Simon Willison’s Weblog

Faster DOM Queries. Dean’s IE-specific getElementsBySelector optimisation is evil genius.

Posted 31st May 2006 at 9:53 am

Recent articles

The lethal trifecta for AI agents: private data, untrusted content, and external communication - 16th June 2025
An Introduction to Google’s Approach to AI Agent Security - 15th June 2025
Design Patterns for Securing LLM Agents against Prompt Injections - 13th June 2025

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