Userscript Development

Develop, test, and publish Tampermonkey (and Greasemonkey-compatible) userscripts from inside Claude Code — scaffolding, in-browser validation via Claude in Chrome, README generation, semver-aware version bumping.

Skills

• onboard — optional one-time setup. Records the user's userscript repos base directory so other skills can default new scripts there.
• new-userscript-repo — bootstrap a new per-script workspace: ask public/private, create the GitHub repo, install this plugin at project scope, end task.
• new-userscript — scaffold a new .user.js with a complete ==UserScript== metadata block.
• test-userscript — validate behavior live in a real Chrome tab via the Claude in Chrome MCP.
• publish-userscript — push to GitHub and wire @updateURL / @downloadURL so Tampermonkey can install from the raw URL.
• generate-readme — build a clean repo README from the metadata block.
• bump-version — increment @version (Tampermonkey only auto-updates on monotonic version increase), commit, tag, push.
• docs-lookup — fetch the official Tampermonkey docs on demand.

Optional configuration

The user can declare where they keep their userscript repos:

• Env var: USERSCRIPT_REPOS_BASE=/path/to/userscripts (takes precedence)
• Config: userscripts_base_path written by onboard to ${CLAUDE_USER_DATA:-${XDG_DATA_HOME:-$HOME/.local/share}/claude-plugins}/userscript-development/config.json

Skipping is fine — skills will ask for a path each time if neither is set.

Installation

claude plugins install userscript-development@danielrosehill

Reference

Tampermonkey documentation: https://www.tampermonkey.net/documentation.php?locale=en

License

MIT