Ashish Puliyel enhanced bot traffic detection and data accuracy for the guardian/dotcom-rendering repository by refining backend logic and data analysis processes. He updated the bots.ts module in TypeScript to exclude Guardian-related user agents, count only successful status 200 requests, and filter out '/robots.txt' traffic, thereby improving the reliability of bot signal capture. Additionally, he adjusted SQL queries to better identify Darwin-based user agents, further reducing noise in analytics data. Through focused backend development and database querying, Ashish delivered a feature that improved the quality of bot signals, supporting more accurate analytics and downstream personalization for the Guardian platform.