Jinwoo Hong
bfcbc6feee
* fix(mobile): contain the older-history page's rejection at its own boundary
`loadEarlier` in `use-mobile-native-chat-session.ts` runs its read inside a
fire-and-forget `void (async () => {...})()` with a `finally` and no `catch`, so
every throw inside it reaches the document as an unhandled rejection. Two
mechanisms, both certified by
`matrix-session.native-chat-page-nativechat.readsession-1`:
- The awaited `nativeChat.readSession` request rejecting — a transport drop
(`transport failure`, and the empty-message shape) or the client abandoning
the in-flight page at teardown (`Connection closed`).
- `'error' in result` on an accepted success whose result was absent or null.
The operation's reader is `z.unknown()` on purpose, because the reply is a
union, so `rpcSuccessResultOrSkip` accepts `undefined` and `null` as results
and `in` throws a TypeError on both before the page is ever read.
Same class as the diff-comments fix (#22111) for the first mechanism and the
catch goes at the same boundary — nothing awaits this promise, so there is no
caller a swallowed rejection could hide from. It differs in the second: that
TypeError is a defect in the payload read rather than an uncaught rejection, so
it is fixed by checking the shape before `in` rather than by the catch, which
would only have hidden it.
Neither mechanism moves an observable value: the `finally` already cleared
`loadingEarlier`, and both new returns land where the throw did, before the
window is touched. A refused page and a failed page now leave the delivered
window alone, which is this operation's declared skip policy.
`mobile-native-chat-page-rejection.test.ts` captures the process
`unhandledRejection` handler for the run and reads it; the three cases fail on
main with exactly `transport failure` and the two `Cannot use 'in' operator`
TypeErrors.
Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb
* test(mobile): re-record the corpus without the older-history page's rejections
The corpus certified the five unhandled rejections the commit before removes, so
the golden had to move with them. Scoped the same way as #22111: `baseline`
bumped by editing that one line, then `--record`. The recorder refuses to run on
any other tree, and the pin guard's `reproduce` replays the corpus against the
pinned tree with only the recorder overlaid, so a product fix cannot be recorded
without the bump.
788 files, 824 insertions, 938 deletions. Every line classified:
- `baseline`, 787 files (786 goldens + `pilot-scenarios.json`) and nothing else
in any of them. One distinct changed line across all of them.
- `matrix-session.native-chat-page-nativechat.readsession-1.json`, the only
golden with a substantive change (37 insertions, 151 deletions). Its value
pool goes 34 -> 24: ten entries leave, none is added, and no surviving entry's
content changed.
Inside that golden, three things move and each follows from the effects going:
- **Effects.** Five `unhandled-rejection` values leave the pool — the two
TypeErrors (`02fb8ef75b28` undefined, `74a36d9b608f` null), the two transport
rejections (`b5f9fdfa5b32` transport failure, `b388251f574a` empty) and
`14095708382e` Connection closed — and the 16 checkpoints that carried them
now read `"effects": []`: four each on `result-absent`, `result-null`,
`transport-rejection` and `transport-rejection-no-message`.
- **One checkpoint is gone.** `native-chat-page-earlier.prelude:cleanup`.
`run-recording.ts` emits `cleanup` only when teardown produces an effect, and
the abandoned page's `Connection closed` rejection was the only one it
produced. Nothing left to observe, so no checkpoint. The two values only that
checkpoint referenced leave with it: `980096177097`, its rejected
`nativeChat.readSession#1` settlement, and `91a7795fa0ab`, its
`nativeChat.unsubscribe#1` frame.
- **Renumbering, on `payloads` at 12 checkpoints.** Ordinals are one counter per
run, so dropping an effect shifts everything after it: `nativeChat.subscribe#2`
5 -> 4, `nativeChat.unsubscribe#1` 6 -> 5, `nativeChat.unsubscribe#2` 7 -> 6.
Each shifted frame is byte-identical to the entry it now points at apart from
the ordinal, and every one of those entries was already in the pool — the arms
that never rejected recorded them. That is why nothing is added and the three
higher-ordinal twins simply go unreferenced.
`state`, `sender` and `settlements` are unchanged on every surviving checkpoint,
so no observable value moved. `recorderSha256`, `adapterSha256` and
`scenarioSha256` all hold, and `HEAD_EFFECT_SHA256` in
`mobile-session-route-parity.test.ts` does not move: that pin walks
`MobileSessionRouteScreen` and its named expansion hooks, and
`useMobileNativeChatSession` is in neither set.
`baseline` is a branch commit, so a repin to main follows the squash.
Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb
* test(mobile): build the page-rejection client double with one assertion
The changed-code quality gate read two assertions in the new file and the
second carried no rationale. There is only one shape here the types cannot
express, so there is only one cast: `RpcSuccess` requires `result`, which is
what makes the matrix's `result-absent` reply untypeable. The sender goes into
the object literal the cast already covers.
Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb
* test(mobile): repin the corpus to the head its product tree matches
The commit before moved a file under `mobile/src`, and the recorder guards that
whole tree rather than only what it loads: `scripts/rpc-recording.mts` refuses
to run when `git diff <baseline> -- mobile/src src/shared` is non-empty. Left
alone, the pin would name a tree that still reproduces the corpus but that no
one could record against without repinning first.
788 files, 788 insertions, 788 deletions, and `baseline` is the only distinct
changed line in any of them. Nothing else moved, which is also the determinism
check: a second full record against a product tree that differs only by a test
file the drivers never load reproduced all 787 goldens byte for byte.
Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb
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 port8081.
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
- Open Orca desktop.
- Go to Settings > Mobile.
- Scan the pairing QR code from the mobile app.
- 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
- Install Expo Go from Google Play
- Run
pnpm start, scan QR with Expo Go - For native modules:
pnpm exec expo run:android - Run with
pnpm start --dev-client
iOS Simulator
- Install Xcode from the App Store
- Run
pnpm start --iosto 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.ts—DESKTOP_PROTOCOL_VERSION,MIN_COMPATIBLE_MOBILE_VERSIONmobile/src/transport/protocol-version.ts—MOBILE_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— withMOCK_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 omitstranscriptPathto 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(defaultorca-mock-send-modein the system temporary directory) —accept(default) accepts the send,errorfails it withmobile_input_floor_unavailable, anything else reports the send as rejected.MOCK_TERMINAL_LIST_MODE_FILE(defaultorca-mock-terminal-list-modein the system temporary directory) —omitreturns an empty terminal list,otherreturns a list that omits the chat handle, anything else lists it.MOCK_TERMINAL_STREAM_MODE_FILE(defaultorca-mock-terminal-stream-modein the system temporary directory) —deadanswers a subscribe withsubscribedthenend(a gone PTY), which is what exercises the rearm bound and terminal prune; anything else streams normally.
Connecting to Real Orca
- Start Orca desktop with WebSocket transport enabled
- In Orca, go to Settings > Mobile and scan the QR code with this app
- 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