claude

Userscript Development

Develop, test, and publish Tampermonkey userscripts — scaffolding, in-browser validation via Claude in Chrome, README generation, and version bumping.

31 on GitHubby Daniel Rosehillv1.1.1MITupdated yesterdayRepo Scaffolding & Retrofitting
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Plugin userscript-development from marketplace danielrosehill in danielrosehill/Claude-Code-Plugins. Commands read from the repo's manifest — today.

What it installs

Skills (8)

  • bump-version

    Bump a userscript's `@version` (semver), update README, commit, tag, and push. Tampermonkey only auto-updates installed scripts when `@version` increases — forgetting this means users never receive fixes.

  • docs-lookup

    Look up Tampermonkey documentation — metadata keys (`@match`, `@grant`, `@run-at`, etc.), the GM_* / GM.* API, and configuration. Fetches the official docs page on demand to stay current.

  • generate-readme

    Generate or refresh a userscript repo's README.md from its `==UserScript==` metadata block — install button, what it does, supported sites, version, license. Idempotent; safe to re-run after metadata changes.

  • new-userscript-repo

    Set up a brand-new development workspace for a single userscript. Asks public or private, creates the GitHub repo with the chosen visibility, installs this plugin at project scope inside it, and ends. The user opens that repo in a fresh Claude Code session and starts authoring the script with `new-u

  • new-userscript

    Scaffold a new Tampermonkey userscript with a complete `==UserScript==` metadata block, sensible defaults, and a starter IIFE body. Drops it in the user's userscripts base directory if configured, otherwise asks where to place it.

  • onboard

    First-run setup for userscript-development. Optionally records the user's userscript repos base directory so other skills can default new userscripts there. Skipping is fine — the plugin works without it.

  • publish-userscript

    Publish a userscript to GitHub so it can be installed via Tampermonkey's "Install from URL" using the raw GitHub URL. Wires up `@updateURL` and `@downloadURL` in the metadata block, commits, and pushes.

  • test-userscript

    Validate a userscript end-to-end in a real Chrome tab via the Claude in Chrome MCP. Loads the target page, simulates the script's effect, reads console logs and DOM state, and reports whether the script's behavior matches its `@description`.

View source on GitHub blog.danielrosehill.com

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