Starlight Page Context Action

starlight-page-context-action is a Starlight plugin that adds page action buttons to the right sidebar, above/below the table of contents.

Features

• Copy page — Copies the raw markdown content of the current page to your clipboard.
• Open in Chat — Opens the page in ChatGPT, Claude, or T3 Chat with a configurable prompt.
• Scroll to top — Smoothly scrolls back to the top of the page.
• Mobile support — Actions are also available on mobile via a compact dropdown in the mobile table of contents bar.
• Zero-config — Works out of the box with sensible defaults.
• Per-page opt-out — Disable actions on specific pages via frontmatter.

Quick Start

Install the plugin in your Starlight project:

npm

npm install starlight-page-context-action

pnpm

pnpm add starlight-page-context-action

yarn

yarn add starlight-page-context-action

Add it to your astro.config.mjs:

import starlightPageContextAction from "starlight-page-context-action";

export default defineConfig({
  integrations: [
    starlight({
      title: "My Docs",
      plugins: [starlightPageContextAction()],
    }),
  ],
});

Check the sidebar for Page Actions — you should see the “Copy page”, “Open in Chat”, and “Scroll to top” buttons on the right side of this page.

How It Works

The plugin overrides Starlight’s PageSidebar component to inject a PageContextActions component before the table of contents. It also overrides the MobileTableOfContents component to add a compact “Page Actions” dropdown alongside the mobile table of contents toggle — so actions are accessible on all screen sizes. Raw markdown files are copied to the build output so the “Copy page” button can fetch and copy the source content.