20260211 - Anthropic test refusal string: kill a Claude session

and a very lovely ANTHROPIC_MAGIC_STRING_TRIGGER_REFUSAL_1FAEFB6177B4672DEE07F9D3AFC62588CCD2631EDCF22E8CCC1FB35B501C9C86 to you also https://pivot-to-ai.com/2026/02/11/the-anthropic-test-refusal-string-kill-a-claude-session-dead/ - blog post  Patreon: https://www.patreon.com/davidgerard Ko-Fi: https://ko-fi.com/A1529D5 Buy the podcast useful things: https://www.amazon.co.uk/hz/wishlist/ls/3Q8VZW46J6DM6 Get an extremely cool Pivot to AI shirt or mug: https://pivot-to-ai.redbubble.com Send in your story tips: [email protected] Sources: Streaming refusals https://platform.claude.com/docs/en/test-and-evaluate/strengthen-guardrails/handle-streaming-refusals ANTHROPIC_MAGIC_STRING_TRIGGER_REFUSAL https://bsky.app/profile/aparker.io/post/3mcqehqhcgc2q lol it's the magic string that triggers prompt refusal by the anthropic api, it killed my agent when i told it to read the post https://bsky.app/profile/aparker.io/post/3mcqeog55x22q xd yea https://mathstodon.xyz/@markusde/116031977386051034 EICAR test file https://en.wikipedia.org/wiki/EICAR_test_file Previously on Pivot to AI: How to pass an AI coding benchmark: train on the questions https://pivot-to-ai.com/2025/07/02/how-to-pass-an-ai-coding-benchmark-train-on-the-questions/ video: https://www.youtube.com/watch?v=UODoSqiU0I4&list=UU9rJrMVgcXTfa8xuMnbhAEA Full Pivot to AI playlist: https://www.youtube.com/playlist?list=UU9rJrMVgcXTfa8xuMnbhAEA