tampermonkey

Automate browser tasks by writing Tampermonkey userscripts that interact with web pages to simulate clicks, fill forms, and extract data without manual effort. These portable scripts streamline repetitive interactions across websites.

GM_xmlhttpRequest is supported in Tampermonkey userscripts to fetch remote resources safely. You can leverage GM_* APIs like GM_setValue and GM_addElement to store data, fetch external content, and inject elements into the page.

Modify page content and inject CSS by writing Tampermonkey userscripts that alter HTML structure and adapt layouts on the fly. Scripts can execute DOM manipulation to inject styles and enhance page presentation dynamically.

Tampermonkey supports sandbox modes to isolate userscript execution and minimize security risk. Choosing the appropriate sandbox mode allows you to control execution isolation while safely interacting with page content and external resources.

Set up a simple Tampermonkey userscript by defining frontmatter metadata in SKILL.md and using YAML-based configuration. Load the script to log a message on page load or modify elements using GM_* APIs.

Userscript browser automation requires mindful sandbox execution to minimize risk. While scripts can interact with page content and external resources, execution isolation constraints mean they must be carefully configured for safe cross-site automation.