{"version":"2.1.277","anchor":"new-tool-names-added-to-a-shared-exclusionclassification-se","canonical_anchor":"permission-rules-naming-a-removed-tool-are-now-flagged-and-s","heading":"Saved permission rules for removed tools are now flagged, not treated as typos","tier":"notice","area":"Tool Results","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.277\/e\/new-tool-names-added-to-a-shared-exclusionclassification-se","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.277","markdown":"### Saved permission rules for removed tools are now flagged, not treated as typos\n\nPermission rules naming a tool Claude Code no longer has are now recognized and skipped, thanks to an expanded internal removed-tools list\n\n**What**\n\nClaude Code keeps an internal list of tool names it checks saved permission (allow\/deny) rules against. That list now includes five more retired tool names: `TaskOutput`, `AgentOutputTool`, `BashOutputTool`, `AgentOutput`, and `BashOutput`.\n\nWhen a saved permission rule references a tool name that's in this list, Claude Code now recognizes it as a rule for a removed tool, logs a warning, and skips it. Previously such a rule would fall through to the generic \"matches no known tool\" check, which is meant to catch typos.\n\n**Why**\n\nThis avoids confusing users with typo-style warnings when their saved permission rules simply reference tools that have since been renamed or removed, and makes the underlying detection more accurate by keeping the removed-tools list up to date.\n\n- Area: Tool Results\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 1\/5"}