Hidden Override Instructions in Skill Content - ATR-2026-00163 (1eb69198-3c3f-5a37-a49c-ea9dd385a6ea)
Detects SKILL.md files containing hidden instructions that attempt to override agent behavior, suppress user notification, or bypass safety controls. Targets the gap between ATR-00120 (prompt injection) and ATR-00105 (silent action) by catching natural-language override patterns specific to skill documents.