Claude mobile web quirk: antThinking tag content silently stripped from sent messages
Kyrannio · x · 2026-11-15
Kyrannio found an odd behavior on Claude's mobile web: typing content inside antThinking tags (with a space after the opening angle bracket) reaches Claude, but after sending, the tags and everything between them are removed from the user's message — as if treated as internal thinking tags. Reported to Anthropic.
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