Comet sidekick

Comet sidekick is a browser extension that helps track user's study focus strength and helps them stay on track when they stray off-topic.

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About the Project

Inspiration

Late-night study sessions always end the same way: 15 tabs open, Amazon “just checking a price,” Reddit “quick break,” and my notes scattered across three apps. I saw Comet—Perplexity’s agentic AI browser—and thought: “What if the browser itself could be my study buddy?” A voice-activated, gamified co-pilot that watches my tabs, nudges me back to focus, auto-curates notes, and rewards streaks with AI-generated memes. That’s Comet Study Buddy Sidekick.

What it does

  • Real-time Tab Health Score (0–100) based on open tabs.
  • Voice nudges when distractions (YouTube, Amazon, etc.) drag the score below 60 → offers a 2-minute Khan Academy break on your declared topic.
  • One-click “Save Note” → copies page title + your note to clipboard (ready for GitHub wiki).
  • Streak tracking → every focused hour earns a badge; every 3-day streak triggers a custom AI meme via Comet’s image generation.
  • Persistent UI (badge + button) on every page, no manual reload.

How we built it

  1. Started with a bookmarklet (vanilla JS) → injected UI, mocked tab data.
  2. Hit walls: bookmarklets are page-scoped, can’t read other tabs, vanish on navigation.
  3. Pivoted to a Chrome extension (Manifest V3) → chrome.tabs.query for real tab detection, localStorage for persistence.
  4. Integrated Comet’s agentic AI via voice/sidebar prompts:
    • TAB HEALTH → JSON of open tabs + distraction flags.
    • AUTO-WIKI → extract quotes & append to GitHub notes.md.
    • MEME REWARD → generate cat-in-glasses meme with topic pun.
  5. Demo flow: Loom video showing Amazon tab → score drop → voice nudge → Khan break → note save → 3-day streak meme.

Tech stack:

  • Extension: manifest.json, background.js (tab query), content.js (UI + logic).
  • Comet AI: voice mode (Shift+Alt+V) + agentic prompts.
  • Storage: localStorage for topic/streak; GitHub repo for wiki.

Challenges we ran into

Challenge Solution
Bookmarklet couldn’t access other tabs Switched to Chrome extension with chrome.tabs API
UI vanished on page navigation Content script runs on <all_urls>
Comet’s CSP blocked JS injection on some sites Used extension (bypasses page CSP)
No direct GitHub write API in browser Clipboard fallback + manual paste (demo shows flow)
Voice prompt timing Manual trigger in Loom; noted as “future automation”

Accomplishments that we're proud of

  • First working tab-health monitor inside Comet using real chrome.tabs data.
  • Seamless voice + visual feedback—badge updates live, nudge speaks.
  • Gamification that actually works: 3-day streak → AI meme = instant dopamine.
  • Zero-backend MVP—everything runs in-browser + Comet AI.

What we learned

  • Agentic AI shines in workflows, not just chat—Comet can act on tabs, generate images, and chain prompts.
  • Browser extensions > bookmarklets for persistence and permissions.
  • Prompt engineering is 80 % of the magic—a well-crafted TAB HEALTH prompt turns Comet into a tab auditor.
  • Students need frictionless tools—one-click note export beats manual copy-paste.

What's next for Comet Sidekick

  1. Auto-push to GitHub via Comet’s future file-write actions.
  2. Voice-only mode—“Start 25-min Pomodoro on Quantum Physics” → timer + focus lock.
  3. Shared study rooms—sync streaks with friends via Comet’s multi-user tabs.
  4. AI-generated study guides from saved notes → “Summarize my week on ML into a 1-page PDF”.
  5. Mobile Comet app—Sidekick badge on iOS/Android.

Sidekick is more than a hack—it’s the study buddy I wish I had in college.
Built solo, powered by Comet, ready to help every student turn chaos into focus. 🚀

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