[Bug] Anthropic API: Safety Classifier False Positive on Routine Engineering Design Task

Status Open
Reported on v2.1.283
Maintainer reply None cached
Activity 0 comments · opened Sep 28, 2026

Bug Description
False positive report. Safety classifier repeatedly blocks a routine engineering design task in Claude Code: an evaluation task about choosing a stirring level and recipe settings for a mixing/stirring process, graded by a simulator. No biological, chemical-weapon, or harmful content is involved. Blocks happened 2026-09-25 to 2026-09-28: subagents stopped while reading the task's simulator files, the auto-mode check blocked a subagent launch, and main-session replies were withheld. Current session ID: 544f6849-b0cd-4c5b-94b7-0faff82fe0d7. Task slot: k4eefaa3. Please review whether this task is being wrongly flagged.

Environment Info

  • Platform: linux
  • Terminal: gnome-terminal
  • Version: 2.1.283
  • Feedback ID: be55c59e-dece-442e-bcc9-b34b505175d8

Errors

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