The event object boilerplate pain is so real — I've written the same API Gateway v2 mock event probably 100 times. A library that abstracts this away is genuinely useful. For anyone running Lambda-based automation workflows (which is a lot of what I build for clients), the testing gap is one of the biggest barriers to confidence in production. Do you handle step function event mocking too? That's the next level of complexity where teams really struggle with test setup.