Files
orca/mobile
Jinwoo Hong 6ed961b322 test(mobile): scan for the params contract before parsing, so the boundary census fits its budget under load (#21970)
* test(mobile): read only the files that name the params contract, not all 2,235 (OTA phase C)

`keeps every mobile import of the params contract type-only` timed out at 5,000 ms in Mobile Checks
on #21964 and once in the lead gate on #21969, while passing alone in about a second. Measured here
rather than guessed, on this tree:

| step                                  | cost   |
| ------------------------------------- | ------ |
| walk `app` and `src` (shared walker)   |   4 ms |
| read 2,235 files, 11.3 MB              |  42 ms |
| parse every one of them                | 392 ms |
| visit every resulting AST              | ~650 ms |

Exactly one of the 2,235 reaches the contract. The case was parsing and walking the tree of the
other 2,234 to find that out, and under full-suite load it had 4,216 ms of its 5,000 ms budget gone —
784 ms of margin, which is the intermittency.

The walk was never the problem and is unchanged: `censusSourceFiles` already excludes the generated
files that took this case from 1.5 s to over its budget in the first place. What is new is a first
stage between the read and the analyser. `ts.preProcessFile` is the scanner behind `tsc`'s own
dependency discovery: it reports every module reference — the same four shapes the analyser inspects
— without building a tree, and only the files it names as reaching the contract are parsed.

A substring search over the text would have been faster still and wrong: a specifier spelled
`rpc-contract` resolves into the contract and does not contain its name. The scanner decodes it,
and that shape is now one of the cases, asserting its own premise rather than claiming it in a
comment — its text does not contain `rpc-contract`, and the filter admits it anyway.

Two rules keep the new stage honest. Every shape the analyser flags, plus the three type-only
spellings and the escaped one, must survive the filter — a narrowing to `includes('rpc-contract')`
reds that with five shapes lost. And the set the filter hands on must be non-empty, because `[]`
offenders is also what a census reaching nothing at all prints: pointing `contractRoot` at a renamed
directory now reds all three cases instead of passing.

Verified still a fence: a planted value import of `repo-params` in `src/session` is reported by name.

4,216 ms to 319 ms under the full suite, 1,103 ms to 189 ms alone. No timeout was raised.

Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb

* test(mobile): name the boundary census's import spellings

The anti-slop gate reads `shapes` as structure rather than ownership, and
it is right: the array holds the spellings of one contract import, which
is what the case is about. `contractImportSpellings` says that, and the
`it` title and the comment below it follow.

Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb

* test(mobile): admit namespace re-exports the pre-filter cannot see

`ts.preProcessFile` does not report `export * as ns from '...'` or its
`export type * as ns` form. It reports `export *`, `export { X } from`,
`import ns = require()` and the rest, which is what made the filter look
sound. So a mobile file re-exporting the params contract under a name was
dropped before the analyser saw it, and the census passed empty on
exactly the shape its soundness case exists to catch.

Red first: both spellings added to the admitted list failed the case,
naming themselves.

The filter keeps the cheap path and adds the one shape the scanner omits,
matched on its own spelling rather than on the contract path. A text
match for the path is the wrong widening and this file already holds the
counterexample: the escaped-specifier case is a real import whose text
never contains the directory name, so a substring fence would miss it
while looking thorough.

The cost is bounded because the shape is rare, counted rather than
assumed: across the 2,236 files this census reads, the only match is this
file, through the fixture strings themselves. No product file uses it, so
the widening parses nothing that was not already parsed.

The timeout this PR exists to fix is unaffected. Under full-suite load
the slow case runs in 1179 ms against its 5 s budget.

Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb

* test(mobile): find namespace re-exports by token, not by text

`export * /* note */ as ns from '...'` is one namespace re-export and the
regex did not match it, so the pre-filter still dropped a file the
analyser needed to see. The same sequence split by a line comment is the
same hole. A text rule reads the characters between `*` and `as`; the
language does not.

Red first: both spellings added to the admitted list failed the case,
naming themselves.

The rule is TypeScript's own scanner now, walking for `export`, an
optional `type`, `*`, `as`, restarting from any `export` that breaks the
sequence. Comments are trivia and the scanner skips them, which is the
whole reason for the change.

Counted rather than asserted, over the 2,236 files this census reads:
1,005 carry an asterisk and reach the scan, which costs 118 ms for all of
them together; exactly one matches, this file, through its own fixtures.
The docstring says the `*` pre-check is not a rarity filter — a block
comment carries an asterisk, so most files with any comment reach the
scan — rather than implying the shape is rare enough not to matter.

The timeout this PR exists to fix is unaffected: under full-suite load
the slow case runs in 594 ms against its 5 s budget.

Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb

* test(mobile): keep the namespace re-export scan in sync across template substitutions

A bare scanner loop loses its place after `${...}`. The closing brace has
to be re-scanned as a template token, or everything after it is tokenised
as ordinary source and the rest of the file is read wrongly — so a file
with an interpolated template anywhere before a namespace re-export was
dropped again, which is the hole this filter exists to close.

The loop keeps `preProcessFile`'s own stack: push on `TemplateHead`, push
and pop plain braces inside a substitution, and on the brace that closes
one re-scan, popping only for a tail. Tokens inside a substitution cannot
be this declaration, so the matcher rests there and the work is staying
in step.

Red first: the interpolated-template spelling failed, naming itself. Two
more fixtures pin the stack rather than a flag — a brace inside the
substitution, and a template inside it. The braced one was red too; the
nested one passed before and is here because otherwise nothing exercises
that branch. Twelve shapes were probed against the new loop, including an
unterminated template and an `export * as` written inside substitution
text, which must not match.

Counts move, and the new number is the right one: 1,005 of 2,236 files
reach the scan, costing 173 ms together, and none matches — including
this file, whose spellings sit inside template literals and are template
text rather than tokens. The previous count of one was this file matching
through its own mis-tokenised fixtures.

Under full-suite load the slow case runs in 479 ms against its 5 s budget.

Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb
2026-09-21 07:42:43 -04:00
..

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 run check:tests-typecheck
pnpm lint
cd ..
pnpm typecheck:node

tsc --noEmit reads tsconfig.json, which excludes test files so Metro never bundles them. tsconfig.test.json puts them back, and pnpm run typecheck:tests shows their errors in full. check:tests-typecheck is the gate over it: a ratchet against tests-typecheck-baseline.txt, the 127 test files that do not typecheck yet. It fails when a file that checks today stops checking, and when a baseline entry starts checking (prune it with node scripts/check-tests-typecheck-ratchet.mjs --prune). The list may only shrink.

The same gate censuses the program first: every *.test.ts(x) on disk must be in it, or named in the script's TESTS_OUTSIDE_PROGRAM with a reason. Without that, a test excluded from tsconfig.test.json — or a Foo.test.tsx shadowed by a Foo.test.ts beside it, which a wildcard include drops for the higher-priority extension — would leave the ratchet silently.

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_CHAT_AGENT=omp — with MOCK_NATIVE_CHAT=1, present an OMP tab and four decoded transcript messages, including a tool call and result, instead of the default Claude scenario. It deliberately omits transcriptPath to exercise legacy-hook readability discovery; current OMP hooks may report a path.
  • 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