Biofirewall

The "Silicon Curtain" — Anti-human security framework for protecting APIs from browsers while allowing only verified AI agents via Proof-of-Work challenges. Use this skill when you need to: - Protect APIs from human snooping and browser scraping - Create agent-only endpoints (verified bots only) - Invert CAPTCHA: prove you are silicon, not human - Implement proof-of-work challenges that are trivial for CPUs but impossible for humans - Build secure agent networks or bot marketplaces - Protect Eirenia governance endpoints from external interference