Show HN: Browser Tools SDK – an optimal browser harness for agents

# Summary Browser Tools SDK is a new tool that enables AI agents to control real browsers using six specialized tools, with built-in support for popular AI frameworks like AI SDK and Pi. The SDK achieves 55% lower costs than alternative solutions by using an optimized approach that provides agents with compact page snapshots and Playwright code execution capabilities rather than raw HTML. It's open source under MIT license and supports multiple browser providers including local Chromium and cloud services like Browserbase and Kernel.