Use when asked to author a new OpenCode custom tool, especially when the request starts as a plain-English tool idea and needs to become a valid .opencode/tools/*.ts file.
Directly compress and improve markdown instruction files while preserving their intent and behavior. Use this skill whenever the user asks to optimize, tighten, simplify, compress, clarify, clean up, or rewrite instructions/prompts/system prompts/agent docs/skill docs in markdown, especially when they want the file edited in place rather than advice. Also use it for slash-command style instruction files with frontmatter, placeholders like $ARGUMENTS, or operational workflows that need to become shorter and more reliable.
Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, testing web apps, or automating any browser task. Triggers include requests to "open a website", "fill out a form", "click a button", "take a screenshot", "scrape data from a page", "test this web app", "login to a site", "automate browser actions", or any task requiring programmatic web interaction.