Launch HN: Twill.ai (YC S25) – Delegate to cloud agents, get back PRs

What it does

Twill.ai says it will take your recurring engineering chores off your plate. It has been reported that the service can write code, run tests, fix failures, and open pull requests on your behalf — pinging humans only when it needs input. Pick a template, connect your tools, and Twill allegedly runs the workflows around the clock. Sounds like handing your backlog to a very obedient intern. Relief? Or a little chill down the spine?

How it works

Every task follows a fixed pipeline, the company stresses, so agents can’t skip steps — that’s the pitch for reliability. Twill lists integrations and templates for Sentry, GitHub issues, GCP Cloud Logging, AWS CloudWatch, Linear, Notion, Dependabot, CI history for flaky tests, dependency updates, docs audits and even a weekly “brutally honest” product review. It has been reported that the agent reproduces suspicious commits to cut false positives and spawns targeted fix tasks with full stack traces, so you get concrete PRs, not just a list of problems.

Why it matters

This is another shot across the bow of developer tooling: automation that doesn't just suggest code, but ships it. That promises big wins in speed and boring-work fatigue — and raises familiar questions about trust, ownership, and security. Who signs off on changes? How do you audit an agent’s decisions? The tech world has been moving from assistive tools to autonomous agents; Twill is staking a claim in that trend. Want to try it? The site is up at twill.ai — your codebase’s new night shift might already be clocking in.

Sources: twill.ai, Hacker News