Yeah, the letter-by-letter and dynamic tools that construct longer URLs tricks are both important to know about. I wrote about the latter of those here: https:/

Yeah, the letter-by-letter and dynamic tools that construct longer URLs tricks are both important to know about. I wrote about the latter of those here: https://simonwillison.net/2026/Jul/15/claude-web-fetch-exfiltration/ https://simonwillison.net/2026/Jul/15/claude-web-fetch-exfil...