Merge Sim 37603ec532 fix(orchestration): close the review findings on the structured parity work
Four defects and two follow-ups from the delta review.

The `worktree rm` refusal was a dead end in the desktop UI. Its message matched
no matcher in `classifyWorktreeForceDeleteReason`, and an ordinary desktop delete
already passes `force=true` for the dirty-file skip, so classification returned
null unconditionally: the toast showed raw CLI wording with no Force Delete
button, and a user with a live chat session was stuck unless they knew to reach
for the CLI. That is the #11960 shape `shared/worktree/removal.ts` documents, so
the refusal now has its own prefix, matcher, `WorktreeForceDeleteReason` and
toast copy, classified BEFORE the `force` guard and nulled once the waiver is
spent — exactly how `unstopped-pty` is handled, with matcher and hint kept in
the same file as that contract requires. The copy says Force Delete will close a
running conversation rather than borrowing the "could not confirm" wording,
because Orca watched these sessions stay attached; there is no doubt to waive.

Structured `terminal read` cursors were unsound and are now refused. The PTY
cursor indexes an append-only completed-line buffer with a monotone count; a
session journal is a BOUNDED tail re-projected on every read, so a saved index
addressed different lines as the journal grew — and `truncated` could never fire
to say so, because it tests `cursor < oldestCursor` and `oldestCursor` was always
0. A poller got wrong or duplicated lines under `truncated:false`. Separately, a
streaming turn's lines counted as completed with `partialLine` hardcoded empty,
so a mid-turn cursor consumed a half-written line whose growth was never
redelivered — the `"hel"`/`"hello"` hazard the PTY reader guards against. The
journal does have stable item identity, but `terminal.read`'s cursor is a number
on the wire and cannot carry it, so a cursor read now refuses and names
`worker-read --source transcript`, which already has that contract including
`source_changed`. No cursor space is advertised either: `nextCursor` is null and
the cursor fields are absent, rather than claiming an index the next read cannot
honour. The header claim that all four fields kept their meanings was true of the
shape and false of the invariants; it now says which ones hold.

Two fixes had no test at their real seam, which is the same failure that produced
this whole set — the runtime tested directly, the seam tested by neither. The
group-addressing test hand-composed the recipient list itself, so deleting the
composition at the call site left it green; it now drives `sendGroupMessage` with
no PTY terminals at all. Nothing referenced `isLiveStructuredAgent`, so the
`dispatch --inject` fix had no red-then-green at all; it now has one driving
`RuntimeTerminalAgentPresence.isRunning`. Both were ablated and confirmed red.

Folder-workspace removals sweep and kill PTYs without `requirePhysicalStop`, so
the structured sweep no-opped there and left a live session bound to a workspace
about to be forgotten. They now close best-effort under an explicit
`closeStructuredSessions` flag, kept separate from `requirePhysicalStop` because
the two questions differ: that one asks whether a stop must be PROVEN before
files are touched, and it is what licenses a refusal. These paths do not refuse —
the root is shared so no checkout vanishes under the child, and one of them is a
never-throw forget a refusal would wedge. Reconciliation sweeps set neither and
still close nothing.

Also: the force close is raced against the same sweep deadline every PTY surface
is bounded by, so a wedged provider close reports the timeout instead of hanging
`worktree rm --force` forever; and the refusal now prints a count and the
providers instead of raw session ids, which our own marker rationale treats as
one tab-id hop from a credential.
2026-09-06 03:14:16 -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

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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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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.

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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.

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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.

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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.

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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.

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Annotate AI-generated diffs

Drag Files to Agents

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

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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.

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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

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Community & Support

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  • Feedback & Ideas: We ship fast. Missing something? Request a new feature.

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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

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Signed Builds

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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.
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