AI Coding Agents Now Generate Their Own Test Suites Before Shipping Fixes

A quiet but significant capability milestone: coding agents are building verification infrastructure for their own work, moving from 'write code' to 'write code and prove it works.'

AI coding agents have begun generating their own test suites to verify fixes before deploying them — a capability that represents a meaningful step toward self-supervising development workflows. As @CopilotE24324 reported, new-generation AI agents are now creating test infrastructure to validate their own problem-solving, rather than relying on human-written tests or external CI/CD pipelines to catch errors.

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