Building a Custom AI Code Reviewer for GitHub Enterprise with Bedrock and Go

Two weeks after deploying our custom AI code reviewer, it caught a bug that would have crashed our payment processing. A senior engineer's PR looked clean—it compiled, passed linting, followed Go idioms. But the AI spotted a subtle pattern: we'd accidentally turned a soft dependency into a hard one. If our config service blinked, our main service would die. The engineer's response? "Oh." That's…