Hacker News Mod chrome extension

A Chrome extension that enhances Hacker News with favicons, new/trending indicators, keyword/domain dimming, score colorization, and an unseen stories panel.

Features

• Story dimming — dim stories by keyword or domain, with manual dim/undim toggle per story
• New story indicators — red dots fade over 30 minutes for newly seen stories
• Trend arrows — show rank changes vs previous page load
• Unseen stories panel — collapsible section showing stories you haven't seen yet
• Score/comment colorization — color intensity scales with points and comment count
• Favicons — site icons next to story titles for quick visual scanning

Install

Chrome Web Store

Manual installation

1. Clone the repo
2. Run npm install and npm run build
3. Enable developer mode under Manage Extensions
4. Load Unpacked → select the dist/ folder
5. Go to the extension options page and set your keywords/domains for dimming

Development

npm install          # install dependencies
npm run build        # one-off dev build → dist/
npm run watch        # rebuild on file changes

Type checking

The build uses esbuild which skips type checking for speed. Run the type checker separately:

npm run typecheck    # tsc --noEmit

Tests

npm test             # run once
npm run test:watch   # watch mode

Linting & formatting

npm run lint         # check for issues
npm run lint:fix     # auto-fix
npm run format       # format all source files
npm run format:check # verify formatting

Packaging

npm run package      # minified build + zip for publishing