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yc-jobs-scraper

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Scrape daily job listings from YCombinator's Workatastartup platform without duplicates. Use this skill when asked to scrape YC jobs, update the YC companies list, or retrieve the latest startup jobs. It handles authentication, extracts company slugs via Inertia.js JSON payloads, falls back to public YC job pages when necessary, and maintains a local SQLite database to track historical jobs and prevent duplicates.

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How to use this skill

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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/Varnan-Tech/opendirectory/blob/HEAD/skills/yc-intent-radar-skill/yc-jobs-scraper/SKILL.md

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Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

YC Jobs Scraper

This skill provides a robust architecture for scraping jobs from YCombinator and workatastartup.com. It is designed to run automatically, bypass login bottlenecks, and maintain state to never scrape duplicate jobs.

Architecture

The scraper uses a hybrid approach to maximize reliability and minimize bot detection:

  1. Authentication: scripts/auth.js uses Playwright to let a human log in once and saves the session to scripts/state.json.
  2. Database: scripts/db.js uses better-sqlite3 to manage scripts/jobs.db. It tracks every company_slug and job_id ever seen.
  3. Primary Extraction: scripts/scraper.js loads state.json, visits YC query URLs, and extracts company slugs from the hidden Inertia.js data-page JSON payload.
  4. Job Extraction (JSON): It then visits the authenticated company pages (/companies/[slug]) to extract jobs from the backend JSON payload to ensure we get the real job_id for accurate deduplication.
  5. Job Extraction (Fallback): If the JSON extraction fails, it falls back to parsing public HTML job cards from ycombinator.com/companies/[slug]/jobs.

Workflows

1. First-Time Setup

If this is the first time running the scraper in an environment, or if node_modules is missing:

cd @path/scripts
npm install
npx playwright install

2. Authentication (Manual Step)

If scripts/state.json is missing or expired, the scraper will fail. You must instruct the human user to run the authentication script manually:

cd @path/scripts
node auth.js

Tell the user a browser will open, and they must log in. Playwright will automatically save the cookies/tokens to state.json.

3. Running the Daily Scraper

To scrape for new companies and jobs:

cd @path/scripts
node scraper.js

This script will output exactly how many new companies and new jobs were found. Because of jobs.db, running it multiple times consecutively will result in 0 new jobs found.

4. Querying the Database

If you need to analyze the scraped data or view the companies/jobs, you can query scripts/jobs.db directly using better-sqlite3.

Example: Count Companies

cd @path/scripts
node -e "const db = require('better-sqlite3')('jobs.db'); console.log('Companies:', db.prepare('SELECT COUNT(*) as count FROM companies').get().count);"

Example: View Recent Jobs

cd @path/scripts
node -e "const db = require('better-sqlite3')('jobs.db'); const jobs = db.prepare('SELECT title, company_slug, location FROM jobs ORDER BY created_at DESC LIMIT 5').all(); console.table(jobs);"