AgentLens: Chrome Extension Makes Hidden Text and Prompt Injection Visible

theirwinmango · reddit · 2026-08-25

Released AgentLens, a Chrome extension designed to mitigate the risk where AI agents read invisible webpage content. It surfaces hidden text on webpages and flags content that appears to be issuing instructions to an AI, making the invisible problem of prompt injection visible. The author is seeking feedback and edge cases to test against.

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