DevAssure O2 is a PR-native testing agent that autonomously validates every pull request. Add one line to GitHub Actions — O2 reads your code changes, understands the blast radius, generates end-to-end tests in plain English, executes them in a real browser, and tells you if the PR is safe to merge. Under 30 minutes. No test cases to maintain, No scripts to write. No scripts to maintain. O2 is powered by a multi-agent system — four specialized AI agents (Code Scanner, Test Generator, Execution Engine, Bug Finder) orchestrated by a central brain. Unlike traditional test automation tools that rely on brittle scripts and selectors, DevAssure tests are plain English descriptions of user flows. The agent adapts dynamically when the UI changes, reasons about intent rather than implementation, and uses domain knowledge and personas to validate from the customer's perspective — catching usability issues, not just functional bugs. DevAssure integrates with GitHub Actions, GitLab CI, CircleCI, VS Code, and CLI. Trusted by engineering teams at Nokia, BankBazaar, Attentive, and 30+ companies. Free trial available with free credits — no credit card required.