Jinwoo HongandOrcaWin 87d29262f8 fix(terminal): attach never-activated daemon sessions on remote subscribe and provider-read fallback (#12589)
* fix(terminal): attach never-activated daemon sessions on remote subscribe and provider-read fallback

A daemon-backed terminal whose tab was never activated in the host UI was
never attached, so the daemon emitted no bytes: paired clients rendered
blank/frozen panes and `terminal read` returned an empty tail while the PTY
was alive.

- Runtime: first remote view subscriber of a known-but-unattached local
  daemon session triggers an attach through the pty controller — attach-only,
  no resize, no renderer mount/focus, headless-safe, deduped across
  concurrent subscribers, and never detached on release. Excludes SSH-scoped
  ids and sessions a local spawn already published this generation.
- Read path: withVisibleSnapshotFallback now falls back to the provider tail
  for an empty-tail never-attached live local session; unprovable state stays
  empty, never an error.
- pty controller: expose attach with getProviderForPty-style routing,
  answering false on doubt; local daemon provider only.
- Daemon adapter: attach rides the session's applied size instead of a
  hardcoded 80x24, sends attachOnly, and retires a pre-v31 daemon's
  accidental spawn instead of publishing it.

Deterministic harness drives the real terminal.multiplex handler against a
real OrcaRuntimeService with an injected daemon-model controller whose data
events are gated on attach; covers snapshot-capable and snapshot-null
daemons, concurrency, release, replacement-spawn exclusion, and negative
safety. Red on base, green with the fix, red again with the fix reverted.

* fix(terminal): refuse degraded-provider attach fallback and surface failed legacy-spawn retire

Verifier follow-ups on subscriber-driven daemon attach:

- DegradedDaemonPtyProvider.attach routed unknown ids to the in-process
  fallback, whose no-op attach resolves — the runtime then pinned a
  subscriber-driven attach as succeeded while the stream stayed blank.
  Attach now refuses any route that resolves to the fallback (a fallback pty
  cannot own a daemon-surviving session), so the controller answers false,
  no sticky success is recorded, and a later subscriber attaches once a
  daemon adapter proves the id. Session-probe adoption moved to
  degraded-daemon-session-routing alongside the new refusal.
- The pre-v31 attach-only TOCTOU retire (accidental legacy spawn kill) now
  logs a warning with the sessionId on kill failure instead of swallowing
  it, so an orphaned replacement shell is diagnosable.

Regressions: degraded provider refuses unowned/fallback-owned attach and
routes to a daemon once it proves the id (red on previous commit); runtime
harness pins refused-attach retry for a later subscriber; adapter test pins
the surfaced kill failure.

---------

Co-authored-by: OrcaWin <293788423+OrcaWin@users.noreply.github.com>
2026-08-04 23:35:38 -07:00
2026-08-04 09:51:50 +00:00
2026-07-11 20:53:20 -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
2026-08-05 02:11:53 +00:00

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

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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

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 0.0.37 · 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 7.

    WeChat group 7 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.

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
2.3 GiB
Languages
TypeScript 95%
JavaScript 4.3%
Swift 0.2%
HCL 0.1%
CSS 0.1%