{"version":"2.1.269","anchor":"new-regex-for-invisiblecontrol-character-detection-in-permi","canonical_anchor":"new-regex-for-invisiblecontrol-character-detection-in-permi","heading":"New regex for invisible\/control character detection in permission-rule display","tier":"internal","area":"Permissions","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.269\/e\/new-regex-for-invisiblecontrol-character-detection-in-permi","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.269","markdown":"### New regex for invisible\/control character detection in permission-rule display\n\nNew regex detects invisible and control characters in permission-rule text for safe display\n\n**What**\n\nA new pattern matches angle brackets, control characters, and most Unicode \"format\" characters (invisible characters used for text formatting, excluding zero-width non-joiner and zero-width joiner) in permission rule strings.\n\n**Why**\n\nPermission rule text can contain invisible or control characters that would otherwise render oddly or be used to hide content; this pattern lets Claude Code detect and escape them before displaying rules.\n\n- Area: Permissions\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 0\/5"}