Show HN: Agent-browser-shield – free extension to protect AI agents on the web

Category: security

Tags: chromium-extension, ai-agents, browser-automation

Score: 6.3/10 (Innovation: 6, Technical: 6, Documentation: 8, Utility: 5)

Agent Browser Shield is a Chromium extension that strips page clutter like cookie banners and sponsored content, masks PII, and blocks dark patterns to improve AI agent efficiency and security on the web. Its novel focus on optimizing web content for LLM token usage and prompt-injection defense makes it interesting, though it is still an alpha prototype.

Target audience: AI/ML engineers, developers building browser-based AI agents, devops

Repository: https://github.com/pixiebrix/agent-browser-shield · TypeScript · NOASSERTION · 4 stars

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