Commit Graph

178 Commits

Author SHA1 Message Date
Ignacy Łątka cee2d69a4f test(flows): point the scope-snippet doc test at references/selectors.md 2026-07-27 22:04:20 +02:00
Hubert Gancarczyk 5ac69349f0 feat(flow): CSS combinator scopes for flow selectors (#569)
## What

Adds the CSS combinators to flow selectors, read off frames. Any action
or condition can now scope its matches by where an element sits relative
to another:

```yaml
- tap:    { text: Delete, within: { id: profile-card } }          # CSS "A B" — inside that container
- tap:    { role: Switch, next: { text: Wi-Fi } }                 # CSS "A + B" — the nearest follower
- assert: { visible: { role: Button, after: { text: Danger zone } } }  # CSS "A ~ B" — any follower
- assert: { hidden: { any: true, within: { id: empty-state } } }  # CSS "*" — the universal selector
```

| Scope | CSS | Reads as |
| --- | --- | --- |
| `within: <sel>` | `A B` | the match's frame sits inside the scope
element's frame |
| `after: <sel>` | `A ~ B` | the match follows the scope element in
reading order |
| `next: <sel>` | `A + B` | as `after`, narrowed to the nearest follower
of each anchor |

Plus `any: true` — the CSS `*` universal selector, accepted only
alongside a scope and never beside `text`/`id`/`role`.

The child combinator `>` has deliberately **no analog**: flow trees
flatten to leaves under one synthetic root, so parent/child structure
does not survive to replay.

## How

- **Geometric, not ancestry-based.** Frames are what survives
flattening, so every scope is resolved from them by `findAll` in
`ui-tree-match`. The synthetic root never counts as a scope element, and
every relation requires a *distinct* node (nothing scopes itself).
- **Reading order is row-band aware.** An element follows the anchor
when it starts below the anchor's bottom edge, *or* shares its row band
and sits entirely to its right. That band rule is what makes `{ role:
Switch, next: { text: Wi-Fi } }` resolve the Wi-Fi row's own switch even
though the taller switch's frame starts a couple of pixels *higher* than
the label's — a raw top-y comparison gets that backwards. `followKind`
is the single classification both the follower test and the nearest-pick
grouping read, so they cannot disagree.
- **`next` is the union over anchors**, exactly as CSS `A + B` is: three
rows on screen give three switches, one per label.
- **Scopes compose and nest**, capped at `MAX_SELECTOR_SCOPES` (6)
counted across the whole relation *tree* — a size bound, not a depth
bound, because three relations branch and the runner's loose-alternative
expansion is exponential in the bare-string scopes it finds.
- **Flow-YAML only.** `await-ui-element`'s strict schema rejects
`within`/`after`/`next`/`any`, so a scope can never be silently dropped
on that path.
- Adding a fourth relation is a **compile error**: `RELATION_RESOLVERS`
is a `Record` keyed by the relation union, so a new scope cannot be
wired through parse/serialize/reporting and then ignored by the match
engine.

## Testing

- **Unit:** full tool-server suite green — **3006 passed / 1 skipped**.
New coverage in `ui-tree-match.test.ts`, `flow-utils.test.ts`,
`flow-selector-scopes.test.ts` (renamed from
`flow-within-selector.test.ts`, now covering all scopes) and a new
`flow-skill-docs.test.ts` that parses every YAML snippet in the skill so
the docs cannot rot. Each fix is mutation-checked: reverting it fails at
least one test.
- **Real-device E2E** (Pixel 3a, Bluesky on Metro 8081, via a branch
tool-server): three flows, 20 steps, all green — geometric ordering both
ways, two `text` asserts that pin `next`'s pick *by identity* out of
five candidates, empty-scope `hidden` semantics, and two observable taps
(`next`-scoped and `any: true`-scoped) that navigated to the *adjacent*
topic rather than the anchor's own.
- **iOS not covered.** Native-devtools does not attach on either booted
simulator in this environment, so *every* flow selector fails there — an
unscoped `{ text: "Video" }` fails identically. Verified environmental,
not caused by this branch: the globally-installed argent reports the
same, direct `SIMCTL_CHILD_DYLD_INSERT_LIBRARIES` injection also fails
to connect, and it survives a forced simulator reboot on both iOS 18.3
and 26.5. Worth re-running the iOS leg once that is healthy.

## Notes for reviewers

Two deliberate deviations from CSS, both documented in the skill:

- **`next` is looser than `+`.** Where `A + B` matches nothing unless
the immediate sibling is a `B`, `next` keeps looking and returns the
nearest match further on. That is what makes it survive the wrapper and
spacer nodes a flattened tree is full of — but a row *missing* the
control you asked for resolves to the next row's rather than failing.
Happy to switch to strict `+` semantics if the loud failure is
preferred.
- **"follows" is not transitive.** Against a tall anchor an element can
follow something that follows the anchor without following it directly,
so nesting `after` scopes is not the same as chaining `~`.

Other things worth a look:

- `nearestAfter` and `afterTester` are direct scans, not indexed. An
earlier sorted index was a *second* implementation of the nearest rule
and the two disagreed on frames near the tolerance; it also measured
2-13x slower than the scan on realistic shapes, with a prune that
provably never fired. The quadratic tail is documented with measured
numbers: 1.2 ms for a single-anchor `next` at the 12k-node tree cap,
~555 ms only when the anchor selector matches essentially every node.
- A bare-string *anchor* cannot self-correct the way the loose fallback
usually does — a decoy `testID` matching your anchor text wins the
identifier pass whenever anything sits after it. The skill tells authors
to spell sibling anchors as maps.
- `MAX_SELECTOR_SCOPES = 6` replaces the previous
`MAX_SELECTOR_WITHIN_DEPTH = 10`, so a `within` chain deeper than 6 that
parsed on the earlier commits of this branch now rejects. Nothing
released depends on it.

---------

Co-authored-by: Hubert Gancarczyk <claude-hubert.gancarczyk@swmansion.com>
2026-07-27 18:25:27 +02:00
Jakub Piasecki e23f0e285e feat(flow): snapshot cropOn for single-element visual diffs (#516)
`snapshot` gains an optional `cropOn: <selector>` — diff one element's
region instead of the whole screen:

`- snapshot: { name: cart-total, cropOn: "Order summary" }`

- The selector resolves like a directive target: settled tree,
auto-wait, the standard
not-found failure. Selector-only — no point form (a point has no extent
to crop to).
- The frame resolves **before** the capture, and the **cropped** image
is what gets
compared, stored as the baseline, and reported as the `current`
artifact. The pixel
rect is the normalized frame × capture size; the crop is a pngjs
`bitblt` written to
  a swept scratch dir and registered only when a failure returns it.
- The baseline key stays on the **full** capture's WxH (device-class
identity), so the
previously unreachable `dimensionMismatch` guard becomes load-bearing:
an element that
grew or shrank fails with "nothing was compared" plus a
crop-fixed-size-containers
hint. Deliberately strict — a 1px layout drift fails on dimensions, not
content (the
  same tradeoff as Playwright element screenshots).
- A tree-source outage while resolving `cropOn` errors the step instead
of degrading to
  a full-screen compare against a cropped baseline.
- No tool-schema changes; `snapshotKey` and `--output` behavior ride
along unchanged.

Tests: parse/serialize round-trip + rejection cases, and runSnapshot
coverage with real
PNGs (crop dims, key vs. content, artifact retention/sweep, unresolved
selector, abort,
size-drift message, sub-pixel region).
2026-07-27 10:07:49 +02:00
Jakub Piasecki 6a53e66a96 feat(flow): rotate directive (#546)
# feat(flow): rotate directive

Adds a selector-targeted two-finger rotation directive to flows:
`rotate: { on?, by }`. `on` resolves like `tap` (settled tree +
auto-wait); omitted, the rotation centers on the screen. `by` is
degrees, positive = clockwise. Distinct from `tool: rotate`, which
changes device orientation — the docs and step labels call this out.

## Design

**One continuous gesture, fixed pace, no duration option.** Fingers
orbit at ~90°/300 ms; duration derives from the angle. Unlike pinch
there is no sub-gesture chaining — any angle dispatches as one sweep, so
the angular delta is exact with no settle delays. `by` is parse-bounded
to ±3000°: the largest sweep the 10 s single-gesture envelope delivers
at that pace, derived from the constants rather than picked as policy —
rejected at parse, never silently clamped. A consequence embraced here:
frame count always scales with the angle, so a speed-sensitive recording
stays a raw `tool:` step (the create-flow skill's polish list covers the
conversion).

**Fixed centroid, constant physical radius.** Drifting the centroid
would couple pan into the turn; growing the radius would couple pinch.
Both stay fixed — the trade is a smaller orbit near edges and small
targets, in exchange for a pure rotation.

**Physical circle, not a normalized-space ellipse.** A single normalized
radius on a non-square screen traces a physical ellipse, coupling an
unintended pinch into every turn. `gesture-rotate` grows optional
per-axis `radiusX`/`radiusY` (fractions of width/height with `radiusX·W
= radiusY·H`), and the flow tree adapters surface screen dimensions via
an optional `screen` field on `DescribeTreeData` so the directive can
compute the aspect. Missing dimensions fail soft to the legacy
single-radius call rather than erroring.

**Placement reuses pinch's edge model.** The initial finger axis
(horizontal or vertical) is scored against the same per-platform
system-edge guards, preferring a start parallel to the nearest violated
edge and staying inside the target's axis-matching span. Guards only
score placement — they never shrink the radius, and a violated guard is
attempted, never rejected. The only geometry failure is no positive
on-screen orbit radius.

**Abort correctness.** `gesture-rotate` now honors `ctx.signal`: each
frame checks it, lifts the synthetic fingers with a terminal Up (so a
cancelled run doesn't leave them held on the glass), then throws with
name `AbortError`; the directive maps a mid-gesture abort to the run's
aborted skip rather than a step failure.

**Explicit `inputSchema`.** The radius requirement is a zod `.refine()`
cross-field rule, which `z.toJSONSchema` drops — so the tool ships a
derived schema plus an explicit `anyOf` (`radius` or
`radiusX`+`radiusY`) to keep invalid calls rejected at the schema layer.

**Platform rejections.** Vega is remote-driven (no touch) and Chromium
has no rotate-gesture idiom at all — both fail upfront with guidance to
drive the app's rotate controls directly.

## Tests

Unit tests cover the geometry module (duration derivation, candidate
construction, aspect handling, edge-guard ranking), the directive
end-to-end against a fake device, and `gesture-rotate`'s per-axis radii
and abort path.
2026-07-24 13:18:23 +02:00
Ignacy Łątka f85d3843aa feat(screen-recording): draw touch gestures into the recording (#549)
## What

Draws the touch gestures argent drives directly into the screen
recording, so a captured video shows **where** each interaction landed
instead of a UI reacting to an invisible finger:

- a pulse marks each **tap**
- a fading comet trail follows a **swipe / drag**
- paired markers show the two contact points of a **pinch / rotate**

On by default; pass `showTouches: false` to `screen-recording-start` for
a raw, overlay-free capture.

## How

simulator-server already has a touch visualizer behind its `pointer`
cargo feature (the binary argent bundles ships with it). It renders the
markers into the very MJPEG stream this recording pipeline already
consumes — nothing is composited host-side, and it's driven by the touch
events argent already sends. This PR just turns it on for the life of a
recording:

- `screen-recording-start` builds a small `PointerControl` from the
resolved simulator-server handle and hands it to `startCapture`.
- The overlay is enabled right after the encoder goes live (so the first
interaction is already drawn) and **restored to off** when the capture
ends — stop, time-limit cap, encoder crash, or session teardown all run
the same disable path, so it never outlives the recording it was enabled
for.
- Two thin client helpers (`setPointerVisible`, `setPointerTrail`) POST
to simulator-server's `/api/pointer`. They're best-effort: a build
without the feature (or a remote sim) just yields a `warning` at stop
and a normal overlay-free video, never a failed recording.

## Verification

- **Unit** — `screen-recording.test.ts`: 49 pass, incl. 10 new covering
enable-at-start / disable at stop, cap, unexpected exit, and dispose;
the `pointerFailed` warning; the no-control path; and the `/api/pointer`
wire format (`{show}` / `{trail}`, ok/error/throw handling).
- **Static** — `tsc` (src + `tsconfig.test.json`), eslint, prettier,
full workspace build all clean.
- **E2E** — drove the real tool-server → the bundled (production)
simulator-server on an iOS 18.5 sim:
- `showTouches: true` + a slow swipe → a translucent pointer bubble is
rendered onto the screen at the touch point in the recording.
- identical swipe with `showTouches: false` → paging still happens, **no
bubble** — proving both the toggle and that stop restored the overlay to
off (the control clip never re-enables it, yet draws nothing).

---

Stacked on #548 (static-frame trimming) → base branch
`feat/screen-recording-trim`. Review after that merges.

---------

Co-authored-by: Ignacy Łątka <claude-hubert.gancarczyk@swmansion.com>
2026-07-23 22:32:51 +02:00
Ignacy Łątka 82f6eb16b0 feat(screen-recording): trim static stretches out of the recording (#548)
> Stacked on #517 (`feat/screen-recording`). Review/merge that first;
this PR's diff is against that branch.

## What

Trims stretches where the screen doesn't change out of the recorded
video. A recording left running across waits, slow navigation, or agent
thinking time used to come back padded with dead air; now a long session
with only brief activity comes back as a short clip.

## How

The frame pump already re-emits the last frame on a wall-clock schedule
to keep the timeline honest. This adds a change detector on top:

- Each frame is compared to the last one **byte-exact** (a reference
check short-circuits the common "no new frame arrived" case, so only
genuine arrivals pay the compare). Exact byte equality is stronger than
a hash — no collisions — and flags a change down to a single pixel,
matching "something moved, even by a couple of pixels."
- The first second of every still stretch is kept (pauses read
naturally), then unchanged frames are dropped until the screen moves
again.
- Active stretches still play at real time: the wall-clock pacer is
re-anchored whenever a dead stretch is skipped, so the gap yields no
output frames rather than a catch-up burst of the next frame.

On by default. `trimStatic: false` on `screen-recording-start` keeps a
faithful real-time recording (e.g. to measure how long something took on
screen). `screen-recording-stop` now returns the trimmed length as
`durationMs`, plus `wallClockMs` and `trimmedMs` when trimming removed
anything.

## Verification

- **Unit**: 39 tests in `screen-recording.test.ts` (7 new trim cases:
default-on, grace-window kept, no-trim control,
resume-the-moment-the-screen-changes,
byte-identical-new-frame-stays-trimmed, duration reporting,
fields-omitted-when-off). Full tool-server suite green (2817). `tsc
--build`, `typecheck:tests`, eslint, prettier clean.
- **E2E on a live tool-server (iOS 18.6 sim)**:
- 23s idle-heavy session (motion → 15s idle → motion) → **1.47s** clip,
`trimmedMs` 21930, with the real transitions intact (44 distinct frames
— above the 30-frame grace floor, proving post-grace motion is kept). A
`trimStatic:false` control of the same pattern returned the full 23s /
691 frames.
- 8s continuous burst-motion session → **2.1s** across multiple motion
bursts (not collapsed to the 1s floor).
- **Cross-check**: ran ffmpeg's own `mpdecimate` (duplicate-frame
detector) over the same untrimmed footage — it kept ≤ what this trim
keeps, confirming the trim is faithful, never over-aggressive
(byte-exact is deliberately more conservative than mpdecimate's
near-duplicate heuristic, so smooth animation is preserved while only
frozen stretches are dropped).
2026-07-23 21:45:42 +02:00
Ignacy Łątka 2251c7cf46 feat(screen-recording): screen-recording-start/stop tools with per-call stop reminders (#517)
## What

Adds a `screen-recording-start` / `screen-recording-stop` tool pair
(naming follows `native-profiler-start/stop`) that records the device
screen to an mp4 and returns it as a downloadable artifact.

Capture runs through **simulator-server** — the same backend
`screenshot` and every interaction tool already drive. simulator-server
publishes the device screen as an MJPEG stream (`/stream.mjpeg`), so
recording needs no platform-specific recorder: the tool-server
subscribes to that stream, paces the frames onto a fixed 30 fps
timeline, and pipes them into a single ffmpeg process that encodes — and
watermarks — straight to the final mp4. The stream is multi-subscriber,
so a preview window can stay open on the same device while recording.

- **One path for every device simulator-server drives** — iOS
simulators, Android emulators, and physical Android devices.
- **Native resolution, constant 30 fps** — h264, `+faststart`, no
post-processing pass.
- Session state lives in a per-device `ScreenRecordingSession` blueprint
(mirrors the native-profiler session): time-limit cap with
auto-finalize, unexpected-exit recovery (a capture that ended on its own
is still retrievable via stop), always-startable state reset on stop,
and dispose-on-shutdown cleanup through the registry.

## Why the frames are paced host-side

A device only emits a frame when the screen **changes**. Pointing ffmpeg
straight at the stream therefore produces a video whose length is the
sum of the moments something moved — a still screen collapses to a
fraction of a second — and an ffmpeg blocked on a silent socket does not
answer a stop signal promptly either (measured: 12 s late). Re-emitting
the last frame on a wall-clock schedule fixes both: **video duration
always equals real elapsed time**, and stop is a stdin EOF that
finalizes in ~60 ms. Duplicate frames cost almost nothing once encoded
(a 10 s recording of a static screen is ~1 MB).

## Finishing pass folded into capture

The Argent watermark (logo + `By @swmansion`, bottom-left, sized
relative to the frame) is stamped by the same ffmpeg invocation that
encodes the capture, so there is no second encode and no temp
intermediate. Its colour is chosen **per pixel** from the background
luma underneath it — the white logo over dark areas, a runtime-derived
near-black copy over light areas — so it keeps maximum contrast against
whatever is behind it. It sits at 20 % opacity and is opt-out via
`argent disable video-watermark` (read when the recording starts). Frame
geometry comes from the first JPEG's SOF header, so no `ffprobe` is
needed.

ffmpeg is now the recorder rather than an optional finisher, so a
missing ffmpeg fails `screen-recording-start` up front with an install
hint instead of silently degrading the output at stop time.

## Reminder plumbing

While a recording is running — or ended on its own but was never
retrieved — **every** tool result carries a `note` telling the agent the
recording is still going and how to stop it. It rides the same `note`
field as the update reminder but is per-call and unsuppressed; both
notes compose when they coincide. The note text switches to "already
ended, retrieve the file" once the cap fires or the capture dies.

## Skill

New `argent-screen-recording` skill (+ routing stanza in
`rules/argent.md`): documents the start → interact → stop workflow and
instructs the agent to schedule its own reminder/wakeup for the expected
end of the recording immediately after starting one (harness reminder
tool if available, otherwise a background `sleep` whose completion
notification pulls it back). Scores 10/10 on `scripts/grade-skills.mjs`.

## Verification

- Unit: 45 tests across `screen-recording.test.ts`,
`mjpeg-stream.test.ts`, `watermark.test.ts`,
`http-recording-note.test.ts`; full tool-server suite **2808 tests / 280
files green**; `tsc --noEmit -p tsconfig.test.json`, root `tsc --build`,
eslint, prettier all clean.
- E2E on a live tool-server (`POST /tools/...`), driving real
interactions between start and stop:
- **iOS sim** (iPhone 16 Pro Max, iOS 18.5): 1320×2868 h264,
`r_frame_rate=30/1`, 338 frames, container duration 11.27 s vs reported
`durationMs` 11314 — **within 50 ms of wall clock**. Extracted frames
show real screen content (mid app-switcher animation) with the watermark
rendered light-over-dark.
- **Android emulator** (Pixel 3a, API 34): 1080×2220 h264, 30 fps, 353
frames, duration 11.77 s vs `durationMs` 11793 — within 30 ms. 512 KB
for a mostly-static home screen.
- **Static screen** (no interaction at all, 10 s): 300 frames, duration
exactly 10.000 s — the case the previous `recordVideo` implementation
reduced to ~0.03 s.
- **Long silence then activity** (15 s untouched, then an app launch):
stream survived, no warning, frames after the silence show the new
screen. This caught a real bug during review — the connect timeout was
also acting as a socket *inactivity* timeout and tore the stream down at
10 s of stillness; fixed and covered by a regression test that fails
without the fix.
- **Time-limit cap**: `timeLimitSeconds: 5` self-finalized at 4.97 s /
149 frames, the per-call note flipped to "already ended (it hit its 5s
time limit)", and a stop issued 11 s later still returned the video with
the matching warning.

## Not supported (capability-gated with clear errors)

tvOS simulators, physical iPhones, Chromium apps, Vega, and remote
(`remote:`-prefixed) simulators — none of them expose a readable frame
stream.

---------

Co-authored-by: Ignacy Łątka <claude-hubert.gancarczyk@swmansion.com>
2026-07-23 21:14:37 +02:00
Aayush Gautam 3795cb84fb fix(ios-profiler): stop native-profiler-stop being aborted mid-packaging (#529)
## Problem

`native-profiler-stop` fails with `No active native profiling session
found. Call native-profiler-start first.` while xctrace is still
recording — #248, #250, #330. Those were closed on the 0.12.1
`--all-processes` workaround (#380), which fixed trace finalization but
not this.

The tool isn't declared `longRunning`, so the MCP adapter applies its
per-request timeout:

```js
fetchTimeoutMs: meta?.longRunning ? null : FETCH_TIMEOUT_MS,   // mcp-server.ts:222
```

A stop that runs past 30s is aborted and retried (`MAX_RETRIES = 4`).
The retry runs against the session state the first call has already
cleared, hits the `!api.profilingActive` branch and throws. The message
points at session tracking; the actual failure is the timeout.

Every failed stop I have logs for lands at 30–34s: `durationMs: 33639`
in [#330](https://github.com/software-mansion/argent/issues/330), and
30276 / 30605 / 31019 / 31914 locally.

Stop can't fit in 30s on Xcode 26.4+. Since #380 the capture is
host-wide rather than app-scoped, so the bundle is much larger — ~55MB
per 10s of recording here, 385MB for 90s — and xctrace needs ~22s to
package even the 10s case before the four export passes start.

`STOP_GRACE_MS` has the same problem from the other side: at 30s xctrace
is SIGTERM'd mid-package, and the bundle it leaves behind fails to
export.

## Fix

Declare the tool `longRunning`, and raise `STOP_GRACE_MS` to 300s. The
grace is a ceiling rather than a fixed wait — a fast package still
returns as soon as xctrace exits — so this only changes captures that
were previously killed.

With both applied a 90s capture stops and exports cleanly in ~2–4 min,
and a 40s capture returns inline.

## Note

The abort-and-retry sequence is inferred rather than captured directly.
What's observed: `MAX_RETRIES = 4`, the uniform ~30s durations, and
`tool-server.log` showing the `did not respond to SIGINT` warning —
written after the throw site — logged 184ms *before* the failure was
returned. One execution can't produce that ordering.

## Testing

- `npm run build` and eslint clean on changed files
- `npm test -w @argent/tool-server` — 2727 tests / 273 files pass
- Verified on Xcode 26.5 / iOS 26.5 simulator against a bridgeless RN
app: start → interact → stop → analyze now returns a populated report
with `errors: {}`
2026-07-23 18:32:44 +02:00
Jakub Piasecki f32659df31 feat(flow): pinch directive (#545)
Adds a selector-targeted pinch-zoom directive to flows: `pinch: { on?,
scale }`. `on` resolves like `tap` (settled tree + auto-wait); omitted,
the pinch centers on the screen. `scale > 1` zooms in, `< 1` zooms out.

## Design

**Options-map only, no bare form.** `tap: "Map"` is unambiguous; `pinch:
"Map"` isn't (in or out?), so the parser requires `{ on?, scale }` and
rejects a bare selector with authoring guidance.

**Validity checks, not policy caps.** `scale` must be finite, > 0, and ≠
1 (a no-op scale is almost certainly a mistake) — but there is
deliberately no magnitude cap. An extreme scale decomposes
logarithmically into equal-ratio sub-gestures of ≤4× each, chained with
a 250 ms recognizer-reset delay (`scale: 1e6` is just 10 gestures).

**Pure geometry module.** All placement math lives in
`flow-pinch-geometry.ts` as deterministic data-in/data-out functions (no
device access), so tests drive it with synthetic centers, spans, and
edge guards. Per sub-gesture, a horizontal and a vertical candidate are
built from the axis-matching target dimension (normalized X and Y are
different units, so never `min(width, height)`), and the better one is
dispatched.

**Edge safety scores, it never rejects.** Per-platform system-edge
guards (wider on Android's back-gesture zones) demote candidates in
ranking but never fail a step: viable travel beats edge safety (a
risky-but-perceptible gesture beats a safe no-op the recognizer
ignores), then fully-safe with the most travel, then motion parallel to
the violated edge (edge swipes need motion *away* from the edge). Guards
are resolved once per directive and passed as data — the seam for a
future per-device query. The only geometry failure is literally zero
on-screen finger travel; a tiny target is still attempted.

**Centroid drift near edges.** When expanding fingers would leave the
screen, the centroid drifts inward — only on the moving axis, and only
as far as needed. `gesture-pinch` grows optional
`endCenterX`/`endCenterY` to interpolate the centroid alongside
separation; omitted, behavior is unchanged.

**Open-loop by design.** There is no "current zoom" to read back, so the
directive doesn't try to verify the multiplier — flows assert on the
resulting UI instead.

**Platform rejections.** Vega is remote-driven (no touch input) and
Chromium has no uniform pinch-zoom mapping for a desktop app (ctrl+wheel
or app-specific controls) — both fail upfront with guidance to drive the
app's zoom UI directly.

## Tests

Unit tests cover the geometry module (decomposition, candidate
construction, edge-guard ranking), the directive end-to-end against a
fake device, and the `gesture-pinch` centroid-drift interpolation.
2026-07-23 07:44:26 +02:00
filip131311 7f85f996aa fix(tool-server): defer to an existing server on EADDRINUSE instead of crash-looping (#533)
## Summary

Fixes **bucket B** of the 0.16.0 crash telemetry — the `toolserver_bind`
/ `EADDRINUSE` restart loop. It's the largest crash **volume** (~817
events, one machine alone = 785) even though it's a narrow user set
(10). Companion to #531 (which fixed the widespread multi-user bucket
A).

## Root cause (reproduced live)

The main HTTP listener's `server.on("error")` handler routed **every**
bind error through `crashShutdown` (exit 1). When a second tool-server
starts on an already-owned port, that exit just feeds a supervisor
respawn → re-bind → crash, forever.

The telemetry signature was puzzling: all these crashes are
`crash_phase=serving` with ~1s uptime and **0 tool calls** — i.e. the
listener *bound successfully* and then died. I reproduced it: on macOS,
a **second tool-server process's** `listen()` momentarily **succeeds**
(the `listening` callback runs → `listening=true` → phase `serving`),
and **then** the server emits an asynchronous `EADDRINUSE`. So the
redundant instance binds, immediately errors, crashes, and the
supervisor loops it (~1s each, 785× on one machine).

Live A/B on the compiled `dist` (isolated port, telemetry disabled),
server A up then a second server B on the same port:

```
buggy (current 0.16.0):  B: "Tools server listening ..."  → "Failed to bind ... EADDRINUSE"  → exit 1  (→ respawn loop)
fixed:                   B: "Tools server listening ..."  → "deferring to it (redundant instance)" → exit 0
```

A survives in both.

## Fix

Handle `EADDRINUSE` specifically instead of crash-looping:

- Probe the port for a healthy argent tool-server (`GET /tools` → 200,
or 401 when a token is configured).
- **If a healthy peer answers**, this instance is redundant → shut down
**cleanly** (`shutdown(0)`) and defer to it. This removes it from the
`reason:"crash"` restart-loop population entirely.
- **If nothing healthy owns the port** (a foreign holder, or a wedged
peer that doesn't answer within the probe timeout) → still crash, so a
genuinely stuck port stays visible.
- `EACCES` and all other server errors crash exactly as before.

It also corrects the now-false comment claiming these crashes are phased
`startup` ("the listen callback never ran"). Telemetry and the live
repro prove the bind succeeds first, so `listening=true` and the phase
is genuinely `serving`.

## Testing

- **New unit tests** for `probeArgentToolServer`: peer answering 200 or
401 → `true`; foreign 500, connection-refused, and wedged/timeout →
`false`.
- Full tool-server suite **2731 green**; `tsc` + `eslint` clean.
- **Live A/B** above, on the built dist.

## Note on scope

This is a robustness fix that breaks the loop for the redundant-instance
case (the dominant one). The precise reason macOS lets a second
process's bind succeed-then-error asynchronously (vs. failing
immediately, as same-process contention does) is a kernel/loopback
timing detail; the fix does not depend on it — any `EADDRINUSE`,
immediate or deferred, now defers-or-crashes deterministically rather
than hot-looping.
2026-07-22 16:56:54 +02:00
Ignacy Łątka 7400179b5b Windows support: Android + Chromium host control plane (#421)
## What

Makes Argent run on Windows. iOS Simulator is macOS-only (Apple), so on
Windows that means the **Android + Chromium** host control plane. The
blocker was twofold: (1) no Windows `simulator-server` binary, and (2)
POSIX-only assumptions in the tool-server.

Companion radon PR builds the binary and runs the Android emulator E2E
on Windows: software-mansion/radon#134.

## Changes

**Windows-aware tool-server / resolver / bundling**
- New shared `commandOnPath()` helper — `where` on Windows, `command -v`
via `/bin/sh` on POSIX. `android-binary`, `check-deps`, and `vega-cli`
previously hardcoded `/bin/sh`, which never matches on Windows.
- `android-binary`: append `.exe` to `adb`/`emulator` in the
`$ANDROID_HOME` fallback; probe `%LOCALAPPDATA%\Android\Sdk` (Android
Studio's Windows default).
- simulator-server resolver + dispatcher + `bundle-tools` +
`download-simulator-server.sh`: ship and resolve `simulator-server.exe`
on `win32` (new `simulatorServerBinaryName()`), add `win32` to the
bundled host keys, add the `simulator-server-argent-windows.exe`
download target with PE arch validation.
- `stop-metro`: resolve listening PIDs via `netstat -ano` on Windows
(`lsof` is POSIX-only and threw ENOENT).
- `adb.ts`: AVD root resolution used `$HOME` + `startsWith("/")`
(rejects `C:\…`); now `os.homedir()` + `path.isAbsolute()`.
- **`boot-device`**: the emulator was spawned `detached` with
`stdio:"ignore"`; on Windows a detached emulator with NUL stdout/stderr
never reaches `sys.boot_completed` (verified on `windows-latest`: the
identical flag set boots fine with real handles, hangs with NUL).
Redirect the detached emulator's output to a temp log file on win32.
POSIX keeps `"ignore"`.

**Tests** — cross-platform unit coverage for `commandOnPath` (both
branches), win32 `.exe` Android resolution, win32 `.exe`
simulator-server resolution, and a win32 AVD drive-path case; dep-gate
tests now mock at the `commandOnPath` boundary so they're
platform-agnostic.

**CI** — `windows-e2e.yml` (`windows-chromium` on `windows-latest`):
runs the resolver/dep unit tests natively on Windows, confirms `adb.exe`
resolution via the SDK root, then drives a **real headless Chrome over
CDP** through the tool-server (discover → screenshot → describe → tap →
observe the DOM mutation). Flow in `scripts/ci/windows-chromium-e2e.mjs`
(also runnable locally / in Docker). The `simulator-server.exe` build +
the full **Android-emulator E2E on Windows** live in radon CI (the
binary's source is the private radon repo).

## Verification (all green)
- **Chromium control plane on real Windows** (`windows-latest`): `✓
discovered chromium-cdp-9222 → ✓ screenshot → ✓ describe → ✓ gesture-tap
→ ✓ DOM mutation observed`. Resolver/dep unit tests run natively;
`adb.exe` resolves via the SDK root (it's *not* on PATH on the runner —
the gap the resolver closes).
- **Android emulator on real Windows** (radon#134, `windows-latest` /
WHPX): the real Argent path — `boot-device` → `{ booted: true }` →
screenshot via `simulator-server.exe` → gesture-tap — all green. (The
boot-device fix above is what makes the detached emulator reach
`boot_completed`.)
- **Local clean-room E2E**: the Chromium flow runs green in a headless
Linux Docker container (fresh `npm ci`, no host pollution).
- **No regressions**: full tool-server suite (1624) +
native-devtools-ios (16); ESLint/Prettier/typecheck clean; **Wayland
E2E** (Linux AVD boot) and **Vega VVD E2E** still pass (they exercise
the changed `adb.ts` / `boot-device.ts` / `vega-cli.ts` paths).

## Notes
Android-emulator E2E needs WHPX nested virtualization — confirmed
available on the current hosted `windows-latest` image (Server 2025);
the emulator boots hardware-accelerated in ~3 min.

---------

Co-authored-by: Ignacy Łątka <claude-hubert.gancarczyk@swmansion.com>
Co-authored-by: Ignacy Łątka <latekvo@users.noreply.github.com>
2026-07-22 13:53:32 +02:00
Juliusz Wajgelt 013d5b60c5 fix: get ax-service working on ios-remote (sim-remote --json spawn + TCP artifact diagnostics) (#536)
## Summary

Three fixes that together get `describe` (and the other ax-service /
native-devtools tools) working against **ios-remote** (`sim-remote`)
devices — including from a **Linux** host. Reproduced end-to-end against
a live remote iPhone 17 simulator over the QUIC relay.

Before: `argent run describe --udid remote:<UDID>` returned an empty
`ROOT AXGroup` with a misleading "reboot the simulator" hint.

### 1. `sim-remote spawn` output was never valid JSON
(`fix(tool-server)`)

`simctlSpawn` parses the CLI's stdout as one `{exit_code,stdout,stderr}`
(or `{pid}`) JSON object, but `sim-remote spawn` only emits that when
passed `--json`. Without it a **non-detached** spawn streams the child's
raw output live, so `JSON.parse` throws `Unexpected end of JSON input`.

This broke ios-remote describe at the first step:
`remoteIosHost.bootstrapAx` runs `defaults write com.apple.Accessibility
…` through a non-detached `simctlSpawn`, which failed before the
ax-service daemon ever started — surfacing only as an empty AX tree.
Fix: pass `--json` unconditionally (no-op for the already-JSON
`--detach` path).

### 2. The tcp ax-service was resolved/packaged under a host-platform
dir (`fix(native-devtools-ios)`)

The tcp `ax-service` is a **darwin/iOS-simulator** binary that is
uploaded to and `simctl spawn`d on the **remote** macOS orchestrator, so
it's needed on any *host* platform. But it was resolved (and packaged)
under `bin/<hostPlatform>/tcp` via `platformBinDir()`, so a **Linux host
looked at `bin/linux/tcp` and never found the darwin-built binary** —
the ios-remote path was effectively macOS-host-only. (The tcp dylibs
were already neutral at `dylibs/tcp`.)

Moved it to a platform-neutral `bin/tcp`, mirroring `dylibs/tcp`, and
rewired every producer/consumer:
- resolver: `platformTcpBinDir()` → `tcpBinDir()` = `BIN_DIR/tcp`
- `native-devtools-ios/scripts/build.sh`: `bin/darwin/tcp` → `bin/tcp`
- `scripts/download-native-binaries.sh`: `TCP_BIN_DIR` → `bin/tcp`
- `packages/argent/scripts/bundle-tools.cjs`: copy from/to `bin/tcp`
- tests assert the neutral location on both linux and darwin

### 3. Missing tcp artifacts were undiagnosable
(`fix(native-devtools-ios)`)

When a tcp artifact is absent (local/dev build, older package), the bare
`... not found` error was thrown deep in the ax-service factory, where
`describeIos` swallowed it and returned an empty tree plus
`DEGRADED_HINT` — telling the agent to `boot-device --force`, a dead
end. The only escape was discovering `ARGENT_SIMULATOR_SERVER_TCP_DIR`
by reading source. Fix: `requireTcpArtifact` throws an actionable error
naming the exact path, the override env var, and how to build it;
`describeIos` surfaces that instead of the reboot hint.

## Testing

- New `sim-remote-spawn-json.test.ts` — asserts `--json` on both plain
and `--bin/--detach` argv, before the `--` separator.
- `native-devtools-ios/test/index.test.ts` — the tcp binary resolves
from the neutral `bin/tcp` on **both** linux and darwin; the not-found
errors name their override env var.
- `native-devtools-ios` (16) + ios/describe tool-server suites pass;
typecheck, eslint, prettier clean.
- Manual end-to-end against `remote:<UDID>` (darwin host): binary at
`bin/tcp` → full tree from `source: "ax-service"`, no hint; binary
removed → actionable `ARGENT_SIMULATOR_SERVER_TCP_DIR` hint.
2026-07-22 08:47:52 +02:00
Ignacy Łątka 300bc30e3d fix(open-url): flag when a web URL may open the browser instead of an app (#476)
## Problem

An agent calling `open-url` to deep-link into an app gets Safari
instead:

```
open-url { "url": "https://bsky.app/profile/tvpworld.bsky.social" }  →  opens Safari
```

### Root cause (not a wrapper bug — an iOS Simulator limitation)

`open-url` on iOS is a thin wrapper over `xcrun simctl openurl`. An
`https://`
URL is a **Universal Link**, which only reaches a native app when that
app is
installed and verified for the link's domain. Two things bite here:

1. On the iOS **Simulator**, `simctl openurl` routes Universal Links to
Safari
   even when the owning app *is* installed — a long-standing, documented
limitation. Custom URL schemes (`scheme://…`) route reliably; Universal
   Links do not.
2. In the reported case the Bluesky app isn't installed at all, so
Safari is
the only valid handler — identical to tapping the link on a real iPhone
with
   Bluesky absent.

Reproduced on a booted iOS 18.5 sim: `simctl openurl <bsky https link>`
launches `com.apple.mobilesafari`; the sim has zero third-party apps
installed;
`bluesky://…` fails with `-10814` (no registered handler), confirming
absence.

The real defect on our side: the result was **always** `{ opened: true
}`, so a
web URL that silently fell back to Safari was indistinguishable from a
successful deep-link — the caller (an agent) believed it had reached the
native
app. There is no reliable way to observe which app actually handled the
URL
(Safari and other apps are invisible to the native-devtools socket), so
the fix
makes the ambiguity explicit rather than guessing.

## Fix

- Add an optional `note` to the `open-url` result whenever a web URL
(`http`/
`https`) is opened on a native device (iOS + iOS-remote). It states the
URL
may have opened in the browser and points to the reliable path: the
app's
**custom scheme** (`scheme://path`) or **`launch-app`** with the bundle
id.
- Update the tool description with the same deep-linking caveat.
- Custom schemes, non-web schemes (`tel:`, `maps://`, `geo:`), and
Chromium
navigations are unaffected (no note). No URL rewriting — the URL is
still
  handed to `simctl` unchanged.

Scoped to iOS deliberately: Android App Links go through `am start` with
a
different verification/chooser path, and the reported symptom is
iOS-specific.

## Verification

- New unit tests (`open-url-deep-link-note.test.ts`, 4 cases): the
helper
returns the caveat for `http`/`https` (case-insensitive) and `undefined`
for
custom/non-web schemes; the iOS handler attaches `note` for the bsky
https
link (URL passed to `simctl` unchanged) and omits it for a custom
scheme.
- End-to-end against a live sim through the real `openUrlTool.execute`:
  - `https://bsky.app/profile/…` → `{ opened: true, url, note }`
- `maps://?q=cupertino` (installed native handler) → `{ opened: true }`,
no note
- `bluesky://…` (not installed) → correct `FailureError` (existing
behavior)
- `tsc --noEmit`, `tsc --noEmit -p tsconfig.test.json`, and `prettier
--check`
  all pass on the changed files.
2026-07-21 16:56:31 +02:00
filip131311 f0026ce6c8 fix(tool-server): stop native-devtools unix socket bind crashing the server (#531)
## Problem

The per-UDID native-devtools unix listener binds with a bare
`server.listen(socketPath)` and **no `error` listener**
(`native-devtools.ts`, the `else` branch of the transport check). A bind
failure — `EADDRINUSE` from a live/concurrent server on the same UDID,
or `EEXIST` from a socket re-created in the window after the pre-unlink
— fires an unhandled `'error'` event, which Node throws as an **uncaught
exception that crashes the whole tool-server at startup**.

The TCP branch right above it already guards its bind with
`server.once("error", reject)`; `ax-service.startListener` does too. The
unix branch was the one that didn't.

## Why it matters — 0.16.0 crash telemetry

The crash-diagnostics shipped in 0.16.0 (`crash_fingerprint` /
`crash_phase` / `error_syscall`) make this the clearly-dominant crash
source. Scoped to `toolserver:stop`, `reason=crash`,
`cli_version=0.16.0`:

- **100% of crashes are socket/fs E-codes**, none are logic bugs.
EADDRINUSE (95%), EEXIST (4%), ENOSPC/EPIPE tail.
- Fingerprint **`dc063fe2`** — the native-devtools socket bind site —
throws both **EADDRINUSE (65)** and **EEXIST (30)** at
**`crash_phase=startup`**, across **~14 distinct users**. That's the
widest-reach source by user count. (A separate single-user
`toolserver_bind` restart loop accounts for most raw *volume*, but only
one machine.)

EEXIST at this site is the known concurrent-agent contention on
`/tmp/argent-nd-<UDID>.sock` — a stale/racing socket file left by
another server.

## Fix

Extract the unix bind into `bindNativeDevtoolsUnixSocket(server,
socketPath)`, mirroring `ax-service.startListener`:

- Attaches an `error` listener so a bind failure **rejects** instead of
throwing uncaught → routes into the factory's existing retry +
failure-telemetry path, failing only this one service.
- On `EADDRINUSE`/`EEXIST`, **unlink the stale entry and retry the bind
once** — self-heals the unlink→listen race with a concurrent same-UDID
server.
- On any other failure (or a second failure), rejects with a coded
`FailureError` (`NATIVE_DEVTOOLS_SOCKET_BIND_FAILED`,
`failure_stage=native_devtools_socket_bind`) so it's cleanly
classifiable in telemetry going forward.

## Testing

- **Unit** (`native-devtools-socket-bind.test.ts`, 4 cases): free-path
bind, stale-file self-heal, coded-FailureError on unbindable path,
no-uncaught-throw when contending a live-held path.
- **Full telemetry + registry suites**: 368 pass (new failure code
accepted by the sanitizer allowlist).
- **Live A/B against built output** — a live server holds the socket,
then two child processes contend for it:
- OLD (pre-fix `server.listen(path)`): **exit 1, uncaught EADDRINUSE
crash** ← bug reproduced
- NEW (compiled `bindNativeDevtoolsUnixSocket`): **exit 0, self-healed
and bound** ← fix works
- **Bundled-artifact check**: ran the esbuild `bundle-tools` step; the
fix's retry logic and coded failure survive bundling intact in
`dist/tool-server.cjs` (no dead-code-elimination surprise).

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-07-21 10:28:14 +02:00
Jakub Piasecki a0d1bbb1e7 feat(flow): indent nested steps in reports by block depth (#524)
Flow reports rendered every step flat, hiding which steps ran inside a
`when:` block or a `run:` fragment. The tool-server now stamps
`StepReport.depth` (+1 per block directive, omitted at top level) and
the CLI/MCP renderers indent step labels and under-step lines by it:

```
  ✓  1 launch
  ✓  2 when visible "What's new" — condition met
  ✓  3   tap "Skip"
  ✓  4   run dismiss [dismiss]
  ✓  5     tap "OK" [dismiss]
```

Invariants:

- **Wire-compatible both ways** — a flow with no block directives
reports byte-identical to the pre-depth shape; a pre-depth server
renders flat as before.
- **Skipped ≡ entered** — skipped/errored/aborted blocks report the same
depths as entered ones, keeping reports comparable run-to-run.
- **Untrusted wire data** — renderers clamp depth (display cap, not a
producer bound): hostile values render flat or at the cap, never throw
or allocate huge strings.

Also fixes a pre-existing bug: under-step warning/artifact lines now
stay aligned past 99 steps.

Tests pin depth on every producer path (entered/skipped/errored/aborted
blocks, `run:` success/failure markers, `run:`-in-`when:`) and renderer
alignment incl. the clamp boundary.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 07:28:48 +02:00
Ignacy Łątka eb16d1c193 fix(tool-server): hard-kill (SIGKILL) timed-out iOS simctl calls so describe can't hang (#525)
## What happened

An iOS `describe` call hung for **~24 minutes** on the benchmark host,
logging the incoming request and then going completely silent until the
tool-server was killed.

The iOS `describe` path shells out to `xcrun simctl` for nearly every
step — `isTvOsSimulator` (`simctl list`), the ax-service bootstrap
(`simctl spawn defaults …`), and the native-devtools env setup (`simctl
spawn launchctl …`). Every one is guarded by `execFileAsync(…, {
timeout: 10_000 })`, so on paper each is bounded to 10s.

The problem is in Node itself: **`execFile`'s `timeout` sends its
`killSignal` (default `SIGTERM`) exactly once and never escalates to
`SIGKILL`.** When CoreSimulatorService wedges (which rapid
clone/boot/delete churn induces), the `simctl` child ignores SIGTERM,
its stdio never closes, and the promise never settles — so the
"10-second timeout" never actually fires. There is no outer deadline on
the `describe` tool to catch it, so the call hangs until the process is
killed.

## Why this is the root cause (not a guess)

- **Static elimination:** every JS-level guard on the describe path
(ax-service's 10s connect/query timers, native-devtools' 5s RPC timers)
*would* have fired and let `describe` return — and it never returned.
That leaves only an `execFileAsync` whose OS-level kill failed to settle
the promise.
- **Server logs:** the hung process logged the POST, then nothing for 24
min until the kill — the exact signature of a stuck subprocess await
with no error thrown.
- **Existing precedent:** `adb.ts` already fixes this identical class of
bug for Android via `ADB_KILL_SIGNAL = "SIGKILL"` (see its comment:
"Node's execFile default kill signal is SIGTERM, which an `adb` process
blocked on a hung daemon can ignore — leaving the parent waiting past
the deadline"). The same fix was simply never applied to the `simctl`
path.
- **Deterministic repro:** `execFileAsync('sh', ['-c', 'trap "" TERM;
…'], { timeout: 2000 })` never settles; adding `killSignal: "SIGKILL"`
makes it reject at ~2006ms. Reproduces both the hang and the fix.

## The fix

- Add `SIMCTL_KILL_SIGNAL = "SIGKILL"` to `simctl-config.ts` and pass it
alongside the timeout on every describe-path `simctl` invocation
(`ax-prefs.ts`, `ios-devices.ts`, `ios-host.ts`), mirroring
`ADB_KILL_SIGNAL`.
- Add the missing `timeout` + kill signal to
`listRunningUIKitApplicationBundleIds`, which had **no timeout at all**
(a latent forever-hang on the `native-devtools-status` path).
- Add `test/ios-simctl-hardening.test.ts` pinning every describe-path
`xcrun simctl` call to `killSignal: SIGKILL` + a finite timeout.

## Verification

- `tsc --noEmit` clean (src + tests).
- Full tool-server suite: **2670/2670 pass**.
- Confirmed the new test is a real guard: stripping the flag makes it
fail, restoring makes it pass.

## Scope note

This fixes the **proven** describe / native-devtools path. The same
latent hang exists in other `simctl` call sites (`boot-device`,
`launch-app`, `screenshot`, etc.) that use `execFileAsync` with the
default signal — extending SIGKILL to the whole `simctl` surface is a
reasonable follow-up but was kept out of this PR to stay scoped to the
reported hang.

One caveat: if `simctl` is ever stuck in true uninterruptible kernel
state, even SIGKILL can't reap it until the syscall returns; the fully
robust version would detach the await from the child via an independent
deadline. SIGKILL matches the `adb` precedent and handles the realistic
CoreSimulator-wedge case.

---------

Co-authored-by: Ignacy Łątka <claude-hubert.gancarczyk@swmansion.com>
2026-07-20 19:26:33 +02:00
Piotr Krawiec 49e020bafd fix(tool-server): resolve ps by absolute path so VVD dedup survives a sanitized PATH (#508)
## What

A running Vega VVD registers a second adb transport (`emulator-<port>`),
so it can surface in `list-devices` **twice** — once as
`platform:"vega"` and once as `platform:"android"`. There's dedup logic
(`resolveVvdShadowAdbSerials` + `filterVvdShadowsFromAndroid`) that
drops the adb "shadow" row by matching the running VVD's console port —
read from the process table via `ps` — against the adb serial's port.

That dedup was spawning a **bare `"ps"`**, which relies on `PATH`.

## Why it broke

An MCP server is frequently launched from a GUI / launchd context that
inherits a **sanitized `PATH`** omitting `/bin`. There, `execFile("ps",
…)` fails with `ENOENT`; the surrounding `catch` returns an empty port
set, and the dedup silently no-ops — so the VVD shows up as two devices.
It works fine from an interactive shell (where `/bin` is on `PATH`),
which is why it doesn't reproduce in a terminal or in the existing
tests.

Observed: `list-devices` returned both a phantom `platform:"android"`
`emulator-5554` and the real `platform:"vega"` device for a single
running VVD.

## Fix

Pin `ps` to its canonical absolute location, matching how the codebase
already hardcodes `/bin/sh` (`android-binary.ts`, `vega-cli.ts`,
`check-deps.ts`):

```ts
export const PS_BIN = ["/bin/ps", "/usr/bin/ps"].find((p) => existsSync(p)) ?? "ps";
```

Applied to all four `ps` spawn sites:
- `vega-process.ts` — `listRunningVvdConsolePorts`, `listRunningVvdPids`
- `vega-cli.ts` — `collectDescendantPids`, `pgidMembers` (same latent
PATH fragility in the process-reaping paths)

The bare-`"ps"` fallback is retained only if neither canonical path
exists, preserving `PATH` resolution for an atypical layout.

## Tests

- New regression test in `vega-process.test.ts` that strips `/bin` and
`/usr/bin` from `PATH` and asserts the probe still spawns `ps` (a bare
`"ps"` ENOENTs there — verified the test fails against the pre-fix
code).
- Updated the `list-devices.test.ts` mock to match `ps` by basename,
since production now passes an absolute path.
- `npm run build`, typecheck, lint (`--max-warnings 0`), and the full
vega/list-devices suite (47 tests) all pass.

## Verification

End-to-end `list-devices.execute()` under a launchd-style minimal `PATH`
now returns exactly **one** device (the Vega), with no android shadow.
`PS_BIN` resolves to `/bin/ps` and reads the VVD's console port even
with `/bin` removed from `PATH`.

---------

Co-authored-by: Piotr Krawiec <krawipio@amazon.pl>
2026-07-20 17:05:16 +02:00
filip131311 66e051fe8b fix(debugger): collapse a device's two ids onto one debugger instance (#528)
## The problem

A device is reached through **two id namespaces** that name the same
thing but are different strings:

- the **stable id** the caller connects with — an iOS UDID / Android
serial / Vega serial from `list-devices`;
- the **`logicalDeviceId`** Metro's inspector-proxy echoes back for that
connection (an opaque per-connection handle).

`logicalDeviceId` is not derived by Argent — it is echoed verbatim from
Metro (`js-runtime-debugger.ts`), and Metro never sees the UDID, so
there is **nothing to join on synchronously**.

The debugger service is cached by its URN, which embeds `device_id`
verbatim:

```
JsRuntimeDebugger:<port>:<device_id>
```

`debugger-connect` took the UDID, returned the logicalDeviceId, and its
description told callers to *"forward it as device_id to all subsequent
debugger-\* calls."* Following that instruction produced a **different
URN** → a **second `JsRuntimeDebugger` instance** → a second
`CDPClient`, a second console-log server, and a split log file — **all
for one device**. The second attach also kicks the first off Metro's
single-debugger-per-target proxy. Nothing deduplicated them.

It only *looked* fine because with a single device on a Metro port,
`selectTarget`'s single-device fallback quietly connects anyway; the
split surfaces as "the debugger randomly drops" and logs landing in the
wrong bucket.

Secondary damage the same split caused:
- `classifyDevice()` is shape-based and was fed the logicalDeviceId → an
iOS device's forwarded id classified as **Android** in the capability
gate + telemetry.
- The docs asserted *"iOS simulator UDID, Android logicalDeviceId"* as
if a UDID were the iOS logicalDeviceId — the repo's own test says the
opposite.
- `debugger-component-tree` printed the logicalDeviceId under a `udid:`
label — teaching callers the wrong name.

## The fix — synchronous, within the existing `services()` design

- **Learn an alias** `logicalDeviceId → connect-id` as a side effect of
a successful connect (the one place both ids are known at once; see
`utils/debugger/device-alias.ts`), and **canonicalize `device_id`
through it at every URN-building site**. A forwarded logicalDeviceId now
resolves to the already-open instance; unknown ids (the connect id
itself, Chromium ids) pass through unchanged, so it is safe to call
everywhere. **No Metro round-trip on the hot path — `services()` stays
synchronous.** The alias is 1:1 (a logicalDeviceId is unique per
connection) and is cleared on dispose.
- **Rewrite the `device_id` docs** across `debugger-*`, `network-*`, and
`react-profiler-*`: pass the **same list-devices id you connected
with**; the returned logicalDeviceId is informational (forwarding it
still resolves, via the alias). Removes the instruction that caused the
double instance and the false "UDID = logicalDeviceId" wording.
- **Fix the `debugger-component-tree` header** (`udid:` →
`logicalDeviceId:`).

Covered call sites (all that embed `device_id` into a Metro URN):
`debuggerServiceRef` (connect/evaluate/status/log-registry),
`debugger-reload-metro`, `debugger-component-tree`,
`debugger-inspect-element`, `react-profiler-start` (+ its session URN),
`react-profiler-stop`, `network-logs`, `network-request`.

## Verification

**Live**, against a real iOS sim + Metro (my-app, RN 0.81.5), driving
the branch tool-server directly:

| step | result | URNs instantiated |
|---|---|---|
| `debugger-connect { device_id: <UDID> }` | returns `logicalDeviceId:
d52ad36b…` | `JsRuntimeDebugger:8081:<UDID>` |
| `debugger-evaluate { device_id: d52ad36b… }` (forward the
logicalDeviceId) | `42` ✅ | **no new URN — reused** |
| counterfactual: `debugger-evaluate { device_id: some-unaliased-id }` |
`42` ✅ | **`JsRuntimeDebugger:8081:some-unaliased-id` — a distinct 2nd
instance** (the pre-fix behavior, reproduced) |
| `debugger-component-tree { device_id: <UDID> }` | header reads
`logicalDeviceId: d52ad36b…` ✅ | reused |

**Unit** — new `test/metro/device-alias.test.ts` covers the alias (learn
/ canonicalize / self-alias no-op / missing-id / forget) and that
`debuggerServiceRef` yields the same URN whether called with the UDID or
the forwarded logicalDeviceId. Full tool-server suite green (2726
tests).

## Not in scope

Renaming the `device_id` param to `udid` (or vice-versa) — that is a
breaking MCP wire change. This PR is additive: a forwarded
logicalDeviceId keeps working, it just no longer opens a second
connection.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-20 16:21:56 +02:00
Jakub Piasecki 3f602a7a9b feat(flow): conditional when blocks (#498)
## What

A `when:` block runs a step list only when one condition holds — a UI
condition (`exists`/`visible`/`hidden`/`text`, the await/assert shapes)
or a static `platform` test. **No else**, by design: a block exists to
restore determinism (dismiss an interstitial, reconverge), never to
test two paths. Tap-if-present is a one-step block:
`when: { visible: "Got it" }` + `steps: [tap: "Got it"]`.

No per-step `optional:` — `when:` covers every directive once. The key
is rejected at parse with a pointer to `when:`, not silently dropped (a
Maestro habit that would leave a "can't fail" step hard-stopping the
flow).

## How

- The guard reuses the assert engine at the 1s grace (`timeout` is a
parse error), so a skipped block barely costs a clean run.
- Verdicts are evidence-based: no trustworthy read in the window →
indeterminate → the step **errors** ("could not evaluate" is not
"condition false"); a transient read failure after trusted reads showed
the condition false stays a clean skip.
- `platform` folds `ios-remote` into `ios` — the parser rejects that
spelling, so the fold is the only way a guard matches a remote sim.
- A skipped block reports one line per authored step, same shape for
unmet guard, hard stop, or cancellation; everything goes through
`pushReport`, so when lines stream live. Failures inside an entered
block hard-stop as usual.
- Results carry an explicit `aborted` flag; `ok` keys off
fail/error/cancel, not skip lines.
- Nesting is capped at 20, so a cyclic YAML alias is a structured parse
error, not a stack overflow.

## Testing

`vitest` 2546 pass (17 when-specific); `tsc --noEmit` (tool-server,
argent-mcp, argent-cli), eslint, prettier clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 10:26:34 +02:00
Jakub Piasecki 8d633700d7 feat(flow): coordinate targets for tap and long-press (#504)
## Summary

This adds raw normalized screen coordinates as first-class targets for
both `tap` and `long-press`. Gestures can now target either an element
selector or a point, while keeping the existing selector auto-wait and
off-screen diagnostics.

Supported forms include:

```yaml
- tap: { x: 0.5, y: 0.6 }
- tap: { on: { x: 0.5, y: 0.6 }, times: 2 }
- long-press: { x: 0.5, y: 0.6 }
- long-press: { on: { x: 0.5, y: 0.6 }, duration: 1200 }
```

## What changed

- Introduced a shared gesture-target parser for selector and point
targets.
- Added raw-point execution for `long-press` and shared point resolution
between tap and long-press.
- Validate coordinates as finite normalized `0–1` screen fractions,
rejecting pixels, malformed points, mixed selector/coordinate maps, and
unknown point keys.
- Canonicalize option-bearing coordinate gestures under `on`, keeping
option keys separate from target fields.
- Preserve coordinate targets in recording summaries and flow progress
reports instead of displaying an undefined selector.
- Added serialization validation so recording cannot persist a flow that
would fail when parsed for replay.
- Updated the flow authoring skill and tool description with the new
coordinate forms.

## Behavior notes

- Raw points act immediately and do not resolve or observe the UI tree.
- Selector targets retain settling, auto-wait, and the existing
`scroll-to` hint when an element cannot be found.
- Observation directives such as `type`, `await`, `assert`, and
`scroll-to` remain selector-only.
- The mixed spelling `tap: { x, y, times }` is now intentionally
rejected; use `tap: { on: { x, y }, times }` instead.

## Validation

- Full tool-server suite: 2,618 tests passed across 266 files.
- Added parser, serialization, recording, touch execution, Chromium
execution, reporting, and malformed-input coverage.
- Tool-server build, test typecheck, ESLint, Prettier, and skill
validation passed.
2026-07-17 14:48:29 +02:00
Jakub Piasecki 1a4f89cd5f feat(flow): allow to compose all flows via run: (#507)
## Summary

`run:` accepted **fragments only** — an e2e flow (one starting with
`launch:`)
was rejected as a `run:` target. This lifts that: an e2e flow can now be
nested
via `run:`, its `launch` running inline (a real terminate + relaunch on
native).
Composition becomes uniform — any flow can be a reusable building block.

## What changed

- **`flow-run.ts`**: dropped the `isE2eFlow` rejection in `execRunStep`;
cycle /
  `MAX_RUN_DEPTH` guards still bound recursion.
- **`flow-add-step.ts`**: the recorder now captures a recorded
`flow-execute` of
an e2e sibling as a portable `run: <name>` directive (was: raw `tool:`
step).
- **`flow-utils.ts`, `argent-create-flow/SKILL.md`**: updated docs/skill
that
  said e2e flows can't be `run:` targets.

## Known limitation — Chromium

Chromium `launch` boots an Electron app from a *path*, wired to the
top-level
flow only — so a nested **chromium** e2e flow doesn't boot its own app.
Native
nesting is correct; chromium nested e2e is unsupported.

## Testing

Rewrote the two affected tests (composition + recorder). Full flows
suite green
(349 tests); `tsc --noEmit` clean.
2026-07-17 14:18:32 +02:00
Jakub Piasecki 49991e9fe1 feat(screenshot-diff): support full-image comparisons (#515)
## Summary

- Add an explicit top-mask policy to the shared PNG differ.
- Preserve status-bar masking by default while allowing isolated image
regions to compare every row.
- Add real-PNG regressions for top-band changes and one-row images.

This prepares the differ for cropped comparisons without changing
existing callers.

## Testing

- Screenshot-diff tests
- Tool-server build
2026-07-16 17:21:59 +02:00
filip131311 92b8c039c3 fix(flow): refuse invisible-only text selectors — record coordinates instead (#511)
## The bug (found in the 0.15.0 full-surface QA, on both the Android
emulator and a physical S24)

Recording a `gesture-tap` on an icon-font tab-bar item wrote a flow step
that displays as an **empty selector**, with the coordinates gone:

```yaml
steps:
  - tap:
      text:      # ← actually U+E163, an icon-font Private Use Area glyph
```

and `flow-execute` then **silently passed** against target `""`, tapping
an element no reader of the flow can predict. Root cause (hexdump of the
QA-recorded file: `ee 85 a3` = U+E163): icon fonts expose their glyph as
the element's accessibility label; `deriveSelector` accepted any label
that survived `trim()`, so a PUA code point counted as "stable text".
This violated the rewrite's own documented contract — *"otherwise
coordinates are kept with a warning"* — whose fallback path existed and
worked, but never ran for this case.

## The fix — one predicate, three layers

`hasVisibleText()` (strip Unicode `Cf` format / `Co` private-use / `Cc`
control, then trim; require something left):

1. **`deriveSelector`** — invisible-only label/value is not stable text;
fall through to role, then to the recorder's existing kept-coordinates
path.
2. **`selectorToYaml`** — the empty-text guard previously covered only
the bare-string spelling; it now also rejects empty/invisible text on
the strict `{text: …}` map form, so a hand-built selector fails loudly
instead of writing an unreadable flow file.
3. **`selectorSchema`** — parse-side refinement, so flow files already
recorded broken on 0.15.0 fail with an actionable message ("text must
contain at least one visible character … select by identifier or role
instead") instead of false-passing at replay. This also hardens the
`await-ui-element` tool surface, which shares the schema.

Text that merely *contains* an icon glyph alongside real text ("⟨U+E163⟩
Explore") stays valid throughout.

## Verification

- Unit: `deriveSelector` PUA/ZWSP/mixed cases, serialize + parse
rejection round-trips (explicit `\uXXXX` escapes, no invisible bytes in
the test source).
- Full tool-server suite: **2667 passed**.
- **Live on the Pixel_9 emulator against the original QA repro** (my-app
tab bar, same coordinates): recording now produces `tap: {x: 0.75, y:
0.947}` with the documented *"kept coordinates (brittle)"* warning — the
role fallback was correctly caught by the existing
resolves-to-a-different-element guard — replay passes 2/2 on the
coordinate targets, and executing the old broken YAML now fails parse
with the visible-character error.

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-07-15 20:31:23 +02:00
Ignacy Łątka af8476c0a9 feat(vega): support the JS-runtime debugger and network inspector on Fire TV (#502)
Vega's React Native is a fork of **RN 0.72**, so it serves the *legacy*
Hermes inspector rather than the post-0.73 (Fusebox) debugger. The
`debugger-*` / `view-network-*` / `react-profiler-*` tools were never
gated for it, so every call against a VVD was rejected before any RN
code ran:

```
Tool 'view-network-logs' is not supported on vega vvd (no vega support declared).
```

That gate turned out to be the only thing in the way for most of them.

The concern that prompted this was that the network inspector needs the
new debugger. It does not: argent's network inspector never touches the
CDP `Network` domain, it monkey-patches `fetch` over `Runtime.evaluate`
and reads back a global array. `Runtime.evaluate` has worked in Hermes
since long before 0.73, so the network inspector is precisely the tool
that is *unaffected* by the missing new-debugger stack.

## What now works on Vega

Gated in via `DEBUGGER_TOOL_CAPABILITY` (these need only
`Runtime.evaluate`):

`debugger-connect` · `debugger-status` · `debugger-evaluate` ·
`debugger-log-registry` · `view-network-logs` ·
`view-network-request-details`

## What stays gated off, and why

`debugger-component-tree` · `debugger-inspect-element` ·
`debugger-reload-metro` · `react-profiler-*` · `profiler-*`

Two different reasons, and it is worth keeping them apart:

- **`debugger-component-tree` and `debugger-inspect-element` are
hard-blocked.** They are the only two callers of
`cdp.evaluateWithBinding`, i.e. they deliver their payload over
`Runtime.addBinding` / `Runtime.bindingCalled`. RN 0.72's Hermes **ACKs
`Runtime.addBinding` and never installs the binding** — confirmed on the
VVD: after a successful `debugger-connect`, `typeof __argent_callback`
is still `"undefined"`, and no `bindingCalled` ever fires. They would
hang until timeout.
- **`debugger-reload-metro` and the profiler tools are simply unverified
here.** They do *not* use the binding (`reload-metro` is `Page.reload`
plus an HTTP `/reload` fallback; the profilers ride `Runtime.evaluate`
and the CDP `Profiler` domain). They share `RN_ONLY_TOOL_CAPABILITY` and
stay out of scope rather than ship untested.

Either way the capability gate turns a hang (or an unknown) into an
immediate, explicit "not supported". `describe` remains the way to read
on-screen structure on Vega.

Worth noting for a follow-up: the component-tree data itself *is*
reachable on RN 0.72 — walking the DevTools hook via a plain
`Runtime.evaluate` returns the real fiber tree (640 fibers on the sample
app). Component-tree is blocked by argent's transport choice, not by a
missing runtime capability, so a non-binding fallback would unlock it.

## Two bugs this surfaced

**A Vega `device_id` could bind to another device's runtime.** Vega's
legacy inspector-proxy emits no `reactNative` block at all, so its
targets carry no `logicalDeviceId`. `selectTarget` both matched
`device_id` on `logicalDeviceId` *and* counted connected devices the
same way — so a Vega device was invisible to the multi-device guard from
#397: its id matched no target, the guard counted zero devices,
concluded there was nothing to disambiguate, and fell through to the
priority target. With a Fusebox iOS/Android app on the same Metro, that
target wins the priority list, so `debugger-evaluate` would have run JS
**in the wrong app** while `debugger-status` reported the other device's
name and `isNewDebugger: true`. Devices are now keyed by
`logicalDeviceId || deviceName` (the legacy proxy always reports a
name), so the guard sees them and refuses to guess. A lone VVD still
falls back to its own targets. This is not Vega-specific: any RN ≤ 0.72
device was invisible the same way.

**Metro's missing project-root header.** RN 0.72's Metro never sends
`X-React-Native-Project-Root`, and `discoverMetro` treated a missing
header as fatal — which took down evaluate, console logs and the network
inspector too. The header only feeds source-map / `file:line`
resolution, which degrades cleanly to no-location, so it is now
optional. Platform-agnostic, not a Vega special-case: a missing
source-map hint should never kill an otherwise working debugger session.

That made `projectRoot: ""` a reachable state, which two
source-resolution paths mishandled. `symbolicate` stripped the root with
`file.replace(projectRoot + "/", "")`, which on an empty root degrades
to `.replace("/", "")` and deletes the first slash *anywhere* in the
path (`src/screens/Home.tsx` → `srcscreens/Home.tsx`). And
`readSourceFragment` did fail closed, but only because
`fs/promises.realpath("")` happens to reject where the sync API returns
the tool-server's cwd — it now bails explicitly instead of leaning on
that quirk. Both are reachable from `debugger-inspect-element` on any
legacy Metro (not on Vega, where it is gated off).

## Verification

Driven end-to-end against a real VVD (`amazon-6b8a…`) running the
`react-native-multi-tv-app-sample` Vega app (Debug `.vpkg`, Metro
reachable via reverse port-forward), through a tool-server built from
this branch:

```
debugger-status   -> connected: true, deviceName: kepler-device, isNewDebugger: false, projectRoot: ""
debugger-evaluate -> "hermes=object fetch=function global=object"
debugger-log-registry -> captured console.log "PR502_E2E_MARKER"

=== NETWORK LOGS (page 1/1, 2 total) ===
{id: rn-net-1} "GET /todos/7" 200  Fetch 98 B  55 ms
{id: rn-net-2} "GET /users/3" 200  Fetch 520 B 17 ms

view-network-request-details -> full request/response headers, status, timing
```

And the gated tools fail fast (0.02s) rather than hanging:

```
debugger-component-tree  -> not supported on vega vvd
debugger-inspect-element -> not supported on vega vvd
debugger-reload-metro    -> not supported on vega vvd
react-profiler-start     -> not supported on vega vvd
```

Re-ran the whole sequence against the fixed target-selection to confirm
the single-VVD path still connects.

Also run locally: `tsc --build`, `tsc --noEmit -p tsconfig.test.json`,
`eslint . --max-warnings 0`, `prettier --check`, `grade-skills`, and the
tool-server unit tests (199 files / 1740 tests). Tests added:
`vega-target-routing` (the mis-route, using a target payload captured
verbatim from the live VVD), `source-resolver-empty-root` (both
empty-root paths), and `vega-debugger-capability` — which now drives the
real `ToolDefinition.capability` fields and `resolveDevice` instead of a
hand-written name↔constant pairing, pinning all 6 enabled and all 14
gated tools. The old version passed even with `debugger-status` wired to
the wrong capability constant.

Scope note: VVD only — no tool declares `vega: { device: true }`, so
physical Fire TV hardware is untouched.
2026-07-15 15:36:12 +02:00
filip131311 70660378bb feat(tool-server): type secrets via {{secret:NAME}} placeholders — plaintext never enters agent context (#506)
## Why

Feedback: unlike Stagehand's `act("type %pw% into password", {
variables: { pw } })`, argent had no way to type a credential without
the LLM seeing the plaintext — which disqualifies it as a CI agent. In
the MCP model the agent composes the `keyboard` call itself, so a
plaintext password lands in **six** places: the agent transcript,
`~/.argent/mcp-calls.log` (spyLog records full args + result), the
flag-gated tool-server event log, the `typed` result echo, recorded flow
YAMLs (committed to the repo), and the post-type auto-screenshot
(plaintext back into context as pixels for non-secure fields).

## What

`keyboard` and `paste` now accept **`{{secret:NAME}}`** placeholders in
`text`, resolved server-side from **`ARGENT_SECRET_NAME`** environment
variables:

```yaml
# GitHub Actions
env:
  ARGENT_SECRET_APP_PASSWORD: ${{ secrets.APP_PASSWORD }}
```

```json
{ "udid": "<UDID>", "text": "{{secret:APP_PASSWORD}}", "key": "enter" }
```

**Resolution happens inside the tool's `execute`** — after every
existing logging boundary — so spyLog, the event log, the transcript,
and recorded flows all see only the placeholder, with near-zero extra
redaction work:

- `run-sequence` keyboard steps and flow `type` steps go through
`invokeSubTool` into the same `execute` → covered for free. A recorded
login flow stores the placeholder verbatim, so the committed YAML is
secret-free — and agent-less `argent flow run` (#429) resolves it in CI
from the job's env, no LLM in the loop at all.
- The mandatory `ARGENT_SECRET_` prefix is an allowlist by construction:
a prompt-injected agent can never exfiltrate `AWS_SECRET_ACCESS_KEY` or
`GITHUB_TOKEN` through this mechanism — only vars the user deliberately
exposed under the prefix resolve.
- `typed` echoes the placeholder, never the value.
- Backend errors are scrubbed at the resolution site (e.g. a failed
Android `input text` echoes the device-side command line containing the
secret) — message and stack, in place, preserving the error class and
with it the HTTP-status/telemetry mapping.
- Unknown placeholder → 400 listing the **names** of available secrets,
never values (`SECRET_PLACEHOLDER_UNKNOWN`).
- **Auto-screenshot skip:** the MCP layer deep-scans args for
`{{secret:` and replaces the after-action screenshot with a text note —
otherwise a non-secure-entry field hands the plaintext straight back to
the model as an image. Covers nested `run-sequence` steps too.
- Remote-routed setups resolve on the machine that types (the
tool-server's env) — documented in the skill.
- Inert unless a placeholder is used; no feature flag.

## Docs

- `keyboard` / `paste` tool descriptions
- `argent-device-interact` skill: "Typing secrets" section (incl.
*don't* `describe`/`screenshot` the field you just filled — submit
first)
- `argent-create-flow` skill: never record a real credential;
placeholder flows stay secret-free in the repo

## Known residual risks (shared with Stagehand-style designs)

- A prompt-injected agent could direct `{{secret:X}}` into an
attacker-visible field and screenshot it — inherent to any "agent types
secrets" design; the prefix allowlist and no-read-back keep the blast
radius to secrets deliberately exposed.
- `describe` can read back a non-secure field's value after typing; iOS
secure fields briefly show the last typed character; Android typing puts
the resolved string on the device-side `input` command line. Acceptable
for emulator CI; noted in the skill.
- `keys` in the result still reflects the real keystroke count (secret
length) — kept for debuggability.

## Tests

- `keyboard-secrets.test.ts`: resolution (embedded/repeated
placeholders, malformed shapes ignored), unknown-name error lists names
but never values, redaction preserves error class, full `execute`
round-trips on the chromium branch asserting the plaintext appears
nowhere in results or thrown errors, paste via mocked `sendCommand`.
- `auto-screenshot.test.ts`: `containsSecretPlaceholder` on
flat/nested/unserializable args (fails safe).
- Full suites green: tool-server 2550, argent-mcp 76, registry 87;
builds + `typecheck:tests` + eslint + prettier clean.

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-07-15 13:42:55 +02:00
Jakub Piasecki 3d3b82a076 feat(flow): regex matching via matches in assertions and selectors (#503)
## What

- Add `matches` as a case-sensitive JavaScript regex comparator for
`await` and `assert` text conditions.
- Support `{ text: { matches: ... } }` in every flow selector slot,
combined with `id` and `role`.
- Preserve regex matchers through parsing, YAML serialization, recording
summaries, and run reports.

## Correctness

- Prevent empty-matchable patterns from matching unlabeled nodes or
empty assertion text.
- Reject unknown raw `await-ui-element` selector keys instead of
silently dropping constraints.
- Reject selector combinations YAML cannot round-trip without changing
their semantics.
- Document native label aggregation accurately and keep action ranking
consistent.

## Maintenance

- Share selector-field and regex-syntax validation across both matcher
parse paths.
- Compile selector regexes once per tree walk and full-match regexes
once per ranking pass.
- Make comparator serialization exhaustive, extract the duplicated flow
test harness, and scope slow-test timeouts narrowly.

## Verification

- Full tool-server suite: 2,588 tests across 263 files.
- Source and test typechecks, ESLint, Prettier, and skill-copy
validation pass.
2026-07-15 08:07:03 +02:00
Jakub Piasecki 5082b63082 feat(flow): multi-tap via tap times and gesture-tap clickCount (#497)
Flows can now express double-taps declaratively:

```yaml
- tap: { on: Login, times: 2 }          # selector double-tap
- tap: { x: 0.5, y: 0.57, times: 2 }    # coordinate double-tap
```

The selector nests under `on` so option keys never share a map with
selector fields — zod would silently strip them; mixing errors with a
hint instead. `times: 1` normalizes to absent and the serializer emits
the minimal spelling, keeping parse/serialize exact inverses.

The taps dispatch as **one gesture** via `gesture-tap`'s new
`clickCount` (1–10): N Down/Up pairs ~100 ms apart on touch, escalating
CDP `clickCount` per click on Chromium (what makes `dblclick` actually
fire) — never N separate calls whose RPC gaps could miss the OS
double-tap window.

The recorder carries a recorded `clickCount` into `times`, so a recorded
double-tap can't silently replay as a single tap.
2026-07-15 07:55:31 +02:00
Jakub Piasecki 7bf693a573 feat(flow): long-press directive (#500)
Press-and-hold on an element — context menus, reorder activation — with
the same resolution behavior as `tap` (settled tree, auto-wait, no
auto-scroll) and the same options shape: a bare/strict selector, or
`long-press: { on: <selector>, duration: <ms> }` with the selector
nested under `on` so option keys never mix with selector fields.

The default 800ms clears both platforms' recognizers (iOS 500ms,
Android ~400ms). Touch platforms dispatch one `gesture-custom` train
(`Down`, then `Up` delayed by the duration) so the hold length is
exact; Chromium maps to a mouse press-hold-release (`gesture-drag`,
from == to) — a desktop context menu is a right-click and is
deliberately not aliased. Vega rejects upfront with the other touch
directives. No coordinate form: a point long-press stays the
`gesture-custom` escape hatch.
2026-07-14 18:18:24 +02:00
Jakub Piasecki e45f148c50 fix(tool-server): press named key after text in keyboard tool (#486)
## Problem

A `keyboard` call combining `text` and `key` pressed the named key
**before** typing the text — the reverse of the intended "type, then
submit". Every platform branch had the same ordering (copied verbatim
from the original iOS implementation into each port), and nothing in the
schema or description documented it. Ironically, run-sequence's own
description lists *"typing then pressing enter"* as a canonical use
case.

The observed failure: an agent ran `{ text: "jane@test.dev", key:
"enter" }` against a freshly-focused email field in a React Native dev
build. Enter fired first into the still-empty field, submitting and
blurring it; the text was then typed with nothing focused. RN's
`RCTKeyCommands` matches Cmd-registered dev commands even with no
modifier held when there is no first responder (`_flags == flags ||
flags == 0` in `matchesInput🎏`), so the bare `d` in ".dev" toggled
the dev menu mid-sequence, and every subsequent tap landed on the
dev-menu overlay.

## Fix

- All executing branches now type `text` first and press `key` after it:
  - `simulator-server-keys.ts` (iOS simulator / Android emulator)
  - `keyboard/platforms/chromium.ts` (Electron / CDP)
  - `keyboard/platforms/vega.ts` (Fire TV)
  - (the TV branch already rejects `key`; unchanged)
- Unknown key names are still rejected **before** any text is typed —
each branch resolves the named key up front instead of relying on the
old key-first order for fail-fast. The Vega branch gained
`resolveVegaNamedKeycode` in `vega-input.ts` so validation is separable
from injection.
- The ordering is now documented in the keyboard tool's `key` param
description and tool description, and in run-sequence's args table. The
run-sequence "type text and submit" example now shows the combined
single-step form, since that is the pattern agents naturally reach for.

## Verification

- New regression suite `test/keyboard-key-order.test.ts`: 6 tests
asserting key-after-text ordering and fail-fast on unknown keys across
all three branches.
- Full tool-server suite: 1995/1996 pass — the single failure
(`await-ui-element` Android `hidden` edge case) fails identically on
clean `main`, as do the two `tsc` errors from a stale
`@argent/telemetry` build.
2026-07-14 08:31:50 +02:00
Hubert Gancarczyk fcf0ede624 feat(tool-server): settings-permissions tool to grant/deny/reset app permissions (#462)
## What

Adds a `settings-permissions` MCP tool that edits an app's runtime
permissions **out-of-band**, without navigating the system Settings UI.
It's a test-setup / out-of-band tool — the default way to change a
permission is still through the app (in-app toggle or the app-triggered
dialog). Reach for this only when the app can't get there:

- **pre-authorize** (`grant`) or **deny** a permission before the app
asks, so no dialog interrupts the flow
- **re-enable** one the user already denied (iOS never re-prompts once
denied)
- **reset** it so the first-run dialog reappears on next launch

Supported permissions: camera, microphone, photos, contacts,
notifications, calendar, location, location-always, media-library,
motion, reminders.

## How

**iOS simulator** — `xcrun simctl privacy grant|revoke|reset <service>
[bundleId]`.
- `notifications` has no simctl service → surfaced as an unsupported
error.
- An "invalid service" failure (e.g. `camera` on an Xcode that doesn't
model it) is wrapped as unsupported with a hint to list supported
services.
- A shutdown simulator error carries a `boot-device` hint.

**Android** — `pm grant` / `pm revoke` (plus `clear-permission-flags` on
reset) over adb.
- One abstract permission fans out to the concrete
`android.permission.*` set (fine/coarse location, per-media reads);
`location-always` grant also grants foreground location since background
alone is unusable.
- A `pm path` preflight rejects an uninstalled package (`pm
grant`/`revoke` exit 0 for a missing package, which would otherwise
report a false success). A transport-level adb failure is rethrown
rather than mislabeled as "not installed" (`isTerminalAdbError` is now
exported for this).
- Partial results land in `skipped`; the action fails only when pm
rejects **every** mapped permission.

## Supporting changes

- New failure codes: `ANDROID_SETTINGS_PERMISSION_FAILED`,
`IOS_SETTINGS_PERMISSION_FAILED`, `SETTINGS_PERMISSION_UNSUPPORTED`.
- New `argent-settings-permissions` skill, plus cross-references from
`argent-device-interact`, `argent-test-ui-flow`, and the argent rule
(with a strong "prefer the app dialog over this tool" steer).
- `bundleId` is regex-validated (same shell-injection guard as
launch-app/restart-app) and schema-required for grant/deny.

## Testing

`vitest` — **37/37 pass** (schema validation incl. shell-injection
payloads, iOS branch, Android branch incl. partial/total pm failures and
the preflight). `tsc --noEmit` clean for tool-server + registry + tests;
prettier clean.

---------

Co-authored-by: Filip131311 <contact@filipkaminski.com>
2026-07-13 22:45:06 +02:00
filip131311 2196cc18f0 feat(telemetry): anonymous crash diagnostics on toolserver:stop (#494)
## Why

PostHog shows **~9,785 `toolserver:stop` crashes over 90 days**, but
every one collapses into a single bucket — `error_kind=crash`,
`error_code=TOOLSERVER_UNCAUGHT_EXCEPTION`. We know *that* the tool
server died on a top-level throw, never *which* throw. The population is
also two very different things we can't tell apart today:

- **~99%** crash at **<5s uptime with 0 tool calls** — startup faults,
and heavily concentrated per-user (top 10 users ≈ 31% of all crashes;
one user logged 1,027), i.e. **boot → crash → relaunch loops**.
- **~1,000** crash after **>10 min** of real serving — genuine runtime
bugs.

Without the actual exception, all 9,785 rows are unrankable and
unfixable.

## What

Four **crash-only, provably-anonymous** fields on `toolserver:stop`,
enforced by the existing coded-allowlist sanitizer so **no free text can
ever reach PostHog**:

| field | value | why |
|---|---|---|
| `error_name` | error class name (`TypeError`, …) | "what kind" |
| `error_syscall` | Node's `err.code` (`EADDRINUSE`, `ECONNREFUSED`, …)
| the key discriminator for the startup-loop population (port/socket
conflicts) |
| `crash_fingerprint` | 16-hex hash of the **de-identified** top stack
frames | clusters the same crash across users; input carries no
identity, output is opaque |
| `crash_phase` | `"startup"` \| `"serving"` | splits the two
populations directly |

Turns 9,785 opaque rows into a handful of rankable clusters.

## Anonymity (the hard requirement)

- **No error message, no raw stack.** Those routinely embed
`/Users/<name>/…`, URLs, argv, hostnames, interpolated values — the
highest-PII surface and impossible to reliably scrub. The fingerprint
replaces the message for clustering; `error_name` + `error_syscall` give
the "what kind" without free text.
- **Fingerprint input is de-identified before hashing**
(defense-in-depth on top of the hash): first-party frames → basename
only (drops the home-dir/project prefix), `node_modules` frames →
package-relative tail (drops the user prefix; also collapses the pnpm
`.pnpm/pkg@ver/` layout), `node:` internals kept verbatim, column
dropped. So the *same crash on two machines produces the same
fingerprint*, and no username/path survives even into the hash input.
- **Sanitizer is the final gate.** `error_name`
`^[A-Za-z][A-Za-z0-9_]{0,63}$`, `error_syscall` `^E[A-Z0-9_]{1,31}$`,
`crash_fingerprint` `^[0-9a-f]{16}$`, `crash_phase` a 2-value enum. Any
path/message/lowercase/oversize value is dropped before it can leave the
machine.

## Scope & safety (no leaking crashes out of scope)

- Fields are populated **only** in `crashShutdown` (which forces
`reason="crash"`), so clean idle/signal stops carry none. Verified by
the existing startup-telemetry test (the pre-listener watcher-rejection
crash path stays the bare `{reason,uptime_ms,total_tool_calls}` shape).
- The four keys exist only on `ToolserverStopProps` and only in the
`toolserver:stop` allowlist entry — they can't ride any other event.
- `describeCrash` is **total**: every field extraction is isolated, so a
hostile throwing getter on `.name`/`.code`/`.stack` yields the phase
(and whatever else is readable) instead of turning crash reporting into
a second crash. The crash/exit guarantee — re-entrancy guard, force-exit
timer, `finalExitCode` escalation — is untouched.

## Tests

- New `crash-diagnostics.test.ts`: class-name/constructor-name/primitive
extraction, syscall capture, cross-user determinism (incl. **Windows**
drive-letter paths and **pnpm** layout), node_modules tail,
line-sensitivity, no-stack omission, hostile-getter resilience, and
"never emits a message/stack" confinement.
- `sanitize.test.ts`: crash fields pass when well-formed; dropped for
message-as-name, path/lowercase syscall, wrong-length/uppercase
fingerprint, unknown phase; `ERR_*` accepted.
- Full telemetry suite (278) + tool-server startup test green;
lint/prettier clean.

## Reviewed

Ran an adversarial review pass (anonymity leak-hunt, determinism,
crash-path safety, scope). Ship-ready; all findings were Low/Nit and the
actionable ones (hostile-getter hardening, Windows/pnpm test coverage,
`error_syscall` doc clarity) are folded in.

### Deliberately deferred (documented, not blockers)
- Sanitizer doesn't *cross-gate* the crash fields on `reason==="crash"`
— the per-field validator design has no sibling access; coupling is
enforced in emit code. The fields are non-identifying regardless, so a
hypothetical stray `crash_phase` on an idle stop is a data nit, not a
leak.
- First-party frames reduce to basename; if `dist` ever ships unbundled
with duplicate basenames, two sites at the same line could collide.
Non-issue for the bundled tool-server.
2026-07-13 22:16:33 +02:00
Jakub Piasecki 551c781fb0 feat(flow): support running end-to-end flows without agent (#429)
# Flow E2E

This PR turns flows from replayable tool-call recordings into a
declarative, portable e2e test system that runs headlessly via `argent
flow run <name>` — no LLM in the loop, non-zero exit on failure,
suitable for CI.

Agents can still replay flows via `flow-execute` and get the full output
from each step after it finishes.

## Flow format

Flows are YAML files in `.argent/flows/`, now built from **directives**
interpreted by the runner rather than raw tool calls:

- `launch` — terminate + relaunch the app under test (per-platform app
id map supported); its presence marks a flow as **e2e** (controls its
own start state) vs. a **fragment** (runs against current state,
declares an `executionPrerequisite`, composable via `run:` with
cycle/depth guards).
- `tap`, `type` (focus handshake + optional submit), `scroll-to`
(momentum-free, increments by half the container, `within:` for nested
scrollers), `await`/`assert` (`visible`/`exists`/`hidden`/`text`
conditions), `wait`, `snapshot`, `echo`, and raw `tool:` as escape hatch
— still fully supported, so previously recorded flows keep working
unchanged.
- **Selectors** are `{ text, identifier, role }`; a bare string is a
loose selector resolving identifier-first, then visible text. Any
directive failure hard-stops the flow; later steps report `skip`.

## Execution engine

- Flows store no device id — the runner binds a device at replay
(explicit `--device`/`--platform` or the single booted one).
- Selector resolution runs against **platform-unified UI trees**: iOS
native view hierarchy (full testID coverage, gated on native-devtools
connecting), Android full accessibility hierarchy (full resource-id
coverage), Chromium CDP DOM, and the Vega automation toolkit. A shared
flatten/text-hoisting pass lets `text` assertions read what an
identified container visibly shows. Vega is remote-driven, so touch
directives fail with guidance to use `tv-remote`/`keyboard`.
- Steps wait for the tree to **settle** (two consecutive identical
reads) before acting; `launch` additionally gates on platform
tree-source readiness instead of silently degrading.

## Visual snapshots

`snapshot` diffs a full-resolution screenshot against baselines in
`.argent/flows/__baselines__/<flow>/`, keyed by platform + resolution,
with configurable `maxMismatch` and `--update-baselines`. The status bar
is pinned for the whole run (iOS `simctl status_bar`, Android demo mode)
so clocks/battery don't drive diffs. Baseline/current/diff images are
returned as artifacts on failure (and the written baseline on first
capture/update); a clean pass carries none, keeping reports and agent
context lean.

## Recording

The record-live workflow (`flow-start-recording` → `flow-add-step` →
`flow-finish-recording`) now emits directives automatically: coordinate
taps are rewritten to portable selector `tap:` steps (selector captured
from the pre-tap tree), a leading `restart-app` becomes `launch:`,
`flow-execute` of a sibling fragment becomes `run:`, and device ids are
stripped. The skill instructs the agent to polish the saved YAML
afterwards (fold tap+keyboard into `type:`, swipes-to-reach into
`scroll-to:`, awaits into sugar form).

## Also included

- `argent flow run` / `argent flow list` CLI with per-step report
rendering, artifact materialization, and `--json` output.
- New structured failure codes for flow validation, device resolution,
composition, and devtools readiness.
- Extensive unit test coverage (tree adapters, selector matching,
scrolling, composition, type focus, snapshots, status bar).
2026-07-13 17:15:01 +02:00
Hubert Gancarczyk f002fc9540 feat(telemetry): track Argent Lens design-review funnel (#478)
## What

Adds three privacy-safe telemetry events for the Argent Lens
design-review flow, capturing the human-decision funnel that the generic
`tool:*` path can't see (submission is an HTTP POST, and the
`await_user_selection` tool is hidden in `argent lens` CLI sessions):

- **`lens:preview_opened`** — a human loaded the preview UI (`GET
/preview/`), deduped per round.
- **`lens:round_completed`** — the human submitted their picks (once per
round, never on a resubmit).
- **`lens:round_abandoned`** — a staged round was discarded before
submit (window closed, `argent lens` exited mid-review, or the round
superseded).

## Privacy

Payloads carry only aggregate counts, booleans, durations, and the
device `platform` enum — never element names, comment text, variant
code, file paths, or raw device ids. The store emits privacy-safe
aggregate structs that are decoupled from the telemetry package;
structural assignability to the event props is enforced at the `track()`
call site (drift is a compile error).

## Event fields

- **`preview_opened`**: `round, element_count, variant_count,
is_cli_session, platform`
- **`round_completed`**: `round, element_count, variant_count,
annotation_count, element_comment_count, skipped_comment_count,
has_global_comment, is_cli_session, had_parked_await, round_duration_ms,
platform`
- **`round_abandoned`**: `round, element_count, variant_count,
had_parked_await, is_cli_session, platform`

## Testing

- Unit tests for all three events: per-round dedup, exactly-once
completion (no resubmit re-emit), abandoned vs happy-path roll, CLI
up-front open, and content-agnostic privacy assertions.
- Verified end-to-end against a live tool-server: all three events fire
with correct aggregate values and zero content leakage through the real
sanitize pipeline.

---------

Co-authored-by: Ignacy Łątka <latkaignacy@gmail.com>
2026-07-13 16:56:49 +02:00
Ignacy Łątka a5c6730d05 feat(ios-profiler): attributable memory leaks via malloc_stack_logging (#351)
## What

Opt-in `malloc_stack_logging` flag on `native-profiler-start` that makes
iOS memory leaks **attributable** — they come back with a real
responsible frame + library instead of `<Call stack limit reached>`.

## Why

`native-profiler-start` attaches to the already-running app. iOS records
malloc allocation backtraces only when `MallocStackLogging` is set **at
process launch**, so an attached app has none: Instruments' Leaks
scanner finds the leaked blocks but can't attribute them and emits the
placeholder `<Call stack limit reached>` (that string is Instruments',
not ours).

## How

When `malloc_stack_logging: true`, the profiler cold-launches the app
**under** xctrace instead of attaching:

```
xctrace record --template <Argent.tracetemplate> --device <udid> \
  --env MallocStackLogging=1 --output <…> --no-prompt \
  --launch -- <App.app>
```

- `.app` path resolved via `simctl get_app_container`; the running
instance is terminated first for a clean cold start.
- The existing Leaks export / parser / render path is reused
**unchanged** — no parser changes.
- Default behaviour is untouched: attach to the running app (no
relaunch, no overhead). The flag is opt-in because it restarts the app
(loses state) and adds allocator overhead — for leak-attribution passes,
not CPU/hang work.
- The report relabels unattributable leaks with a hint to re-run with
`malloc_stack_logging: true`, instead of surfacing the raw placeholder.

## Evidence (real iPhone 16 sim, same scroll workload)

Before (attach) — every leak row:
```
responsible-frame="<Call stack limit reached>" responsible-library=""
```
After (`--env MallocStackLogging=1 --launch`) — same Leaks export:

| leaked-object | responsible-frame | library |
|---|---|---|
| Malloc 1008 B ×3 | `itanium_demangle::OutputBuffer::grow(...)` |
libc++abi |
| Malloc 48 B ×1 | `hermes::vm::JSTypedArrayBase::createBuffer(...)` |
hermes |

## Tests

- `test/ios-instruments/malloc-stack-logging.test.ts` — the malloc
launch argv (`--env MallocStackLogging=1`, `--launch -- <app>` last,
with and without `--notify-tracing-started`, `--no-prompt`) vs default
`--attach`; terminate-first / get_app_container ordering; failed-start
behavior; per-test `ARGENT_IOS_CAPTURE` scrubbing.
- `test/ios-instruments/leak-attribution-render.test.ts` —
unattributable vs attributed leak rendering, capture-mode-aware hints.
- `test/ios-instruments/load-freshness.test.ts` — per-capture residue
clearing on `profiler-load`, live/recovery-pending load refusals.
- `test/ios-instruments/stop-recovery.test.ts` — capture-mode pairing at
stop (clean and recovery paths).
- `test/profiler-combined-leaks.test.ts`,
`test/profiler-leak-stacks.test.ts`, `test/ios-leak-pipeline.test.ts` —
shared caveat line, evidence-first hints, attribution-normalized
grouping.
- Full `test/ios-instruments/` suite green (9 files / 70 tests); full
tool-server suite green; `tsc --noEmit` + `tsc -p tsconfig.test.json`
clean.

## Notes

E2E'd live twice during review (real iPhone 16 Pro / iPhone 17 Pro sims
on Xcode 26.6): guard refusals fire before the app is touched, the
`--device` cold launch's deadlock on degraded Xcode is confirmed (so the
guard is warranted), and the malloc argv/terminate/relaunch behavior
checked out on-device. Docs updated: `IOS_PROFILER_REFERENCE.md` and the
`argent-native-profiler` skill.

## Review follow-ups (post-approval hardening)

Later commits address the remaining review threads and several
subsequent multi-lens review passes:

- **Capture-mode is a real signal, end to end.** The session records the
mode of the in-flight recording at start
(`recordingMallocStackLogging`), pairs it with `exportedFiles` at stop
(`mallocStackLogging`), and freezes it into `parsedData` at analyze/load
— so the analyze report, the combined report, and the `leak_stacks`
drill-down all name the capture mode of the data they actually render
instead of inferring it (or mislabeling it after a newer capture
starts). One shared `renderUnattributedLeaksNote()` keeps the wording
identical across reports, and attribution evidence outranks the flag: a
resolved frame proves the target ran under malloc stack logging however
it was launched.
- **`profiler-load` restores a clean slate.** Loading clears all
per-capture residue (capture mode, `cpuFilterPid`, `wallClockStartMs`,
`traceFile`) so a loaded trace is never analyzed with a previous live
capture's PID filter, freshness anchor, or report path — and refuses to
load while a recording is in flight or a crashed capture awaits
`native-profiler-stop`'s partial-trace recovery, which the load would
otherwise orphan.
- **Failed starts are non-destructive.** Per-capture descriptors — and
the recovery flags that gate `native-profiler-stop`'s partial-trace
export — are stamped/reset only on a successful start, so a failed
attempt leaves the previous capture's still-loaded exports fully
described and a pending abnormal-end recovery intact.
- **Guards keep session state coherent.** `profiler-load`,
`native-profiler-analyze`, and `profiler-combined-report` all refuse
while a recording is in flight or a crashed capture awaits recovery, via
one shared `isCaptureInFlight`/`inFlightGuardMessage` helper whose
message distinguishes recording vs 10-min-cap timeout vs unexpected exit
(so the stated cause matches what `native-profiler-stop` reports next).
Proceeding would otherwise wedge the session (load) or render one
capture's frozen data under another's live fields (analyze/combined).
- **The combined report anchors on a frozen clock.** The recording's
start time is frozen into `parsedData` at analyze, and the iOS combined
report anchors its hangs to that frozen value rather than the live
session field — so a capture started after analyze can never shift a
real hang↔commit correlation into "unmatched". Android keeps its live
anchor (it re-derives hangs from the live trace). The combined-report
guard's recovery advice routes through `native-profiler-analyze`, the
only step that rebuilds `parsedData`.
- **Leak grouping is attribution-normalized.** `aggregateLeaks` keys on
`(objectType, frame-normalized-the-way-isLeakAttributed-matches)`, so
mixed unattributed spellings (`Unknown`, the sentinel, whitespace
variants) can't split one group per type.
- **The malloc launch target is unambiguous.** Since the cold launch
terminates the resolved app, `app_process` resolution prefers an exact
`CFBundleExecutable` match and, when builds still tie (dev + prod
sharing an executable/display name), refuses and points at the
globally-unique `CFBundleIdentifier` — which it also accepts as an
`app_process` — instead of killing whichever app the plist enumerates
first.
- **Report tables escape `|`.** Demangled C++ frames (`operator|`
included) are real headline content under malloc mode; every free-form
cell across the leak, CPU-hotspot, function caller/callee, and
thread-breakdown tables — symbol *and* thread/queue-name columns — is
escaped so a stray pipe can't shift the row's columns.
- **Android start is non-destructive too.** `startNativeProfilerAndroid`
now starts perfetto before mutating session state, mirroring iOS, so a
failed start no longer burns a prior capped capture's pending
partial-trace recovery.
2026-07-12 13:42:23 +02:00
Ignacy Łątka 44b38d490e fix(tool-server): inject Android keyboard/button over adb input (#449) (#455)
## What & why

`keyboard` and `button` drive Android through the simulator-server's
USB-HID transport (`pressKey` / `cmd:"button"`). The guest only receives
those HID events when the AVD exposes a hardware keyboard (`hw.keyboard
= yes`) — the default, but CI / headless AVDs are routinely created with
`hw.keyboard = no` (and `hw.mainKeys = no`), where the guest **silently
drops** them. Because that transport is fire-and-forget, both tools
returned `{ typed }` / `{ pressed }` **success while injecting
nothing**.

This still affects current `main`: after the keyboard refactor,
`makeAndroidImpl` routes Android **TV** to `adb input` but Android
**phones/tablets** still to `typeSimulatorServer` (the HID path).

Fixes #449 (found during 0.13.0 RC E2E testing on a `hw.keyboard=no` AVD
— `argent-test-ci-repro`, the config CI uses).

## Change

Route Android **phone/tablet** key / text / button injection through
`adb shell input text` and `input keyevent` (new
`utils/android-input.ts`), the same on-device transport Android TV and
Vega already use:

- **`keyboard`** — `platforms/android.ts` now sends the non-TV branch to
a `typeAndroidPhone` helper (adb `input`); the Android-TV and iOS
branches are untouched.
- **`button`** — the Android branch presses via `injectAndroidKeycode`;
iOS keeps the simulator-server HID path.

`adb input` lands regardless of `hw.keyboard`, on emulators (any config)
and physical devices alike, and a non-zero exit surfaces as a **thrown
error** instead of a silent no-op — directly addressing the
fire-and-forget concern already called out in the `button` tool. Touch
gestures are unchanged.

## Verification

- **Unit tests — 11/11 pass** (rebased on current `main`): new
`keyboard-android.test.ts` (vocabulary parity vs `NAMED_KEYS`, `input
text` shell-quoting incl. spaces, `input keyevent` mapping, empty-text
no-op, newline rejection) + updated `button.test.ts` (Android `back` now
asserts `KEYCODE_BACK` over adb).
- **eslint** on the changed files: clean.
- **Live tool-server** on a `hw.keyboard=no` AVD: the `keyboard` tool
now issues `adb … shell input text '…'` (vs the RC's HID `pressKey`),
and a failed inject **raises an error** rather than a fake success. The
`adb input` path was independently observed typing/deleting on this
exact AVD during RC testing (where the HID path silently no-op'd).
- Note: a full `tsc --build` / whole-suite run couldn't be completed in
my environment (the `argent-private` submodule isn't checked out, which
breaks the npm workspace install, and `main` added upstream deps my base
lacked). `platforms/android.ts` mirrors the existing `platforms/ios.ts`
branch structure one-for-one, and the pre-rebase revision of this change
passed `tsc --build` + eslint. CI here is authoritative for the full
typecheck.

## Reviewer notes

- `input text` receives the string as one shell-quoted argv token, so
spaces are preserved verbatim; newlines are rejected (they'd truncate
the `input` line) — callers use `key: "enter"`.
- `keys` counts by codepoint, matching the tv/vega/simulator-server
backends.
2026-07-10 12:51:24 +02:00
Ignacy Łątka b1cadd7cd6 fix(native-devtools): terminal state for non-injectable Apple system apps (#459)
Fixes #453

## The bug

For an app that can never be injected (an Apple built-in app such as
`com.apple.Preferences`), `native-devtools-status` kept reporting
`requiresRestart: true` / `nextLaunchWillBeInjected: true`, and the
native-* feature tools (native-describe-screen, native-find-views, etc.)
kept returning "restart-app then retry". Restarting never changes the
state, so an autonomous agent loops `restart-app → retry` forever. There
was no terminal "this app cannot be injected" signal.

## Why these apps can't inject

Apple system/built-in apps (bundle ids under `com.apple.`) are platform
binaries with library validation enabled; the simulator ignores
`DYLD_INSERT_LIBRARIES` for them, so the Argent native devtools dylib
can never load. This is a reliable, well-understood signal on the
simulator. Third-party apps the user installs carry no such restriction
and inject fine. So the fix treats bundle ids starting with `com.apple.`
as non-injectable, via a general predicate rather than hardcoding the
single bundle id from the issue.

## The fix

- New pure predicate `isInjectableBundleId(bundleId)` in
`blueprints/native-devtools.ts` returning `false` for `com.apple.*`
bundle ids (case-sensitive prefix, matching how bundle ids are
compared), with a doc comment explaining the library-validation
rationale.
- New failure code `NATIVE_DEVTOOLS_NOT_INJECTABLE` in
`@argent/registry`.
- `precheckNativeDevtools(api, udid, bundleId)` (the 3-arg overload) now
throws a terminal `FailureError` with that code, *before* the
`requiresAppRestart → restart_required` branch, when the bundle id is
non-injectable. Because every native-* feature tool awaits this precheck
and propagates the throw, all 7 tools now surface a hard, terminal error
instead of an unbounded restart→retry instruction — no change needed in
the individual tool files. The 2-arg overload (no bundleId), used by
`native-devtools-status`, is unchanged and never throws (guarded by
`bundleId !== undefined`).
- `native-devtools-status` now *reports* the state instead of throwing:
it adds an `injectable: boolean` field. For a non-injectable app it
returns `injectable: false, requiresRestart: false,
nextLaunchWillBeInjected: false` (with
`envSetup`/`appRunning`/`connected` still measured), giving an agent
that checks status first a terminal signal. The tool description
documents the new field and that `injectable: false` is terminal (do not
restart/retry; use the standard describe / screenshot / view-at-point
tools).

## Verification

- `npm run build` (root tsc): clean.
- `vitest run` on `native-devtools-status.test.ts`: 13/13 passing. Added
coverage for the predicate, the status terminal state for a
`com.apple.*` app, and that the 3-arg precheck throws
`NATIVE_DEVTOOLS_NOT_INJECTABLE` while the 2-arg overload does not throw
for the same api.
- Telemetry `sanitize.test.ts` (iterates every registered failure code):
49/49 passing — the new code is accepted.
- Prettier + eslint (`--max-warnings 0`) clean on all touched files.

Device E2E on an iOS simulator with `com.apple.Preferences` (confirming
`native-devtools-status` returns `injectable: false` and the native-*
tools return the terminal error rather than looping restart-app) is
pending and will be run separately.
---

### Device verification (iOS 18.5 simulator, com.apple.Preferences)

Reproduced before/after on a real simulator with a dev tool-server:

**Before (origin/main):** `native-devtools-status` for
`com.apple.Preferences` → `requiresRestart:true,
nextLaunchWillBeInjected:true`; `native-describe-screen` →
`restart_required`; after `restart-app` the status is identical (the
infinite loop).

**After (this branch):**
- `native-devtools-status` → `{envSetup:true, appRunning:true,
connected:false, requiresRestart:false, nextLaunchWillBeInjected:false,
injectable:false}` — terminal.
- `native-describe-screen` / `native-find-views` → terminal error:
"com.apple.Preferences is an Apple system app ... can never be injected
... use the standard describe / screenshot / view-at-point tools
instead." (no more restart→retry loop).

**Regression (injectable third-party app `xyz.blueskyweb.app`):**
`native-devtools-status` → `injectable:true` with the normal
`requiresRestart:true`; `native-describe-screen` → the normal
`restart_required` (not the terminal error). The predicate does not
false-positive on normal apps.

---

### Review follow-ups (@hubgan on-device review)

- **Recovery guidance no longer recommends `view-at-point`.** Both
view-at-point tools run this same 3-arg precheck and re-throw
`NATIVE_DEVTOOLS_NOT_INJECTABLE` for a `com.apple.*` bundle, so
recommending them dead-ended the agent. All three surfaces (the precheck
throw, the `describe` iOS fallback hint, and the
`native-devtools-status` description) now share one verbatim "do not
fall back to the native-* tools" warning
(`NON_INJECTABLE_NATIVE_WARNING`) and recommend only `describe` and
`screenshot`. (52b888ce)
- **Propagation tests for all six feature tools.** Added tests that
drive each 3-arg feature tool's `execute()` with a `com.apple.*` bundle
and assert the throw propagates out as `NATIVE_DEVTOOLS_NOT_INJECTABLE`,
so a future try/catch inside a tool can't silently regress the terminal
behavior (proven non-vacuous via a swallow-the-throw mutation).
(52b888ce)
- **Degraded sim + system app keeps the re-boot hint.** When the
ax-service is degraded, `describe` now returns the `boot-device
force=true` guidance instead of the terminal screenshot hint - a proper
re-boot may let the ax-service read the system app's full tree.
`should_restart` is still never set, so the restart loop stays removed.
(5ace8be3)


---

### Second review round (@hubgan) + follow-up hardening

- **Terminal check hoisted above env init in the precheck.**
Injectability is a static property of the bundle id, so the
`NATIVE_DEVTOOLS_NOT_INJECTABLE` throw now fires before the
`givenUp`/`ensureEnvReady` plumbing - a broken env can no longer mask
the terminal signal behind `init_failed`'s re-boot guidance, and no env
work is spent on a system app. Regression tests cover both masked paths.
(ca7093c6)
- **The same ordering applied to the other two surfaces.**
`native-devtools-status` computes the injectable gate before the
precheck (a given-up sim no longer hides `injectable: false` behind
`init_failed`), and `describe`'s gate moved ahead of native-devtools
service resolution (a downed ios-remote tunnel or dispose race no longer
swallows the terminal hint). (bef6dfcb)
- **Unreachable-sim fallback.** If the status tool's `isAppRunning`
probe fails on a non-injectable app (shut-down sim), it falls back to
the precheck so a broken sim still surfaces structured `init_failed` -
whose re-boot guidance IS corrective there - instead of a raw subprocess
error; a healthy env rethrows the probe failure. (722b432a)
- **Warning text scoped to the tools it is true of.**
`NON_INJECTABLE_NATIVE_WARNING` now names the six injection-based
feature tools instead of sweeping in all `native-*` tools - the
`native-profiler-*` tools never inject and keep working on system apps.
(bef6dfcb)
- **launch-app / restart-app boundary pinned.** New tests drive both
tools (local iOS and ios-remote dispatch, all four call sites) with
`com.apple.Preferences` and the real precheck, asserting the terminal
throw never reaches them - proven non-vacuous by a 3-arg mutation
failing exactly the mutated sites. (bef6dfcb, 722b432a)
2026-07-10 12:51:05 +02:00
Gabe Debes 10a78d0527 feat(file-inputs): add tar-upload kind for streaming remote file/directory uploads (#443)
## What

A new `tar-upload` file-input kind so a tool that reads a local file or
directory (e.g. `reinstall-app`'s app bundle) works when the tool-server
runs on a different machine than the caller.

## Why

`reinstall-app` assumes the bundle is on the tool-server's filesystem.
That breaks with a cloud-hosted simulator — the bundle is on your
machine, not the server's. The existing `file` kind inlines base64 and
is capped at 32 MB, too small for a real `.app`/`.apk`; `tar-upload`
streams instead.

## How

When you're not linked to a remote server, an existing local path is
used in place.

When you are (e.g. `argent link`), the client tars the path, streams it
to `POST /upload`, and the tool call carries `uploadId` plus a SHA-256
`contentHash`. The server always extracts from that upload — even if the
same path already exists on disk — verifies the hash, and vets tar
members before extracting.

The client only uploads when the path is on its own machine (a line on
stderr so you know it's working). Same command local or remote:

```
argent run reinstall-app --udid <udid> --bundleId <id> --appPath ./MyApp.app
```

## Shared extraction

Per review feedback, the tar pack/unpack logic is unified in a small
`@argent/archive` package used by **both** directions — this upload path
and the pre-existing artifact download (`streamDirectoryAsTarGz` /
`downloadAndExtractArchive`). The shared extractor rejects
path-traversal entries, symlinks whose target escapes the extract dir,
and non-file/dir members (hardlinks, devices) — while still allowing a
bundle's internal symlinks. This also hardens the artifact-download
path, which previously extracted without those checks.

## Tests

Client + server unit and HTTP round-trip tests: dir and file upload,
skip-when-not-local, co-located no-op, hash required, path-traversal /
escaping-symlink / hardlink rejection, sidecar handling, single-member
resolution, `/upload` auth + size caps, and artifact download
extraction. All suites pass.

---------

Co-authored-by: Filip131311 <contact@filipkaminski.com>
2026-07-10 12:29:48 +02:00
Stanisław Chmiela a7775e4ba6 feat(tool-server): add tool-server event log (#367)
We want to display a nicely parsed and rendered log of events that
happened over a span of an Argent session.

Current log file is not designed to be machine-readable, so adding a
JSONL-formatted log of events (gated by `tool-server-event-log`).

I eventually want this 😋
https://x.com/j3nnings/status/2069072177584849192

When enabled, the tool server writes Bunyan-compatible records to
`ARGENT_EVENT_LOG` or `~/.argent/tool-server-events.jsonl`. The log
captures tool-server lifecycle events and registry lifecycle events,
including tool invocations and others.

To make messages nicer, added `interaction` object to tool definition.
This allows tools to define a nicer message in log (print "Screenshot
capture completed." instead of "Tool `screenshot` completed.") Adding
these to the existing tools is a follow up PR matter I think.
2026-07-10 11:52:28 +02:00
filip131311 4d34a689b5 feat(tool-server): add ARGENT_SIMULATOR_NO_WINDOW to force headless iOS boots (#483)
## What

Adds `ARGENT_SIMULATOR_NO_WINDOW` — the iOS analog of the existing
Android `ARGENT_EMULATOR_NO_WINDOW` env var — to force local iOS
simulator boots to run headless.

## Why

`ARGENT_EMULATOR_NO_WINDOW=1` already makes Android emulators boot
headless host-wide (appends `-no-window`). iOS had no env-var
equivalent: it could only boot headless via the per-call `headless:
true` parameter on the `boot-device` tool, which is awkward for
CI/containers and Argent Lens hosts that stream every device through
`simulator-server` and never want a window.

Note: `simctl boot` is already headless at the core — the only thing
that pops a window is the `open -a Simulator.app` GUI attach at the end
of `bootIos`. This env var gates exactly that step.

## Changes

- `boot-device.ts`
- New `iosHeadlessFromEnv()` helper next to Android's
`selectExtraEmulatorArgs()`, with identical truthy parsing
(`1`/`true`/`yes`, case-insensitive).
- `bootIos` GUI-attach gate changed from `if (!headless)` → `if
(!headless && !iosHeadlessFromEnv())`.
  - Updated the `headless` param docs to mention the env var.
- `boot-device.test.ts` — new test asserting `Simulator.app` is not
opened when `ARGENT_SIMULATOR_NO_WINDOW` is set (env saved/restored
around the test).

## Scope

Applies to the local iOS path (`bootIos`). The remote path
(`bootIosRemote` via `sim-remote`) has no local `Simulator.app` step, so
it's unaffected.

## Testing

- `npx tsc --noEmit` — clean
- `npx vitest run test/boot-device.test.ts` — 23/23 pass (incl. the new
test)
2026-07-08 17:22:31 +02:00
filip131311 7bd017a796 feat(installer): committable repo-local (--local) install mode (#428)
## Summary

Adds an opt-in **committable / repo-local** install mode so a team can
version Argent _with the repo_. `argent init --local` installs
`@swmansion/argent` as a project **devDependency** and writes MCP
configs that launch the project-local copy — so after `git clone && npm
install`, every teammate has the same Argent version and MCP wiring with
**no global install and no per-developer `argent init`**.

**Global mode stays the default** and is unchanged; everything here is
additive and backward-compatible.

Motivation: the workflow some users already do by hand (#207).
Supersedes the earlier, since-closed #232 — this version is Windows-safe
(`node`, not the `.bin` shim), handles Yarn PnP, and closes the
cross-install tool-server hazards rather than leaving them.

## What changed

**`init`**
- `--local` / `--global` flags + an interactive "How should argent be
installed?" prompt. Mutually exclusive; non-interactive (`--yes`)
defaults to **global**.
- Local mode installs the devDependency with the package manager
detected from the project's **lockfile** (run with `cwd = projectRoot`).
- MCP entry points at the local copy: `node
node_modules/@swmansion/argent/dist/cli.js mcp` (the bin path is derived
from the installed `package.json` `bin` and existence-checked — forward
slashes, committable, Windows-safe). Yarn PnP → `yarn argent mcp`; an
`npx --no-install argent mcp` fallback is used only when the bin can't
be resolved.
- Records the mode in a committed `<root>/.argent/install.json`.
- Drops global-only adapters (Windsurf/Hermes) in local mode; prints
team-setup / commit guidance.

**`update`** — detects the project's mode; in local mode reads the
installed version from `node_modules` (not the global binary / npx
cache) and bumps the **devDependency + lockfile**, then re-emits the
local MCP command.

**`uninstall`** — scoped to the project's mode: a local-mode uninstall
removes the **local devDependency only and never the shared global
install**, and prunes `.argent/install.json`. Global-mode behavior is
unchanged.

**Cross-install hardening (the gate that makes per-project pinning
safe)**
- `launcher`: a tool-server is reused only when its `bundlePath` matches
the caller's — a repo-local pin never silently runs against (or kills) a
different version's server.
- `postinstall`: only stops a tool-server spawned from *this package's
own* bundle, so a devDependency install can't tear down an unrelated
editor session.

**Telemetry** — adds an `install_mode` dimension to
init/update/uninstall events.

## Testing

- New unit tests: install-mode helpers + record (`utils`), mode-aware
`getMcpEntry`/`resolveLocalCommandMode` incl. the opencode array form
(`mcp-configs`), local-only uninstall guard (`uninstall`), and
bundlePath-gated tool-server reuse (`launcher`).
- All existing suites green (installer 346, tools-client 115, telemetry
191, registry 83, argent 13, tool-server 1621). Build + lint clean.
- **Live end-to-end** in an isolated sandbox: `init --local` → real MCP
stdio handshake serves **69 tools from `node_modules`**; `update
--local` reads the local version; `uninstall --local` removes the local
install and **leaves the global install intact**; `init --global`
unchanged; flag conflict rejected.

## Notes / known limitations

- Recommended on mainstream platforms (macOS, Linux x64, Windows x64)
with prebuilt native binaries; Linux arm64 / Windows arm need a C/C++
toolchain to build `tree-sitter` on `npm install` (documented in the
README).
- Concurrent sessions of two *different* Argent versions on one machine
each spawn their own tool-server; an orphaned one idle-times-out (no
session is ever broken).

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-07-08 12:24:19 +02:00
Hubert Gancarczyk f38f0e3876 feat(telemetry): distinguish tvOS and Android TV from iOS/Android (#477)
## Summary

Telemetry inferred the device platform purely from device-id **shape**
on the per-tool-call hot path, so a tvOS simulator (same 8-4-4-4-12 UUID
as an iPhone) and an Android TV emulator (same `emulator-NNNN` serial as
a phone) were both reported as `ios` / `android` — TV usage was
invisible in analytics.

This adds `tvos` and `android-tv` to the **telemetry** `PLATFORMS` enum
and refines the inference so a TV target is attributed correctly.

## Approach

- The runtime kind (`mobile` / `tv`) is already resolved and memoized in
two module-level caches (`runtimeKindCache` in `ios-devices.ts`,
`androidRuntimeKindCache` in `adb.ts`), warmed by the usual TV-path
tools (describe, screenshot, keyboard, launch/restart-app, the streaming
blueprint, tv-control).
- New synchronous, **cache-only** readers
(`getCachedSimulatorRuntimeKind`, `getCachedAndroidRuntimeKind`) let
`refineTvPlatform` in `http.ts` map `ios → tvos` / `android →
android-tv` with **no new `simctl`/`adb` round-trip** on the hot path.
- The registry **device** `Platform` (`@argent/registry`) is
intentionally left unchanged — a TV stays a `runtimeKind`, not its own
device platform, so capability gating and dispatch remain TV-agnostic.
The two new values are confined to the telemetry boundary (`tool:invoke`
/ `tool:complete` / `tool:fail` and child sub-tool attribution).

## Behavior notes

- The **first** tool call on a device may land before the cache is warm
and reports the coarse base platform (`ios`/`android`); subsequent
calls, once describe/screenshot/streaming have run, report the TV
variant. This is best-effort coarse telemetry by design.
- For an `emulator-NNNN` slot reclaimed by a different-form-factor AVD
within one tool-server lifetime, the synchronous reader can momentarily
report the prior occupant's kind until an async, avdName-checked path
re-probes. Documented inline; no crash and no dispatch impact.

## Verification

- **Live E2E** against real booted devices (real `simctl`/`adb` → real
cache → real http telemetry recording): Apple TV → `tvos` (cold-cache
`ios`, warm `tvos`); iPhone → `ios`; Android phone → `android`. The
`android-tv` path is symmetric and covered by unit/integration tests
with real leanback-feature probing.
- Unit + integration tests added: sanitize allowlist, http platform
inference (cold/warm/TV/child), and cache readers. Telemetry suite
192/192; tool-server affected suites green.
- `tsc` build, `typecheck:tests`, eslint (`--max-warnings 0`), and
prettier all clean.
2026-07-07 16:29:22 +02:00
Hubert Gancarczyk 3393d22edd feat(telemetry): derive distinct_id from a stable host fingerprint (#444)
## Summary

Replaces the random-UUID telemetry `distinct_id` with a stable
per-machine id derived from the host fingerprint, so PostHog's native
"Unique users" counts machines (funnels / retention / breakdowns work
with no HogQL). Every Argent entry point - installer, CLI, tool-server,
MCP - derives the id from one shared code path, so a given machine
reports a single identity across every event and across install /
uninstall / reinstall.

## What changed

- `distinct_id = uuidv5(hostFingerprint, NAMESPACE)`, where the
fingerprint comes from `simulator-server fingerprint`. Deterministic,
keeps the UUID shape, and never stores the raw hardware value in PostHog
(only the SHA-1-derived UUID leaves the process).
- The fingerprint is resolved in `buildPayload` - the single `capture()`
path shared by every entry point - so installer / CLI / tool-server /
MCP all produce the same id. Resolved lazily, once per process,
memoized.
- One-time, local-only migration: the first time a fingerprint resolves,
`~/.argent/telemetry-id` is rewritten from the legacy random UUID to the
derived id. No PostHog `alias` / `$identify` event is emitted.
- Fallback: if the fingerprint can't be resolved (unsupported platform,
binary absent), the stored or a fresh random UUID is used - identically
for every entry point on that machine, self-healing to the derived id on
the next successful resolve.
- Hardening: never throws; the fingerprint is validated (exactly 64 hex,
case-insensitive) before hashing; corrupt / empty / unreadable id files
self-heal; the binary is spawned at most once per process.

## Why the id is stable across install -> uninstall -> reinstall

Uninstall deletes `~/.argent/telemetry-id`. Because the id is
`uuidv5(fingerprint)` and the fingerprint is deterministic per machine,
a fresh install recomputes the identical id. Previously only the
tool-server resolved the fingerprint while the installer emitted under a
random UUID, so this cycle produced a different random id each time.

## Bundling note for reviewers

`@argent/telemetry` now depends on `@argent/native-devtools-ios` to
locate the binary. That package computes its bin dir from `__dirname` at
module load, which is undefined in an ES module. The installer / CLI /
MCP ship as ESM bundles, so `bundle-tools.cjs`'s ESM banner is extended
to shim `__dirname` / `__filename` (the CJS tool-server bundle already
has them natively). Without this shim those bundles would crash on load,
so the banner change is load-bearing.

## Testing

- Unit: 219 telemetry tests - RFC 4122 v5 vectors, migration,
idempotency, case/length validation, corrupt-file self-heal,
spawn-at-most-once, and all fallbacks.
- E2E on a real machine + booted iPhone 16 Pro: installer, CLI, and
tool-server runtimes all emit the same derived id; the id is stable
across a delete/recreate (uninstall/reinstall) cycle; a legacy v4 id
migrates locally with no alias/identify emitted; verified from an ESM
bundle placed in the real install's `dist/` so the binary resolves via
the bundled `__dirname` with no env override; tool calls against the
device carry the same id.
2026-07-07 16:28:29 +02:00
Ignacy Łątka 2cefe552d3 fix(argent-lens): strip ELECTRON_RUN_AS_NODE from spawned Electron env (#471)
## Problem

QA report: **Argent Lens preview window never launches** —
`propose_variant` / `await_user_selection` stage variants correctly, but
the native window never appears and `await_user_selection` hangs. The
tool-server log shows the child crashing at launch:

```
dist/preview-window/main.cjs:28
import_electron.app.setName("Argent Lens");
                    ^
TypeError: Cannot read properties of undefined (reading 'setName')
    ...
    at c._load (node:electron/js2c/node_init:2:18095)
```

## Root cause (reproduced & proven)

`import_electron.app` being `undefined` while the JS still executes is
the exact signature of the Electron binary booting in **Node mode**. For
a downloaded, non-fused Electron the only trigger is
`ELECTRON_RUN_AS_NODE` in the environment. In Node mode
`require("electron")` returns the executable *path string* (not the
module), so `.app` is `undefined`.

The tool-server routinely runs under an Electron-based MCP host (VS
Code, Cursor, the Codex desktop app), which sets
`ELECTRON_RUN_AS_NODE=1` in the env of the Node children it spawns.
`createPreviewWindowManager.ensureOpen()` spread `{ ...process.env }`
straight into its Electron child, so the flag leaked in and the child
booted headless as Node → crash before any window.

Verified against the real Electron binary + the real `main.cjs`:

| Env | Result |
|-----|--------|
| `ELECTRON_RUN_AS_NODE=1` | Crashes at `main.cjs:28` — **byte-identical
to the report**, incl. the `node:electron/js2c/node_init` frame |
| unset | Boots as a real Electron GUI, gets past `setName`, only fails
later at `loadURL` |

The wrapper-bundle / code-signing theory in the report was a **red
herring** — the reporter never controlled for the spawn *environment*.
The same node-mode surfaces differently depending on whether the `.app`
wrapper built: plain path → `setName` crash (what they saw); wrapper
path → Node rejects the Electron-only `--no-sandbox` flag (`bad option:
--no-sandbox`). One fix cures both.

## Fix

Strip `ELECTRON_RUN_AS_NODE` before spawning, via a shared
`electronGuiChildEnv()` helper, at **both** GUI-Electron spawn sites:
- `preview-window.ts` — the Lens window (the reported bug).
- `boot-electron.ts` — the same latent flaw would boot a headless CDP
app with **no debug port**, timing out `boot-device --electronAppPath`.

## Verification

- **Root cause** reproduced byte-for-byte, both directions, against the
real binary.
- **End-to-end**: ran the real fixed `ensureOpen()` path via ts-node
with `ELECTRON_RUN_AS_NODE=1` leaked into the parent env against the
real Electron binary — child boots as a real GUI app (`VERDICT: PASS`).
Reverting the one-line fix flips it to `FAIL`, confirming the test
discriminates.
- **Unit tests**: added `electron-env.test.ts` (helper contract) + a
regression case in `preview-window-launch-failure.test.ts` asserting the
spawn env strips the var and keeps the override. 21/21 pass.
- `tsc --noEmit` (build) and `tsc --noEmit -p tsconfig.test.json` (CI
"Unit tests" gate) both clean; prettier + eslint clean on all changed
files.
2026-07-07 13:36:27 +02:00
Piotr Krawiec ab35c5653e fix(describe): descend into Vega WebView (Chromium sub-app) (#474) (#475)
## What & why

Fixes #474. On Vega, `describe` collapsed a `WebView` into a single
opaque node — only the page `<title>` surfaced, none of the DOM.

Root cause: a `WebView` embeds a nested `<app toolkitName="Chromium">`
whose text nodes carry **no `role`** and keep their string in a `<text>`
**element** child. The native RN UIToolkit instead tags text nodes
`role="text"` with **inline** text. `isMeaningful` only counted inline
`node.text`, so every WebView text node looked empty → the whole web DOM
(grid tiles, headings, labels) was judged unmeaningful and flattened
away.

Notably the underlying automation toolkit *does* publish the full
Chromium a11y tree (confirmed by querying the same backend through the
Appium kepler driver) — this was purely a parser-side traversal gap.

## The fix (`source-parser.ts`)

1. **`ownText(node)`** — a node's text is now its inline text **plus**
the text of its direct `<text>` element children. Both `isMeaningful`
and `labelOf` use this one notion (they were already asymmetric:
`labelOf` read `<text>` children, `isMeaningful` didn't).
2. **Sub-span collapse in `convert`** — the Chromium a11y tree
aggregates a container's accessible name **and** repeats it as child
spans (a tile `"10Tile 10"` nests `"10"` + `"Tile 10"`). Children are
dropped only when they are **all plain text spans whose in-order labels
exactly reconstruct the parent's aggregated label** (Chromium joins
inline spans with no separator). Exact reconstruction — not substring
containment — means a distinct `"Play"` under `"Playlist"` (or `"Tile
1"` under `"Tile 10"`) is never swallowed, and a real list whose
container name joins rows with spaces (`"Home Settings About"`) never
reconstructs from its rows, so separately-navigable rows keep their own
frames.

## Verification

- New regression tests in `vega-source-parser.test.ts` (real-device
fixture `vega-webview-grid.xml`): all 12 grid tiles surface; frames
normalize against the window; focused/selected state preserved; exact
sub-spans collapse; **distinct substring child kept**
(`Play`/`Playlist`); **distinct list rows kept with their own frames**
(`Home`/`Settings`/`About`); labelless structural container keeps all
children; structural/interactive same-text child kept.
- Full `tool-server` suite green (one unrelated pre-existing failure:
`await-ui-element.test.ts`, fails on `main` too).
- **End-to-end on a running VVD**: a 12-tile WebView grid now renders
every tile with pixel-accurate frames and live `Selected`/`focused`
state, where `describe` previously returned one opaque node.

### Before / after (live device)

```
# before
view "Argent WebView Grid" [clickable,focused]  (0,0,1,1)

# after
view "Argent WebView Grid" [clickable,focused]  (0,0,1,1)
  header
    view "Argent WebView Grid"
    view "Selected:"  view "Tile 3"  view "|  Activations:"  view "1"
  view "1Tile 1" ... view "12Tile 12"   (each with its own frame)
```
2026-07-07 10:05:42 +02:00
Juliusz Wajgelt 275f4c9968 fix(ios-remote): unblock native-devtools and keyboard on non-macOS hosts (#472)
## Problem

Argent can drive a **remote** iOS simulator (`ios-remote` / `remote:`
device ids) from a non-macOS host via the `sim-remote` CLI. Two tools
that were supposed to work in that setup failed because local-only
guards fired on the remote code path:

1. **native-devtools family** (`native-describe-screen`,
`native-find-views`, keyboard injection, …) threw `... requires a macOS
host` on Linux. Root cause: `requireDarwin()` in
`packages/native-devtools-ios/src/index.ts` gated **every** dylib/binary
accessor — including the **TCP variants** that exist specifically to be
*uploaded to the remote Mac orchestrator*, never executed locally.
`remoteIosHost` reaches those accessors (`setupNativeDevtoolsEnvRemote`
→ `tcpInjectionDylibs()`; `spawnAxDaemonRemote` →
`axServiceBinaryPathTcp()`) *after* the code has already committed to
the remote path, so the gate was redundant and wrong.

2. **`keyboard`** declared `appleRemote: { simulator: true }` capability
but its `dispatchByPlatform` had **no `iosRemote` branch**, so an
`ios-remote` device passed the capability check and then threw `declares
ios-remote capability but has no iosRemote branch` at dispatch. Its
local iOS handler also probes tvOS via local `xcrun`, which can't run
off-Mac anyway — but remote sims are always iOS.

## Change

- **native-devtools-ios**: remove `requireDarwin(...)` from the four
`*Tcp` accessors (`bootstrapDylibPathTcp`, `nativeDevtoolsDylibPathTcp`,
`keyboardPatchDylibPathTcp`, `axServiceBinaryPathTcp`); the existing
file-existence check stays, so a host missing the downloaded TCP
artifacts still gets a clear "not found" error. Local and tvOS accessors
remain darwin-gated (they're `simctl spawn`d on the local host, and
`ios-remote` is iOS-only).
- **keyboard**: add `makeIosRemoteImpl` that skips the tvOS probe and
types straight over `typeSimulatorServer` (which already routes
`ios-remote` through the sim-remote MoQ transport), and wire an
`iosRemote` branch into the dispatch — mirroring how `paste` already
works.

No other changes needed: `boot-device`'s remote path already skips the
darwin check, and the `native-*` tools already preflight the
`sim-remote` dependency for `ios-remote`. An audit of every iOS tool
handler confirmed these two were the complete set of
"advertised-but-blocked" remote services; the profiler / `await-*` tools
are intentionally local-only (they declare `apple`, not `appleRemote`,
and cleanly reject).

## Tests

- `native-devtools-ios`: inverted the two tests that asserted the TCP
accessors throw on Linux — they now assert the TCP dylibs/ax-service
**resolve** on a simulated Linux host, plus a case that a missing
artifact yields a plain not-found error rather than the macOS-host gate.
- `tool-server`: added two `dispatchByPlatform` regression tests —
correct `ios-remote` routing, and the "declares appleRemote but no
iosRemote branch" wiring error that the keyboard bug tripped.
- All package tests pass; both packages typecheck clean.

## Verification

On a non-macOS host with `sim-remote` configured against a remote Mac
sim:
1. Attach a `remote:<uuid>` simulator (`list-devices` shows it as
`ios-remote`).
2. Run `native-describe-screen` / `native-find-views` and the `keyboard`
tool — confirm they operate instead of throwing the macOS-host /
no-branch errors.
3. On macOS, confirm local (non-remote) native-devtools + keyboard still
work (removing the guard is a no-op on darwin).
2026-07-06 17:12:20 +02:00
filip131311 bc04c3b64f perf(argent-mcp): wait for the screen to settle before the auto-screenshot (#464)
## Problem

After an interaction, the MCP layer appends a screenshot so the agent
can see the screen. It first slept a **fixed per-tool delay** — `3000ms`
for `launch-app`/`restart-app`, `2000ms` for `open-url`, `1500ms` for
gestures
([`auto-screenshot.ts`](https://github.com/software-mansion/argent/blob/main/packages/argent-mcp/src/auto-screenshot.ts#L33-L49))
— so the capture wouldn't catch a blank/splash/transition frame:

```ts
const delayMs = getAutoScreenshotDelayMs(params.name);
if (delayMs > 0) await new Promise((r) => setTimeout(r, delayMs));
```

That blind sleep is paid **in full on every call** even when the screen
settled far sooner, and the `ARGENT_AUTO_SCREENSHOT_DELAY_MS` override
is a `Math.max` floor — it can only *raise* the delay, never lower it.
On an agent's relaunch→verify→tap loop the fixed `3000ms` dominates
time-to-interaction.

## Change

Replace the blind sleep with a **bounded readiness wait that runs
tool-server-side**, reusing the polling machinery `await-ui-element`
already has instead of adding a second describe-polling loop.

- **`pollDescribeTree`** (new `utils/poll-describe-tree.ts`) —
`await-ui-element`'s fetch/poll loop, extracted: it re-reads the
`describe` tree on an interval until a caller-supplied predicate holds
or the timeout elapses, racing each fetch against the deadline + abort
via `settleWithin` (moved to `utils/timing.ts`) and clamping the poll
sleep to the deadline. `await-ui-element` now uses this shared loop
(**−77 lines**); its 791-line suite is unchanged and green, so behavior
is preserved.
- **`await-screen-idle`** (new tool) — reuses the loop with a
*stability* predicate: poll until the tree has content whose fingerprint
(role/label/value + frame rounded to 1%) holds identical for
`minStableMs`, bounded by `timeoutMs`. Returns `{ settled, waitedMs,
polls }`.
- **MCP path** — calls `await-screen-idle` **once** (server-side, no
per-poll round trips) with the per-tool delay as the cap. Falls back to
the previous fixed sleep if the tool is unavailable (older / remote
tool-server).

### Why not just `await-ui-element`?

It waits for a **caller-named** element (`{text|identifier|role}` +
`exists|visible|hidden|text`) — its schema requires a selector. After
`launch-app`/`restart-app` there's no element to name, and it has no
"screen settled" condition. So the *predicate* is genuinely different;
only the *loop* is shared, which is exactly what this PR extracts.

## How expensive is the polling?

Measured on a booted **iPhone 17 Pro (iOS 26.4)** relaunching Settings:

| metric | value |
| --- | --- |
| **time-to-ready** | **3000ms → ~1810ms** (~40% faster), `settled`
every run |
| polls per relaunch | 4–5 |
| `describe` cost / poll | ~62ms settled screen, ~290ms mid-launch |
| loop overhead (excl. probe) | negligible |

The cost is entirely the `describe` reads, which run *while the app is
launching anyway* and let the capture fire ~1.2s early instead of
sleeping through it. On slower apps the wait simply extends up to the
same cap — it adapts instead of over-padding.

## Behavior / bounds

- **Never slower than before:** a probe is never started past the
deadline; a screen that never settles falls back to the full cap,
exactly like the old sleep.
- **Static splash screens:** if an app holds a static splash for
`minStableMs` (250ms), the wait can settle on it — the same case the
fixed delay was tuned for; bounded by the cap, so no worse than a
shorter fixed delay.
- **TV / Vega / unsupported:** `await-screen-idle` isn't capable there,
so the MCP path's `catch` falls back to the fixed sleep.

## Testing

- Full **tool-server** suite: **1847 passing** (incl.
`await-ui-element`'s 791-line suite green after the refactor) + 4 new
`await-screen-idle` tests.
- Full **`@argent/mcp`** suite green. `tsc --build`, `eslint`,
`prettier` all clean.
- Net **−68 lines**.
2026-07-03 17:20:01 +02:00
Hubert Gancarczyk ef955e604d fix(telemetry): add missing failure codes (#420)
## Summary

Adds the missing **failure codes** across the tool-server and converts
raw
`throw new Error(...)` sites into classified `FailureError`s, so
operational
failures land in named telemetry buckets instead of falling through to
the
generic `REGISTRY_TOOL_FAILURE_UNCLASSIFIED` bucket.

- **39 new `FAILURE_CODES`** plus a new `"electron"` entry in
`FAILURE_COMMANDS`.
- Throw sites migrated to `FailureError`, each carrying
`error_code` + `failure_stage` + `failure_area` + `error_kind`, and
where
  relevant `failure_command` / `network_failure` / subprocess metadata
  (`failure_exit_code` / `failure_signal` / `failure_spawn_code`).

## Addressing review feedback

The review found that several proposed codes were thrown only on paths
that are
caught / reformatted before the telemetry boundary (a code only buckets
if its
`FailureError` propagates out of a registered tool's `execute`), so they
could
never bucket a real failure. Those are removed rather than left as dead
codes:

- **Dropped
`VEGA_PAGE_SOURCE_{FETCH_FAILED,HTTP_ERROR,RPC_ERROR,TIMEOUT,PARSE_FAILED}`**
- `describeVega` deliberately swallows every toolkit failure (empty tree
+
  relaunch hint) except `MultipleVegaDevicesError`, so these never reach
`toolFailed`. The throw sites revert to plain `Error` (behaviour
unchanged).
- **Dropped `CHROMIUM_CLIPBOARD_FAILED`** (the chromium-server Express
route
reformats the error to a 500 body; the image-copy path has no production
  caller) and **`CHROMIUM_BUTTON_UNSUPPORTED`** (the WS `button` handler
  reformats it; the registered `button` tool is apple+android only).
- **Fixed the `CHROMIUM_CDP_INVALID_RESPONSE` gap** - a reachable
HTTP-200 with a
non-JSON body made `res.json()` reject with a raw `SyntaxError` that
escaped
`fetchJson` unclassified; it is now classified
`CHROMIUM_CDP_INVALID_RESPONSE`
(matching the non-2xx and missing-`webSocketDebuggerUrl` paths).
`AbortError`
  still surfaces untouched.
- **Unified two codes that carried two `error_kind`s** - both
`REACT_PROFILER_NO_ACTIVE_SESSION` sites and both
`PROFILER_NATIVE_TRACE_MISSING`
sites now use `not_found` (a missing session / a trace file missing on
disk),
  keeping telemetry keyed on `error_code` from splitting by platform.
- **Reverted an out-of-scope edit** - the in-flight Vega-boot coalescing
Map-key
  separator is back to its original NUL byte.
- **Added `failure-classification.test.ts` coverage** - expanded from 7
to 17
  pinned codes, reading each back exactly how telemetry does
(`getFailureSignal(err).error_code`) across the chromium CDP discovery
family
(incl. the malformed-200 regression guard), vega input, and
native-profiler
  metadata / stack-query.

This branch also merges the latest `main`; the keyboard tool was
refactored on
`main` into per-platform modules + a `createKeyboardTool` factory, so
the
`KEYBOARD_KEY_UNSUPPORTED` / `KEYBOARD_CHARACTER_UNSUPPORTED`
classifications were
re-homed onto its new throw sites (`platforms/chromium.ts`,
`simulator-server-keys.ts`; the vega path keeps its classification in
`vega-input.ts`).

## What changed

By area (the 39 codes):

- **Chromium / CDP (16)** - discovery, input, viewport, storage, tabs,
describe,
and Electron boot: `CHROMIUM_CDP_UNREACHABLE`,
`CHROMIUM_CDP_NO_PAGE_TARGET`,
  `CHROMIUM_CDP_INVALID_RESPONSE`, `CHROMIUM_PARAM_INVALID`,
  `CHROMIUM_INPUT_INVALID`, `CHROMIUM_VIEWPORT_READ_FAILED`,
  `CHROMIUM_SCREENSHOT_FAILED`, `CHROMIUM_STORAGE_EVAL_FAILED`,
`CHROMIUM_TAB_NOT_FOUND`, `CHROMIUM_TAB_OPEN_FAILED`,
`CHROMIUM_DESCRIBE_FAILED`,
  `CHROMIUM_DEVICE_ID_INVALID`, `CHROMIUM_ELECTRON_APP_PATH_INVALID`,
  `CHROMIUM_ELECTRON_SPAWN_FAILED`, `CHROMIUM_ELECTRON_CDP_TIMEOUT`,
  `CHROMIUM_ELECTRON_EXITED_BEFORE_READY`.
  - Unreachable debug ports are distinguished from reached-but-malformed
responses; the `undici`-wrapped `ECONN*` code is read off `err.cause`
and
    mapped to a precise `network_failure` instead of always reporting
    `connection_refused`.
- **Vega (8)** - device discovery/registration, boot timeouts, image
lookup,
input, and screenshot: `VEGA_DEVICE_NOT_FOUND`,
`VEGA_DEVICE_NOT_REGISTERED`,
  `VEGA_MULTIPLE_DEVICES`, `VEGA_BOOT_TIMEOUT`, `VEGA_IMAGE_NOT_FOUND`,
  `VEGA_ALREADY_RUNNING`, `VEGA_SCREENSHOT_FAILED`, `VEGA_TEXT_INVALID`.
- `MultipleVegaDevicesError` extends `FailureError` so callers that
re-throw it
    (e.g. `describe`) surface a classified signal.
- **Native profiler (8)** - perfetto start failures (mirroring the iOS
xctrace
set), app-process detection, the metadata sidecar, and the shared
analyze
  guard: `NATIVE_PROFILER_PERFETTO_PROCESS_ERROR`,
  `NATIVE_PROFILER_PERFETTO_READY_TIMEOUT`,
  `NATIVE_PROFILER_PERFETTO_READY_EXITED`,
`NATIVE_PROFILER_APP_PROCESS_NOT_FOUND`,
`NATIVE_PROFILER_NO_EXPORTED_TRACE`,
`NATIVE_PROFILER_TRACE_TEMPLATE_MISSING`,
`PROFILER_NATIVE_METADATA_MISSING`,
  `PROFILER_NATIVE_METADATA_INVALID`.
- The iOS `analyze` guard moves off `PROFILER_NATIVE_TRACE_MISSING` onto
the
shared `NATIVE_PROFILER_NO_EXPORTED_TRACE` so the same logical failure
isn't
split by platform; `PROFILER_NATIVE_TRACE_MISSING` now means strictly a
trace
file missing on disk (and both of its sites use `error_kind:
not_found`).
- **Android / simulator / screenshot-diff (3)** -
  `ANDROID_UIAUTOMATOR_CAPTURE_FAILED`, `SIMULATOR_SCREENSHOT_FAILED`,
  `SCREENSHOT_DIFF_INPUT_INVALID`.
- **Flows / keyboard (4)** - `FLOW_PROJECT_ROOT_INVALID` (split from
`_REQUIRED`,
  which now means strictly "no root set yet"), `FLOW_NAME_INVALID`,
  `KEYBOARD_KEY_UNSUPPORTED`, `KEYBOARD_CHARACTER_UNSUPPORTED`.

`error_kind` is reserved consistently: `validation` for checks against
caller
input or a schema we own; `unknown` for malformed output from an
uncontrolled
source (renderer main world, toolkit RPC); `network` with a
`network_failure`
class for transport and reached-but-malformed responses; `not_found` for
a
missing resource / session / on-disk artifact.

## Testing

- `tsc --build` clean - `error_kind` / `failure_area` /
`failure_command` /
`network_failure` and every `FAILURE_CODES.X` are typed, so the compiler
  enforces structural validity of every signal.
- Unit tests: registry **83/83**, tool-server green (the one red
`await-ui-element` case is a pre-existing local-only timing flake
unrelated to
  this change - it fails identically on `main` and passes in CI).
- `failure-classification.test.ts` pins **17** codes, reading each back
via
`getFailureSignal(err).error_code`; the `CHROMIUM_CDP_INVALID_RESPONSE`
  malformed-200 fix is reproduced against a local HTTP server.
- `prettier --check` and `eslint` clean on all changed files.

## Notes

- No new codes are orphaned - every added `FAILURE_CODES` entry has at
least one
  throw site that can reach the telemetry boundary.
- A handful of internal-invariant throws (SQL-template/identifier
guards,
Tesseract-TSV parsing, unreachable `default:` branches) are
intentionally left
  as plain `Error`s - they represent programmer/tooling errors, not
  user-reachable failure modes, so they don't warrant telemetry codes.
2026-07-03 16:56:15 +02:00
Ignacy Łątka 72fea93d7f fix(native-profiler): remove shell interpolation from iOS profiler (device_id + trace export) (#378)
## Summary
The iOS native profiler reached `/bin/sh` by string-interpolating values
into shell-executed commands — the classic command-injection shape. This
PR removes the shell from **every** such call site in the iOS-profiler
subsystem, converting them to argv-array `execFileSync`/`execFile` so no
caller- or path-derived value is ever re-parsed by a shell.

### 1. `device_id` interpolation — gated behind the UDID-shape
classifier (`native-profiler/platforms/ios.ts`)
The profiler interpolated the caller-supplied `device_id` (`udid`)
directly into shell-interpreted `execSync` template strings:
- `execSync(`xcrun simctl spawn ${udid} launchctl list`)`
- `execSync(`xcrun simctl listapps ${udid} | plutil -convert json -o -
-`)`

`device_id` is declared `z.string()` with no format constraint and
`resolveDevice()` returns it unchanged. **However, this sink is not
directly reachable with a hostile `device_id`** (thanks @hubgan for the
catch): before the iOS platform module runs, `classifyDevice()`
(`utils/device-info.ts`) routes by *shape* against an anchored hex-UDID
regex
`^[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}$`.
Any `device_id` carrying a shell metacharacter fails that (anchored,
hex-only) match, classifies as **Android**, and takes the argv-based
`adb -s <serial> shell …` path — it never reaches this iOS function.
Conversely, any value that *does* classify as iOS is, by the regex,
metacharacter-free. So on `main` the original `execSync` was **dormant /
defense-in-depth**, gated behind the classifier invariant, not an
exploitable path from a tool parameter.

The conversion is still worthwhile: it removes the code's reliance on
that classifier invariant (if the shape regex were ever loosened, or the
sink reached by a future refactor with a synthetic `platform: "ios"`,
the shell would be back). Fixed by converting both call sites to
`execFileSync` arg-arrays — the `simctl listapps | plutil` pipe is split
into two in-process stages so nothing is shell-interpreted.

This anti-pattern previously had a fix on an old branch that was lost
when the code moved from
`tools/profiler/ios-profiler/ios-profiler-start.ts` to
`native-profiler/platforms/ios.ts`.

### 2. Trace-export hardening — same anti-pattern
(`utils/ios-profiler/export.ts`)
Six `xctrace export` / `xctrace version` commands were built as
`/bin/sh` strings via `execSync`, interpolating the trace-file and
output paths:
- `execSync(`xctrace export --input "${traceFile}" --output "${outPath}"
--xpath '...'`)` (×5, incl. the CPU/leaks/hangs exports and `--toc`
discovery)
- `execSync("xctrace version 2>&1 || true")`

`traceFile` is internally generated today (a timestamped path under the
debug dir, only ever passed in by `native-profiler/platforms/ios.ts`),
so this is **not currently reachable from a tool parameter** — but it is
the identical anti-pattern sitting in the same subsystem, and #1's
interpolation was likewise dormant. Converted the shared
`execSyncWithTimeout` helper to an argv-based `execFileAsyncWithTimeout`
(`execFile`, no shell) and pass every `xctrace` invocation as a discrete
argv array.

### 3. `xcodebuild` version probe — same shell-string shape
(`capture-strategy/select.ts`)
`readActiveXcodeVersion()` ran `execSync("xcodebuild -version")`. The
command is a constant with no interpolated input, so this is **not an
injection** — but it is the same `/bin/sh`-string shape this PR removes
everywhere else in the subsystem. Converted to
`execFileSync("xcodebuild", ["-version"])` so the iOS-profiler subsystem
is uniformly shell-free.

## Audit
Swept the whole tool-server for the same class (caller-supplied tool
parameter → shell-interpreted sink). **No other reachable injection
found:**
- Host commands all use argv `execFile`/`spawn` (`adb`, `xctrace`,
`emulator`, `simctl`) — serial / udid / avdName / bundleId are discrete
argv elements.
- Device-shell commands that interpolate a caller value (`open-url` URL,
`launch-app` / `restart-app` bundleId+component) are escaped through
`shellQuote()` / single-quote escaping.
- The `command -v ${dep}` PATH probes in `check-deps.ts` /
`android-binary.ts` interpolate only the closed `ToolDependency` enum
(`adb | xcrun | emulator`), never a request value.

## Buffering note (post-review)
Splitting the `simctl listapps | plutil` shell pipe into two in-process
`execFileSync` stages moved stdout buffering from the OS to Node, where
each stage inherited Node's 1 MiB default `maxBuffer` — a large
`listapps` could throw `ENOBUFS` (`NATIVE_PROFILER_APP_LIST_FAILED`)
where the pipe streamed unbounded. All three iOS app-enumeration
captures now pass the subsystem's `DEFAULT_EXEC_MAX_BUFFER` (256 MiB,
from `run-with-timeout.ts`), matching how the exporter already avoids
this class.

## Verification
- `npm run build` (tsc) ✓ · `typecheck:tests` ✓ · `prettier --check` ✓ ·
`eslint --max-warnings 0` ✓
- Regression tests assert hostile values are only ever discrete argv
elements, that no `execSync` is used in the subsystem, and that every
app-enumeration stage passes the raised `maxBuffer`. Reverting a fix
back to `execSync` (or dropping a `maxBuffer`) makes its test fail —
confirming each is a real guard.
2026-07-03 16:45:29 +02:00
Ignacy Łątka 91277a1b3b test(screenshot-diff): pin that the OCR/font pass gets the normalized images (#457)
Follow-up test hardening for the merged #442 (`fix(screenshot-diff):
rescale OCR text bounds into the normalized diff space`). Rides on a
fresh branch off main.

## Gap
`diffPngFiles` (screenshot-diff.ts) hands the OCR/font pass the
*normalized* (rescaled) images and each image's decoded->normalized
region scale, so the rescaled text bounds and the pixels they crop share
one coordinate space. #442 pinned the per-image region scales for a
single baseline-larger fixture — but that fixture left the
*current*-side assertions trivial: `normalizeToCommonSize` only ever
downscales the *larger* image and returns the smaller one untouched, so
on the untouched side decoded == normalized and the assertion holds
whether production passes the raw or the normalized value.

## Tests
- Replaces the #442 region-scale test and the initial normalized-images
test with one parametrized `it.each` over **both** scale directions
(baseline-larger and current-larger). Each direction makes the
downscaled side's `baselineImage`/`currentImage` **and**
`baselineRegionScale`/`currentRegionScale` load-bearing, so all four
wiring fields are pinned across the two cases. Verified by mutation:
reverting any one of them to the raw decoded value / identity scale
fails the matching direction (and only that direction), whereas before,
reverting `currentImage` to the decoded value left the suite green.
- Adds a both-directions `hasPixelDiff` test (no diff -> `false`, a
pixel change -> `true`), covering the one remaining load-bearing
OCR-call input that had no wiring coverage: hardcoding it (e.g. to
`false`, which silently disables text analysis for every real diff)
previously left the whole suite green.

No production code changed.
2026-07-03 16:19:33 +02:00
Ignacy Łątka 0f4d5e51cc fix(react-profiler): stop ANIMATED_PATTERN matching 'motion' inside ordinary names (#433)
## Defect

In `packages/tool-server/src/utils/react-profiler/pipeline/03-tag.ts`,
the animation-detection regex was both unanchored and case-insensitive:

```ts
const ANIMATED_PATTERN = /(Animated|Animation|Transition|Motion)/i;
```

Because of the `/i` flag, the token `Motion` matches the lowercase
substring "motion" that appears inside perfectly ordinary PascalCase
component names: `PromotionCard`, `EmotionThemeCard`, `CommotionList`,
`LocomotionView`, and so on. Those components get tagged `isAnimated =
true` in stage 3, and stage 4 (`04-rank.ts`) then unconditionally drops
every animated component from the findings (`if (comp.isAnimated)
continue;`).

The result: a genuinely slow or frequently re-rendering component such
as `PromotionCard` silently disappears from the report's Top Components
/ Suggested Improvements, even though it is exactly the kind of
component the profiler exists to surface. `ProductCard` (no "motion"
substring) is handled correctly, which is what makes the bug easy to
miss.

## Fix

Dropping only the `/i` flag removes the lowercase-embedded false
positives, but still mis-tags acronym/number-glued names such as
`SVGAnimatedPath`, `RNAnimatedView`, and `MotionlessIndicator`. So the
committed pattern anchors the token to a genuine PascalCase segment
boundary:

```ts
const ANIMATED_PATTERN = /(?<![A-Z0-9])(Animated|Animation|Transition|Motion)(?=[A-Z0-9_(.]|$)/;
```

- **Case-sensitive**, so a lowercase-embedded "motion" (`PromotionCard`,
`Emotion`, `Locomotion`) never contains the capitalized token.
- The leading `(?<![A-Z0-9])` rejects acronym/number-glued prefixes
(`SVGAnimatedPath`, `RNAnimatedView`, `CMMotionManager`,
`G2MotionSensor`) where the token is not a real PascalCase word-start.
- The trailing `(?=[A-Z0-9_(.]|$)` requires the token to end a segment —
another capitalized word, a digit/underscore, `(` or `.` (HOC/dotted
display names like `Animated(View)`, `Animated.View`), or end-of-string
— so it still matches real names while rejecting tokens that bleed into
more lowercase (`MotionlessIndicator`).

**Known limitation:** a bare `Motion` starting a PascalCase word
(`MotionSensor`, `MotionManager`) still matches — it is structurally
indistinguishable from a real animation name of the same shape
(`MotionView`, and `@legendapp/motion`'s `Motion.View`) that we intend
to tag. This over-tag is accepted collateral (it only excludes a
component from perf findings); a hardcoded device-motion denylist would
be more fragile than the rare false positive it removes. The behavior is
documented in the code comment and pinned by a test.

## Tests

`packages/tool-server/test/react-profiler-animated-pattern.test.ts`
covers:
- lowercase-embedded false positives (`PromotionCard`,
`EmotionThemeCard`, `CommotionList`, `ProductCard`) → `isAnimated =
false`, and `PromotionCard` reappears in `rank()` findings;
- real animation components (`Animated`, `AnimatedView`, `MotionView`,
`FadeTransition`, dotted/HOC forms) → `isAnimated = true`;
- acronym-prefixed and digit-suffixed device-motion names
(`CMMotionManager`, `G2MotionSensor`, …) → `isAnimated = false`;
- the accepted bare-`Motion` device-name over-tag (`MotionSensor`,
`MotionManager`, `MotionDetector`, `MotionTracker` → `isAnimated =
true`), pinned so any future change is deliberate.

The suite fails against the old `/i` regex and passes with the fix. `tsc
--build` and ESLint on the changed files are clean.
2026-07-03 16:19:31 +02:00