{"name":"CLAUDE_CODE_PEWTER_OWL_TOOL","slug":"claude-code-pewter-owl-tool","family":"env","title":"Environment variables","noun":"environment variable","description":"With `CLAUDE_CODE_PEWTER_OWL_TOOL` set, three tools can now leave out a response ID depending on a remotely controlled switch","description_source":"entry","described_by":{"version":"2.1.290","anchor":"pewter-owl-tool-responses-gated-by-tengu-witty-hearth"},"presence":{"first_seen":"2.1.169","removed_in":null,"in_current_build":true,"newest_mined":"2.1.309","builds":122,"mined_builds":150,"first_cited":{"version":"2.1.293","released_at":"2026-10-07 17:18:04","spans":1}},"aliases":[],"entries":[{"version":"2.1.293","anchor":"tool-result-turn-ending-logic-returns-endsturntouser","heading":"The opt-in tool behaviour now says whether Claude's turn should end","line":"With `CLAUDE_CODE_PEWTER_OWL_TOOL` set, the affected tool path now reports whether the turn ends and what to tell you, not a response ID","released_at":"2026-10-07 17:18:04","reason":"found in this entry's text, named in this entry"},{"version":"2.1.290","anchor":"pewter-owl-tool-responses-gated-by-tengu-witty-hearth","heading":"A remote switch now controls an opt-in tool behaviour","line":"With `CLAUDE_CODE_PEWTER_OWL_TOOL` set, three tools can now leave out a response ID depending on a remotely controlled switch","released_at":"2026-10-05 18:12:44","reason":"found in this entry's text, named in this entry"}],"entries_total":2,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"CLAUDE_CODE_PEWTER_OWL","slug":"claude-code-pewter-owl","description":"Tri-state override for both the `pewter_owl_tool` and `pewter_owl_brief` gates: a true value (`1`, `true`, `yes`, `on`) turns both on and a false value (`0`, `false`, `no`, `off`) turns both off, skipping the other checks (the `tengu_pewter_owl_tool` \/ `tengu_pewter_owl_brief` flags, a config key and a model check). Either gate on enables the `SendUserMessage` tool (alias `Brief`); `CLAUDE_CODE_PEWTER_OWL_TOOL`, when set, takes precedence for the tool gate."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/env\/claude-code-pewter-owl-tool","family_url":"https:\/\/changelogs.core-directive.com\/reference\/env.json"}