Users report Claude Opus 5.5 interrupts reverse-engineering tasks

Users report that Claude Opus 5.5 has started interrupting reverse-engineering tasks involving software and firmware, including game analyses and attempts to modify smart TVs. The complaints, which gained traction on Reddit, describe responses that begin and then stop after a safety check. Some cases involve the open-source REA (Reverse Engineer Anything) project, which connects AI agents to analysis tools.

According to Decrypt, one user tried to install an alternative interface on an LG TV running webOS with Claude Code. Opus 5.5 blocked one step, suggested switching to Opus 4.8, and the earlier model also interrupted the procedure. Anthropic says it maintains cybersecurity filters and stated when presenting Opus 5.5 that code development and debugging remain allowed, but it has not confirmed a specific change or a general ban on reverse engineering.