{"name":"tengu_zippy_spindle","slug":"tengu-zippy-spindle","family":"flag","title":"Feature flags","noun":"feature flag","description":"New unreleased mechanism lets a fresh prompt abort a running turn early to run sooner","description_source":"entry","described_by":{"version":"2.1.271","anchor":"rapid-followup-turn-preemption-new-gated-off-by-default"},"presence":{"first_seen":"2.1.271","removed_in":null,"in_current_build":true,"newest_mined":"2.1.322","builds":47,"mined_builds":161,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.271","anchor":"rapid-followup-turn-preemption-new-gated-off-by-default","heading":"Rapid-followup turn preemption (new, gated off by default)","line":"New unreleased mechanism lets a fresh prompt abort a running turn early to run sooner","released_at":"2026-09-14 19:45:19","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.271","anchor":"turn-preempting-rapid-follow-up-gated-behind-tengu-zippy-sp","heading":"Turn-preempting rapid follow-up, gated behind tengu_zippy_spindle","line":"A new mechanism lets a fast follow-up message immediately preempt a turn that hasn't shown output yet","released_at":"2026-09-14 19:45:19","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.271","anchor":"rapidfollowuppreempt-sdk-capability-gated-behind-tengu-zipp","heading":"rapidFollowupPreempt SDK capability, gated behind tengu_zippy_spindle (default off)","line":"New SDK capability lets a consumer ask Claude Code to auto-stop a turn when a rapid follow-up message arrives","released_at":"2026-09-14 19:45:19","reason":"gate cited by this entry, found in this entry's text"}],"entries_total":3,"docs":[],"docs_total":0,"gates":[{"version":"2.1.271","state":"unknown","account":null,"baseline":null,"code_default":false}],"related":[{"name":"tengu_zippy_gosling","slug":"tengu-zippy-gosling","description":"Default `0` (off). Idle threshold in milliseconds for an interval poller used by several background checks, including policy limits polling. When it is a positive number, no main-loop query is running, and more time than that has passed since the later of the last user interaction and the last API completion, a poll tick is postponed until the next user interaction, at most `3` ticks in a row; a non-number, zero or negative value turns the postponement off."},{"name":"tengu_zippy_harbor","slug":"tengu-zippy-harbor","description":"Six features controlled from Anthropic's servers are now checked early at startup, and five are off unless switched on remotely"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-zippy-spindle","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}