Show HN: Sentinel – LLM browser automation using 10x fewer tokens

Category: devtools

Tags: browser-automation, llm-agent, playwright

Score: 7.3/10 (Innovation: 7, Technical: 7, Documentation: 8, Utility: 7)

Sentinel is an AI-powered browser automation framework that uses natural language instructions instead of CSS/XPath selectors. It's interesting because it dramatically reduces LLM token usage by filtering the accessibility tree to relevant elements, claims 10x cost savings over alternatives, and offers advanced features like declarative form filling, network interception, and self-healing locators.

Target audience: backend devs, devops, data engineers

Repository: https://www.isoldex.ai/ · TypeScript · MIT

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