star-for-claude

Star for Claude

A tiny Chrome extension that lets you star individual messages inside a Claude.ai conversation and jump back to them from a floating side panel — like a personal table of contents for your chats.

Why

Long Claude conversations are great until you need to find that one important reply from 50 messages ago. Browser search works for keywords you remember, but not for “the part where Claude actually nailed it.”

Star the messages that matter, click them in the side panel, jump back.

Features

• ⭐ Click the star next to Claude’s copy/edit buttons to star/unstar any message
• 📋 Floating “Starred” panel acts as a clickable table of contents
• ↩️ Click a star → smooth-scroll back to the original message (handles long, virtualized chats)
• 🧹 One-click “clear stars in this conversation” + nuclear “delete in every conversation” option
• 🔄 Optional sync across Chrome devices via your Google account (chrome.storage.sync)
• 🌒 Light / dark mode aware
• 🔒 No tracking, no analytics, no external servers

Install

From source (today)

1. Clone or download this repo
2. chrome://extensions → enable Developer mode (top right)
3. Load unpacked → select the star-for-claude folder
4. Open any conversation on claude.ai

Chrome Web Store

Coming soon.

Storage modes

Open the side panel’s ⚙ settings to choose:

• This device only (default) — chrome.storage.local
• Sync across devices — chrome.storage.sync (~100KB / 8KB per conversation)

Switching modes copies your stars from the current backend into the other one (non-destructive).

Privacy

Stars are stored only as: conversation ID, message index, ~120-char text snippet, role, timestamp. Nothing is sent to any external server. Full policy: PRIVACY.md.

How it works

A content script injected into https://claude.ai/*:

• Finds messages via [data-testid="user-message"] / [data-testid="assistant-message"]
• Walks up to the nearest [role="group"][aria-label="Message actions"] toolbar and appends a star button (so it inherits Claude’s hover/visibility)
• Renders a fixed-position panel in document.body
• On scroll-back: instant jump → wait for layout/virtualization → smooth-correct → highlight

If Claude.ai changes its DOM and the star stops appearing, the candidate selectors are at the top of content.js.

License

MIT

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