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Covra

Chrome Extension · Product & Founder
Graphic coming soon

Covra is a Chrome extension that generates tailored cover letters by detecting job applications across major ATS platforms like Indeed, LinkedIn, Workday, and Greenhouse. Underneath it, Covra runs on a two-layer prompt system I have been refining for over a year: hard rules plus a curated corpus of roughly 50 peer reviewed hiring and persuasion research findings, engineered to guide the model's output and designed to never fabricate or embellish a candidate's real experience. It came out of paying close attention to the sentiment around job seekers online, widespread frustration, exhaustion, and a sense that the modern hiring process asks for more than it gives back. Covra started as a small act of rebellion against that dynamic, built to hand people back their time and their voice instead of asking them to repeat the same exhausting ritual for every application. The bigger goal is broader than cover letters. The same underlying system and research base apply to any high stakes professional communication, from sales pitches to negotiations to client proposals, and cover letters were the narrow, well defined problem to prove the approach on first.

Extension (Client)

  • Chrome extension, Manifest V3, vanilla JavaScript (no framework)
  • JSZip for extracting text from .docx resumes
  • chrome.storage.local for per-tab state and settings
  • Google OAuth via chrome.identity for sign-in

Generation

  • Claude Haiku (Anthropic API), called server-side only
  • Two-layer system prompt: hard rules plus the roughly 50-study research library, injected in generate.js

Backend

  • Netlify Functions (serverless Node.js): generate, track-letter, ensure-user, portal, counter, stripe-webhook
  • Supabase (Postgres) for users, trial counters, and the public letter counter
  • Stripe for payments (live payment link and webhook)

Site

  • covra.tools on Netlify, single self-contained index.html
  • Playfair Display, DM Sans, Georgia
  • GA4 and Microsoft Clarity for analytics

Supporting

  • Namecheap for domain and email forwarding
  • Google Ads and Microsoft Ads for acquisition
  • cron-job.org for the Supabase keepalive
Visit covra.tools ↗