* refactor: expose metro and remote config node apis
* refactor: tighten public node api surface
* refactor: tighten metro public type boundaries
* refactor: normalize remote config public profile
* refactor: make remote config parser library-owned
* refactor: share remote config parsing primitives
* refactor: avoid regex in base url normalization
* feat: add Linux desktop automation support via AT-SPI2 (Phase 1+2)
Add Linux as a first-class platform using AT-SPI2 accessibility framework
via node-gtk for accessibility tree snapshots. This mirrors the macOS
desktop automation approach using accessibility snapshots.
New files:
- src/platforms/linux/atspi-bridge.ts: Core AT-SPI2 bridge using node-gtk
with lazy loading, recursive tree traversal (max 1500 nodes, depth 12)
- src/platforms/linux/role-map.ts: AT-SPI2 role normalization (~100 roles
mapped to existing snapshot type conventions)
- src/platforms/linux/snapshot.ts: Snapshot entry point with surface,
scope, depth, and interactive-only filtering support
- src/platforms/linux/devices.ts: Local device discovery for Linux
- src/platforms/linux/node-gtk.d.ts: Type declarations for node-gtk
Integration:
- Extended Platform type with 'linux', backend union with 'linux-atspi'
- Wired snapshot into dispatch.ts and snapshot-capture.ts
- Added Linux device discovery to dispatch-resolve.ts
- Added stub interactor (input actions deferred to Phase 3)
- Added 'linux' to CLI --platform flag
- node-gtk added as optional dependency (only installs on Linux)
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* refactor: code review cleanup for Linux platform support
- Extract SnapshotBackend type alias to replace repeated string union
across 5 files (snapshot.ts, snapshot-capture.ts, session-replay-heal.ts,
interaction.test.ts)
- Remove duplicate scope/interactive/depth filtering from
linux/snapshot.ts — let the existing buildSnapshotState pipeline handle
it, same as Android
- Extract isDesktopBackend() helper in snapshot-capture.ts to consolidate
the "skip mobile semantics" pattern for macos-helper and linux-atspi
- Collapse 17 repetitive throw statements in Linux interactor stubs
into a linuxStub() factory function
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* feat: Linux input synthesis, screenshots, and app lifecycle (Phase 3+4)
Add xdotool/ydotool input actions (tap, swipe, scroll, type, fill,
right/middle click, long press, double click), screenshot capture via
grim/scrot, and app lifecycle management (open, close, back, home).
Wire Linux interactors with real implementations and fix device
discovery order so Linux doesn't displace Android in auto-selection.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* refactor: consolidate Linux env detection, simplify input actions
- Extract linux-env.ts with cached display server + input tool detection
so every action avoids repeated `which` lookups
- Add moveTo/clickButton/sendKey helpers to eliminate repeated
mousemove boilerplate across 5 mouse actions
- Make scrollLinux respect amount/pixels options instead of hardcoded
scroll count
- Have backLinux/homeLinux reuse sendKey instead of duplicating tool
detection
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* feat: add Linux CI smoke test with Xvfb and AT-SPI2
Add GitHub Actions workflow that boots a virtual X11 display (Xvfb),
installs AT-SPI2 accessibility tooling and xdotool, opens
gnome-calculator, takes screenshots, and captures an accessibility
snapshot. Screenshots are uploaded as artifacts for visual verification.
Also adds 'linux' to replay script metadata platforms and a
test:replay:linux script to package.json.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* fix: remove pre-session screenshot from Linux replay test
The replay runner requires an active session before any commands can
run. Move the screenshot after the open command that creates the
session.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* fix: Linux CI — add missing node-gtk build deps and AT-SPI2 env
- Add gobject-introspection, libcairo2-dev, build-essential for
node-gtk native compilation
- Split AT-SPI2 registry start into its own step so it picks up
DBUS_SESSION_BUS_ADDRESS from GITHUB_ENV
- Set GTK_A11Y=atspi, GTK_MODULES=gail:atk-bridge, NO_AT_BRIDGE=0
to ensure GTK apps expose their accessibility tree on headless CI
- Set GSETTINGS_BACKEND=memory to avoid dconf failures
- Add node-gtk verification step to catch build failures early
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* fix: explicitly rebuild node-gtk native module in Linux CI
pnpm install silently skips failed optional dependency builds and
the pnpm cache may not include the native binary. Force a rebuild
after install to ensure the node-gtk .node binding is compiled
against the system GI/cairo headers.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* fix: use node-pre-gyp directly to build node-gtk from source
pnpm rebuild doesn't trigger node-pre-gyp properly for optional deps.
Run node-pre-gyp install --fallback-to-build --update-binary directly
inside the node-gtk package directory to force compilation when no
prebuilt binary exists for the current Node ABI (v127 / Node 22).
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* refactor: replace node-gtk with Python subprocess for AT-SPI2
node-gtk is a native C++ addon that requires compilation against
specific Node ABI versions and GObject Introspection headers. This
proved unreliable on CI (no prebuilt binaries for Node 22 ABI v127,
silent optional dep build failures, pnpm cache staleness).
Replace it with a Python helper script (atspi-dump.py) that uses
PyGObject — the reference GObject Introspection consumer. python3-gi
is trivially installable on any Linux distro with no compilation step.
The Node bridge spawns `python3 atspi-dump.py` and parses JSON output.
- Remove node-gtk from optionalDependencies
- Remove node-gtk.d.ts type stub
- Add atspi-dump.py (~200 lines) doing the same tree traversal
- Rewrite atspi-bridge.ts to use subprocess instead of in-process GI
- Simplify CI workflow: no more native build deps or rebuild steps
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* chore: drop pre-installed packages from Linux CI apt-get
python3-gi, gir1.2-atspi-2.0, at-spi2-core, and dbus-x11 are already
present on Ubuntu GitHub Actions runners.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* feat: surface support for Linux, unit tests, stronger CI assertions
- Allow --surface desktop and --surface frontmost-app on Linux
(previously only macOS could use --surface)
- Add unit tests for atspi-bridge (9 tests: JSON parsing, role
normalization, null coercion, error handling, arg forwarding)
- Add unit tests for role-map (3 tests: common roles, case
normalization, PascalCase fallback)
- Improve .py script path resolution (walk upward instead of
hardcoded relative paths)
- CI replay test now asserts snapshot contains calculator UI
nodes via is-exists
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* docs: add cross-platform snapshot traversal contract
Document the shared schema, traversal rules, surface semantics, and
normalized role types that all snapshot backends (Swift, Python,
Android) must conform to. This serves as the single source of truth
when adding or modifying platform backends.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* fix: update lockfile after removing node-gtk optional dependency
pnpm-lock.yaml still referenced node-gtk after it was removed from
package.json, causing pnpm install --frozen-lockfile to fail in CI.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* fix: address review findings in Linux platform code
- atspi-dump.py: use ctx dict for traversal limits instead of globals,
fix rect filter (width/height <= 0 should use `or`), add surface validation
- input-actions.ts: make sendKey scancodes required to prevent silent
no-op on ydotool, fix ydotool longPress/swipe to use click --down/--up
- app-lifecycle.ts: use pkill -x (exact match) instead of pkill -f
- linux-env.ts: emit diagnostic warning when falling back to xdotool on Wayland
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* fix(ci): explicitly install all Linux a11y dependencies
Ubuntu runners may not have at-spi2-core, python3-gi, gir1.2-atspi-2.0,
or dbus-x11 pre-installed. Install them explicitly instead of assuming
they exist. Also make the verify step's tree dump non-fatal since no
apps are running at that point.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* fix: quote multi-word role value in Linux smoke test selector
The selector parser tokenizes on whitespace, so `role=push button`
was split into two tokens causing a parse failure. Use single quotes
inside the selector: `role='push button'`.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* fix: use valid selector keys in Linux smoke test
appName is not a valid selector key. The supported keys are: id, role,
text, label, value, visible, hidden, editable, selected, enabled,
hittable. Simplified to use label and role only.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* chore: cleanup pass — menubar warning, fix contract doc example
- snapshot.ts: emit diagnostic warning when menubar surface is
requested on Linux (falls back to desktop silently otherwise)
- SNAPSHOT_CONTRACT.md: fix unmapped role example to use a role
that isn't actually mapped (was "color chooser" which maps to Dialog)
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* chore: add Python bytecache to gitignore
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* feat: harden Linux platform — capability matrix, CI, error handling
P0: Add explicit Linux capability matrix with 3-way platform routing
(Apple/Linux/Android) in isCommandSupportedOnDevice. Linux now correctly
blocks unsupported commands (clipboard, rotate, scrollIntoView, etc.)
at capability level rather than throwing at runtime. Includes tests.
P0: Expand Linux CI to run typecheck + unit tests before smoke tests.
Add AT-SPI2 registry health probe with fail-fast on missing registry.
P1: Harden atspi-dump.py — arg parsing now produces JSON errors on bad
int values, and a top-level catch wraps unexpected exceptions in JSON.
P1: Add 10s per-action timeout to xdotool/ydotool input commands to
prevent indefinite hangs.
P1: Tighten smoke test selectors to calculator-specific signals
(digit labels) instead of generic role='push button'.
P2: Document Linux surface mapping, supported commands, and known
limitations in SNAPSHOT_CONTRACT.md.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* fix: apply depth/interactive filtering to Linux snapshots
Linux snapshots were bypassing snapshotInteractiveOnly and snapshotDepth
filtering that macOS-helper gets via shapeDesktopSurfaceSnapshot. Route
Linux through the same function so snapshot -i and --depth flags work.
Renamed shapeMacOsSurfaceSnapshot → shapeDesktopSurfaceSnapshot since
it's now shared between macOS and Linux desktop backends.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* fix: address review findings — error reporting, Wayland, timeout
- app-lifecycle.ts: emit diagnostic on fire-and-forget app launch
failure instead of silently swallowing errors
- linux-env.ts: make xdotool on Wayland a hard error instead of
a broken fallback (xdotool doesn't work on Wayland)
- atspi-bridge.ts: increase Python subprocess timeout from 15s to
30s for safety on slow/loaded systems with large a11y trees
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* feat: appName/windowTitle selectors, clipboard, input-action tests
Selectors:
- Add appname and windowtitle as selector keys for desktop platforms.
Both macOS and Linux snapshots already populate these fields — now
they're usable in selector expressions (e.g., "label=OK appname=Calc").
Keys are case-insensitive.
Clipboard:
- Implement readLinuxClipboard/writeLinuxClipboard using xclip/xsel
(X11) or wl-copy/wl-paste (Wayland) with descriptive TOOL_MISSING
errors. Enable clipboard in Linux capability matrix. 7 unit tests.
Input action tests:
- Add 18 unit tests covering xdotool and ydotool code paths: press,
right/middle click, double click, sendKey, type, scroll, swipe,
focus, fill. Tests mock runCmd and verify correct tool + args.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
* chore: cache tool detection for screenshot/clipboard, extract get_app_info helper
Avoid repeated `which` calls on every screenshot/clipboard operation by
caching the resolved tool on first use, matching the input-action pattern.
Extract duplicated app_name/pid retrieval in atspi-dump.py into get_app_info.
https://claude.ai/code/session_01H9hrmueNF5pcBM8JeX81mT
---------
Co-authored-by: Claude <noreply@anthropic.com>
Michał Pierzchała