html-throwaway-editor
HTML Throwaway Editor
When describing what you want to do is harder than just doing it, build a one-off editor. Not a product. Not a reusable tool. A single HTML file purpose-built for this one piece of data, with an export button at the end that turns the result back into something pasteable.
Pre-flight — run BEFORE writing the artifact
This skill produces an interactive artifact. Invoke the html-skills-listen skill from this plugin first (Skill tool: html-skills:html-skills-listen). It sets up a per-session local receiver and arms a Monitor so user submissions arrive as session notifications instead of as copy-paste round-trips. It's idempotent — invoke every time you fire this skill.
Capture the URL it returns. If it returned one, inject it as window.__CLAUDE_SUBMIT_URL__ in the HTML you're about to write. If it reported web/sandbox mode (no URL returned), generate the HTML without __CLAUDE_SUBMIT_URL__ set — submitToClaude will fall back to clipboard mode automatically.
Skipping this step costs the user a copy-paste round-trip on every submit. Invoking the skill is cheap and idempotent.