overthinkos/selkies/skills/a11y-tools
selkies/skills/a11y-tools/SKILL.md
# a11y-tools - AT-SPI2 Accessibility Introspection ## Overview Provides Python AT-SPI2 bindings for querying the accessibility tree of GTK, Qt, and Chrome applications. Enables element-based automation — find buttons, menus, and text fields by name/role instead of pixel coordinates. Used by `ov eval wl atspi tree/find/click`. ## Layer Definition ```yaml requires: - dbus rpm: packages: - python3-pyatspi - python3-gobject ``` ## Key Properties | Property | Value | |----------|-
tools
Updated May 13, 2026
$ install --global
skillsauthnpx skillsauth add overthinkos/overthink-plugins selkies/skills/a11y-toolsInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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SKILL.md
a11y-tools - AT-SPI2 Accessibility Introspection
Overview
Provides Python AT-SPI2 bindings for querying the accessibility tree of GTK, Qt, and Chrome applications. Enables element-based automation — find buttons, menus, and text fields by name/role instead of pixel coordinates.
Used by ov eval wl atspi tree/find/click.
Layer Definition
requires:
- dbus
rpm:
packages:
- python3-pyatspi
- python3-gobject
Key Properties
| Property | Value |
|----------|-------|
| Depends | dbus (AT-SPI2 requires D-Bus session bus) |
| Packages | python3-pyatspi, python3-gobject |
| Python | Uses /usr/bin/python3 (system Python 3.14, NOT pixi's Python 3.13) |
Important: System Python Required
The RPM packages install to system Python (/usr/bin/python3). Containers with pixi environments have pixi's python3 first in PATH, but pixi's python3 doesn't see system RPM packages. The ov eval wl atspi command explicitly uses /usr/bin/python3 to ensure AT-SPI2 bindings are found.
What You Can Query
- tree — Full accessibility tree (app name, window title, widget name/role/position/actions)
- find — Search by name, role, or
name:rolepattern - click — Find an element and invoke its click/press/activate action
Chrome Accessibility
Chrome needs --force-renderer-accessibility flag to expose DOM elements via AT-SPI2. The labwc/autostart in selkies-desktop includes this flag.
Included In
selkies-desktopmetalayer
Used In Images
/ov-selkies:selkies-desktop(viaselkies-desktopmetalayer)/ov-selkies:selkies-desktop-nvidia(viaselkies-desktopmetalayer)
Testing Notes
python3-pyatspiinstalls under the system/usr/lib/python3.X/ site-packages/, NOT pixi's Python 3.13 env (which dominates PATH). Declarative tests must use the absolute path/usr/bin/python3 -c "import pyatspi"; a barepython3invocation resolves to pixi's python and fails withModuleNotFoundError: No module named 'pyatspi'. See/ov-eval:evalAuthoring Gotchas #7 (no bash defaults) and #8 (system vs pixi Python).
Related Skills
/ov-eval:wl—ov eval wl atspi tree/find/clickcommands/ov-infrastructure:dbus-layer— Required dependency (D-Bus session bus)/ov-selkies:selkies-desktop— Desktop metalayer that includes this layer/ov-eval:eval— declarative testing framework/ov-image:layer— layer authoring
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