install-deps

name	install-deps
description	Install the CLI tools this plugin depends on — ImageMagick, Pillow, img2pdf, cwebp, and at least one screenshot backend (spectacle, grim+slurp, or flameshot). Idempotent setup script that detects distro and desktop session and installs only what is missing.

Install Dependencies

Use this skill the first time the user runs an annotation/screenshot/batch skill, or whenever a downstream skill reports a missing tool.

Just run the script

The plugin ships an idempotent setup script — invoke it and report the output.

bash "$CLAUDE_PLUGIN_ROOT/scripts/setup-env.sh"

It detects:

• distro from /etc/os-release (apt / dnf / pacman supported)
• desktop session (XDG_CURRENT_DESKTOP, XDG_SESSION_TYPE)

…then installs only the missing tools from this set:

• imagemagick (binary magick) — annotation, redaction, PDF fallback
• python3-pillow — Pillow-based annotator
• img2pdf — lossless image → PDF
• webp / libwebp-tools (binary cwebp) — WebP conversion
• One screenshot backend matching the session: spectacle (KDE), grim + slurp (wlroots Wayland), flameshot (everywhere else / fallback)

Behaviour rules

• Re-run anytime — it's idempotent and only installs what's missing.
• If sudo is unavailable or the distro is unsupported, the script prints what to install manually; relay that to the user.
• After running, list which screenshot backend(s) are now available so downstream skills know what to pick.