% jitter, spreading the same cohort over ~10 minutes.
Early renewal is free on the server side: the rebind branch resets the
full 55-minute TTL from whenever it arrives, with no minimum-age or
early-renewal restriction (cloud/apps/relay/src/host-session-registry.ts
:736-743, and :794 for a fresh session). Only lateness is fatal -- :997
drains and closes a lease that has expired. The base interval is therefore
shrunk to fit the upward jitter rather than clipping the jittered value at
the margin, which keeps the distribution unbiased and keeps every sample at
least 90s before expiry. No wire change.
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.
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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.
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Continue
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+ any CLI agent
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Desktop — macOS, Windows, Linux
- Download from onOrca.dev
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- 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
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Twitter / X: Follow @orca_build for updates and announcements.
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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.
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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.
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License
Orca is free and open source under the MIT License.