Files
orca/mobile
Brennan Benson ab9d1a29a9 fix(worktree): never reissue a generated workspace name (#14350)
* fix(worktree): never reissue a generated workspace name

Generated workspace names were deduped only against currently-live
worktrees, so deleting a workspace returned its name to the pool. A later
workspace could draw the same name, land on the same directory path, and
inherit the previous occupant's agent conversation history — coding-agent
CLIs key their prompt history and transcripts by cwd.

Names are now retired permanently per repo. The registry is written in
main with the name Git actually used (the create loop can advance past a
requested name on collision), and seeded once per run from workspace
directories and surviving agent transcript buckets so already-spent names
are excluded from the start. Suggestions degrade to -2, -3 variants
instead of recycling, and those variants retire too.

User-typed names are untouched: retirement filters suggestions only.

* fix(mobile): honor retired workspace names, on one shared implementation

Mobile hand-duplicated the desktop name-suggestion algorithm and deduped
only against live workspaces, so a phone could still be offered a name
whose deleted workspace left agent conversation state behind at that path.

Both platforms now call one shared selector in src/shared, so the two can
no longer drift. The host publishes retired names as an optional field on
the existing worktree.list response, and mobile fetches them per selected
repo while the create sheet is open — mirroring the desktop hook.

Mobile never calls worktree.list for its catalog (it uses worktree.ps,
which carries rows only), so this is a targeted request rather than a
change to the catalog or its cache. Hosts predating the field omit it and
mobile falls back to live-only dedupe, which is the pre-change behavior.

* fix(worktree): close retirement consistency gaps

* test(worktree): cover retirement runtime contracts

* fix(worktree): retire generated collision names

* fix(worktree): enforce retired names at creation

* refactor(ai-vault): extract the Claude project-dir encoder

The bucket-name encoder and its scope-boundary check were private to the
session scanner, so a second consumer had to reimplement them — and got the
per-character encoding wrong. Move both to a shared module with direct tests.

* fix(worktree): make the retirement seed scan actually match buckets

The bucket encoder collapsed runs of non-alphanumerics while the real one
emits a dash per character, so every dot-path bucket missed and the Windows
default workspace root (C:\...) matched nothing at all. Reuse the shared
encoder and its boundary check, which also stops a repo absorbing a sibling
whose path merely shares its prefix.

Also:
- Derive the workspace leaf by stripping the known encoded parent instead of
  guessing from trailing dash segments, which retired the parent directory's
  name whenever a workspace was named numerically.
- Reuse isAutoGeneratedCreatureBranchName so the -10 and -100 tiers retire.
- Drop the .codex/sessions root: Codex keeps the cwd inside the transcript
  rather than in a directory name, so the scan could only ever see a year
  folder. Reading transcript contents is not a trade this feature justifies,
  so the gap is documented instead.
- Honor CLAUDE_CONFIG_DIR, which relocates the bucket root.
- Delete the unused retirableLeafName export.

Tests write buckets with the real per-character encoding against a fake home,
covering POSIX, dot-directory, Windows drive and WSL UNC roots; all three
platform cases fail against the previous encoder.

* fix(worktree): retire only generated names, keyed by cwd namespace

Two problems in the host-side registry.

Retirement fired for every create, including names the user typed. The
creature pool contains ordinary words — orca, runner, sole, molly, oscar — so
typing a retired 'nautilus' silently produced directory and branch
'nautilus-2' and burned the name for good. Creates now carry an explicit
nameWasGenerated flag; both the skip and the retire are gated on it, and it
defaults to false so CLI and automation callers are unaffected.

The registry was keyed by repo id, but both readers already discarded the id
and unioned by the cwd collision key, because the collision this prevents is
on the path. Keying by that namespace directly fixes several things at once:
entries no longer orphan when a repo is removed, remove/re-add no longer loses
every retirement for an unchanged path, the missing removeProject prune is
moot, and the backfill promise no longer merges into only the first repo id it
saw. The feature is unreleased, so no migration is needed.

Also:
- Memoize the collision key. It runs computeWorktreePath, which for a WSL repo
  is a blocking execFileSync('wsl.exe') whose failure path is uncached, and
  the previous code recomputed it once per repo on every create and every
  listRetiredNames call.
- Drop retiredNamesByRepo from the worktree list result. It had no readers and
  leaked onto 'orca worktree list --json', and its awaited backfill sat on CLI
  selector resolution. The dedicated listRetiredNames RPC keeps its consumers.
- Make the three RuntimeStore methods required. RuntimeStore is file-private
  with two constructors, so the 'older embedders' the optionality protected do
  not exist, and the optional chain silently returned no retirements.
- Revert the unrelated forceDeleteBranch rewrite, and make room under the
  file's line budget by extracting the create-args mapping instead.

* fix(worktree): send name provenance and stop gating Create on the fetch

Desktop and mobile now mark a create as generated-name only when the user
typed nothing and the composer fell back to the suggestion, so the host knows
which names it may retire.

Remove the retired-names loading gate from every create path. The host already
skips retired candidates before doing any git work, so the client gate bought
nothing while it could disable Create for the length of a full mobile
reconnect ladder (the wait had no timeout) and blank the desktop button
between queued creates. The suggestion still waits; the button never does.

Also make the web client call worktree.listRetiredNames instead of hardcoding
an empty list — the method is registered and mobile-allowlisted, so the
comment claiming no wire call existed was wrong — and filter the mobile
response to strings so a malformed row cannot throw during normalization.

* fix(worktree): key retirement by repo id and prune it with the repo

Reverts the collision-key storage key. It was a function of workspaceDir,
nestWorkspaces, worktreeBasePath and repo.path, so toggling any one of those
orphaned every retirement for every affected repo at once — trading a rare
churn (remove/re-add) for a common one. The read path already unions by cwd
namespace at query time, so cross-repo sharing never depended on the storage
key.

Instead, address the growth and orphaning directly:
- Drop the registry in removeProject, and in removeProjectForHost once the last
  host's copy of the repo id is gone, alongside the sparse-preset deletes that
  already follow this convention.
- Bound each repo's registry. The cap sits far above the 552-name pool because
  evicting inside it would reissue a name whose agent state is still on disk;
  only -2/-3 tier accumulation can ever reach it.
- Carry retirements through profile transfer, re-keyed to the destination repo
  id and dropped from the source, mirroring sparsePresetsByRepo.

Separately, fix the backfill merge: the scan promise is cached per cwd
namespace, but it closed over the first repo id that triggered it, so a second
repo in the same namespace received nothing. The scan stays shared; the merge
moves out of the cached promise and runs for whichever repo asked.

Local repos re-seed on re-add through that backfill. SSH repos do not — the
scan cannot see the execution host — which is now stated in the module.

* docs(worktree): spell out why the retirement bound sits above the pool

Names the trap directly: the neighbouring 50/200 bounds cap histories, so
lowering this one to match them would silently start reissuing names whose
agent state is still on disk. Also states that oldest-first eviction is a
deliberate least-bad choice rather than a neutral one.

* fix(worktree): send name provenance from the web runtime client

This client hand-enumerates worktree.create params, so the new optional field
was silently dropped and typecheck could not see it. On web and paired-desktop
the host therefore never received it: generated names were never retired, and
the host-side skip that backstops a stale suggestion was disabled too. The same
client does fetch retired names for suggestions, so it was filtering against a
registry nothing ever wrote to.

The test asserts both directions, and fails without the fix.

* fix(worktree): retire names that took more than one collision suffix

isAutoGeneratedCreatureBranchName strips exactly one trailing -N, which is
right for auto-rename eligibility but wrong here. Once the pool is spent the
suggester emits nautilus-2, and a collision on that yields nautilus-2-3 —
which a single strip leaves as nautilus-2, not a pool name, so retirement
no-opped at exactly the tier where every base name is already gone. Strip
repeated suffixes locally rather than moving the auto-rename predicate.

* perf(worktree): keep the retirement backfill off the blocking WSL probe

The backfill runs on composer repo-select, not just at create time, and it
derived the probe path synchronously — which for a WSL repo with a mirrored
workspace dir reaches getWslHome and its blocking execFileSync('wsl.exe').
A stopped distro froze the main process for up to 5s on composer open.

Adds an async twin of computeWorktreePath and uses it for the probe. Resolving
the home there also warms the shared cache, so later sync callers are free.

Also stops memoizing the collision key when the WSL home is still unresolved:
only the success path is cached upstream, so caching the fallback namespace
would strand the repo there for the rest of the session.

* fix(worktree): hold retired names across a refresh instead of blanking

refreshKey changes on every workspace-list mutation, so create-multiple
refetches after each create and the hook returned an empty list until the
refetch landed — precisely the window in which resetForNextCreate clears the
name field and a fresh suggestion is drawn. Keep the previous answer while
revalidating and reset only when the repo changes; a failed refresh keeps what
was already loaded rather than un-retiring everything.

Also makes the returned array referentially stable, so the suggestion memo
downstream stops rerunning on every refetch.

* refactor(worktree): put the retired-name cache rules on one implementation

The desktop and mobile hooks that fetch retired names had already drifted
four ways. The transports genuinely differ (IPC vs RPC), but the caching
rules must not, and mobile's copy reset to [] on any error -- which
un-retires every name for the rest of the sheet session, the one outcome
retirement exists to prevent.

Moves the rules into src/shared/worktree/retired-name-cache: response
normalization, the never-leak-across-repos rule, and the hold-previous-on-
failure rule. Pure, no React, because src/shared is on the main process's
import graph. Each platform keeps its own transport and effect.

Mobile moves up to desktop's behavior: it now holds the previous answer
through a failed refresh, and refetches when the workspace list changes
instead of never refetching after mount.

Also drops the unused `loading` return. Neither platform consumed it; its
only consumer was the Create-button gate reviewed out earlier, and removing
it makes that regression unexpressible.

* fix(worktree): import shared types from their real modules

Main dropped the src/shared/types barrel, so the retirement module's import
resolved locally but not against the PR's merge base.

* refactor(worktree): bound the retirement registry by tier compaction, not eviction

Retirement is a correctness guarantee — a spent name's directory may still hold
agent conversation state keyed by that cwd — so the 2000-entry cap was the wrong
shape: reaching it handed a name back. At the owner's measured rate (~6.6 pool
names retired per day in one repo) the cap was ~9 months out.

Names come from a fixed 552-entry pool and the suggester only reaches tier N+1
once every tier-N name is taken, so a completed tier is exactly a set that no
longer needs listing. A row is now a watermark plus the names above it: reads
answer at-or-below the watermark with no lookup, and compaction drops the 552
entries the watermark now covers. Bounded at one pool per repo forever, with no
eviction and nothing un-retired.

Tiers can complete out of order (a create-time collision can spend `nautilus-2`
while tier 1 is open), so compaction loops and higher-tier names simply wait.

The RPC result carries the watermark beside the names as a new field; a client
predating it reads the names only and under-retires the compacted tiers, which
degrades to the pre-retirement behavior rather than breaking.

* fix(worktree): preserve generated name retirement across failures
2026-08-14 22:18:36 -07:00
..

Orca Mobile

React Native companion app for Orca. Monitor worktrees, view terminal output, and send commands from your phone.

Local development uses two processes:

  • Orca desktop/Electron from the repo root. This hosts the mobile WebSocket RPC server on port 6768.
  • Expo Metro from mobile/. This serves the React Native app on port 8081.

Unless a command says otherwise, run mobile app commands from the mobile/ directory.

Prerequisites

  • Node.js 24+
  • pnpm
  • Xcode and/or Android Studio tooling for simulator or device builds
  • Expo Go on your phone, or a development client build when native modules are needed
  • Phone and desktop on the same LAN when testing a physical phone

Start Desktop Orca

From the repository root:

pnpm install
pnpm dev

Confirm the mobile RPC server is listening:

lsof -nP -iTCP:6768 -sTCP:LISTEN

Restart pnpm dev after changing Electron main-process code. Metro hot reload only applies to the mobile JavaScript bundle.

Start The Mobile App

cd mobile
pnpm install
pnpm start

Scan the Expo QR code with your phone's camera on iOS, or Expo Go on Android.

For a native dev-client build:

pnpm exec expo run:android
pnpm exec expo run:ios
pnpm start --dev-client

Pair With Desktop Orca

  1. Open Orca desktop.
  2. Go to Settings > Mobile.
  3. Scan the pairing QR code from the mobile app.
  4. Confirm the mobile host endpoint is ws://<desktop-ip>:6768.

For the Android emulator, use ws://10.0.2.2:6768. For a physical phone, use the desktop LAN IP, for example ws://192.168.0.179:6768.

If the phone has a stale host entry, remove it from the app and pair again.

Development Paths

Android Phone

  1. Install Expo Go from Google Play
  2. Run pnpm start, scan QR with Expo Go
  3. For native modules: pnpm exec expo run:android
  4. Run with pnpm start --dev-client

iOS Simulator

  1. Install Xcode from the App Store
  2. Run pnpm start --ios to open in iOS Simulator

Physical Phone Debugging

The phone can be inspected through the connected device tooling:

orca snapshot --json
orca click --element @e3 --json
orca fill --element @e1 --value "ls" --json
orca screenshot --json

Use snapshot first to find the current element refs, then click/fill those refs. After mobile file edits, Metro usually hot reloads automatically, but navigating out of and back into the session screen can be useful because it re-runs terminal.subscribe.

Terminal Streaming Repro Without A Phone

Use this when terminal output does not render on device and you need to split server streaming bugs from WebView/UI bugs:

cd mobile
ORCA_MOBILE_WS_URL=ws://127.0.0.1:6768 pnpm exec tsx scripts/test-subscribe.ts <deviceToken> <serverPublicKeyB64>

You can pass a worktree selector as the third argument:

pnpm exec tsx scripts/test-subscribe.ts <deviceToken> <serverPublicKeyB64> "id:<worktreeId>"
pnpm exec tsx scripts/test-subscribe.ts <deviceToken> <serverPublicKeyB64> "path:/absolute/worktree/path"
pnpm exec tsx scripts/test-subscribe.ts <deviceToken> <serverPublicKeyB64> "name:my-worktree"

The expected result includes:

streamSawMarker: true
readSawMarker: true

If this repro fails, debug the desktop runtime/PTY path before the mobile WebView. If it passes but the phone is blank, debug the session screen or TerminalWebView readiness/queueing path.

Terminal Color Repro Without A Phone

Use this when terminal colors disappear after switching tabs. Open a Claude Code terminal and at least one other terminal in the target worktree, then run:

cd mobile
ORCA_MOBILE_WS_URL=ws://127.0.0.1:6768 pnpm exec tsx scripts/repro-terminal-colors.ts \
  <deviceToken> <serverPublicKeyB64> "id:<worktreeId>"

The script captures terminal.subscribe snapshots in an A → B → A sequence and writes raw snapshots to mobile/terminal-color-repro/. If the two A snapshots have different sgrColor counts, the desktop snapshot changed during the switch. If they match, the ANSI color data is still present and the bug is in mobile replay/rendering.

Validation

Run these checks before committing mobile terminal changes:

cd mobile
pnpm exec tsc --noEmit
pnpm lint
cd ..
pnpm typecheck:node

Protocol Version Compatibility

Mobile and desktop talk over a versioned protocol. Because mobile updates lag desktop by 24-48h via the App Store, both sides exchange version numbers on status.get so a genuinely incompatible combo can hard-block instead of silently misbehaving.

Constants live in two files (Metro can't resolve outside mobile/):

  • src/shared/protocol-version.tsDESKTOP_PROTOCOL_VERSION, MIN_COMPATIBLE_MOBILE_VERSION
  • mobile/src/transport/protocol-version.tsMOBILE_PROTOCOL_VERSION, MIN_COMPATIBLE_DESKTOP_VERSION

Today all four are set so evaluateCompat always returns { kind: 'ok' } — nothing blocks. The wire format is in place to flip a switch when needed.

When to bump

Bump DESKTOP_PROTOCOL_VERSION (and the mobile mirror MOBILE_PROTOCOL_VERSION when relevant) for breaking changes:

  • Removed RPC method or required parameter that mobile uses
  • Changed meaning (units, nullability) of an existing field mobile reads
  • Changed encryption, framing, or auth handshake

Do not bump for additive changes:

  • New RPC methods
  • New optional fields on existing methods
  • New event types in terminal.subscribe

Set MIN_COMPATIBLE_MOBILE_VERSION (kill-switch) when desktop ships a change that requires a minimum mobile version to function safely. Same for MIN_COMPATIBLE_DESKTOP_VERSION from the mobile side.

When a verdict is blocked, mobile/src/components/ProtocolBlockScreen.tsx renders a screen pointing the user at either the App Store (mobile too old) or GitHub Releases (desktop too old).

To exercise the block screen locally: set MIN_COMPATIBLE_DESKTOP_VERSION = 999 in mobile/src/transport/protocol-version.ts, rebuild, pair to any desktop. Revert before merging.

Mock Server

Develop the mobile app without a running Orca desktop instance:

pnpm mock-server           # starts mock WebSocket server on port 6768

Connect from the app using endpoint ws://localhost:6768 and token mock-device-token.

Environment variables

  • MOCK_NATIVE_CHAT=1 — serve the native-chat scenario (one live agent tab, empty transcript, image upload) instead of the default terminal fixtures.
  • MOCK_SERVER_KEY_FILE — persist the server keypair across restarts so a paired device keeps its public-key pin. A missing or invalid file is re-keyed with a warning, which forces a re-pair.

Scenario control files

Read on every request, so behaviour can be flipped mid-session without a restart (a restart would re-key E2EE and force a re-pair). Write the mode into the file, or delete it for the default.

  • MOCK_SEND_MODE_FILE (default orca-mock-send-mode in the system temporary directory) — accept (default) accepts the send, error fails it with mobile_input_floor_unavailable, anything else reports the send as rejected.
  • MOCK_TERMINAL_LIST_MODE_FILE (default orca-mock-terminal-list-mode in the system temporary directory) — omit returns an empty terminal list, other returns a list that omits the chat handle, anything else lists it.
  • MOCK_TERMINAL_STREAM_MODE_FILE (default orca-mock-terminal-stream-mode in the system temporary directory) — dead answers a subscribe with subscribed then end (a gone PTY), which is what exercises the rearm bound and terminal prune; anything else streams normally.

Connecting to Real Orca

  1. Start Orca desktop with WebSocket transport enabled
  2. In Orca, go to Settings > Mobile and scan the QR code with this app
  3. The QR encodes the connection endpoint, device token, and TLS fingerprint

Project Structure

mobile/
├── app/                   # Expo Router screens (file-based routing)
│   ├── _layout.tsx        # Root layout with navigation stack
│   ├── index.tsx          # Home screen — paired hosts list
│   └── pair-scan.tsx      # QR code scanning screen
├── src/
│   ├── terminal/          # Terminal WebView and xterm bridge
│   └── transport/         # WebSocket RPC client
├── scripts/
│   ├── test-subscribe.ts  # Desktop streaming repro without a phone
│   └── mock-server.ts     # Standalone mock WebSocket server
└── assets/                # App icons and splash screen