Remove agents, add gnome sdk docs skill

Author: ranfdev

.agents/skills/gnome-sdk-docs/SKILL.md

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+---
+name: gnome-sdk-docs
+description: "Browse GNOME SDK documentation including GObject Introspection (.gir) files, D-Bus interfaces or icons that can be useful for GNOME apps development."
+---
+
+# Browsing GNOME SDK Documentation
+
+This skill provides access to various GNOME SDK resources for development purposes.
+
+## GObject Introspection Files
+
+GObject Introspection (`.gir`) files are XML files describing the API of GNOME libraries. They are located at `/usr/share/gir-1.0/`.
+
+The libraries used by this project and their corresponding files:
+
+- `/usr/share/gir-1.0/Gtk-4.0.gir`
+- `/usr/share/gir-1.0/Adw-1.gir`
+- `/usr/share/gir-1.0/Gio-2.0.gir`
+- `/usr/share/gir-1.0/GLib-2.0.gir`
+- `/usr/share/gir-1.0/GObject-2.0.gir`
+- `/usr/share/gir-1.0/Soup-3.0.gir`
+
+These files are large XML documents. Use Grep to search for specific class names, method names, property names, or signal names rather than reading entire files. For example:
+
+- To find a class: `Grep` for `<class name="Button"` in the relevant `.gir` file.
+- To find a method: `Grep` for `<method name="set_label"`.
+- To find properties of a class: `Grep` for `<property name=` near the class definition.
+- To find signals: `Grep` for `<glib:signal name=`.
+
+## D-Bus Interfaces
+
+D-Bus interface definitions are XML files describing D-Bus services and their methods, signals, and properties. They are located at `/usr/share/dbus-1/interfaces/`.
+
+Use Grep to search for specific interface names, method names, or signal names. For example:
+
+- To find an interface: `Grep` for `<interface name="org.freedesktop.portal.Notification"` in the relevant interface file.
+
+## Icons
+
+GNOME icons are stored in `/usr/share/icons/`. This directory contains icon themes like Adwaita, with icons in various sizes and formats.
+
+Use file listing tools to browse available icons by theme and size. For example:
+
+- List themes: `ls /usr/share/icons/`
+- List icons in a theme: `ls /usr/share/icons/Adwaita/`
+
+Remember to use symbolic-icons for UI elements, unless showing the icon of a specific app