{"name":"tengu_iterative_lightning","slug":"tengu-iterative-lightning","family":"flag","title":"Feature flags","noun":"feature flag","description":"When a session is resumed, Claude can now be warned about tool calls that were lost, but only when this is switched on remotely","description_source":"entry","described_by":{"version":"2.1.299","anchor":"lost-calls-note-behind-tengu-iterative-lightning"},"presence":{"first_seen":"2.1.299","removed_in":null,"in_current_build":true,"newest_mined":"2.1.308","builds":10,"mined_builds":149,"first_cited":{"version":"2.1.299","released_at":"2026-10-14 00:23:19","spans":1}},"aliases":[],"entries":[{"version":"2.1.302","anchor":"lost-calls-note-after-a-session-restart-behind-tengu-iterat","heading":"Lost tool call warning now explains that the session restarted","line":"After a restart, Claude can get an urgent reminder that the session restarted mid-turn and its tool calls may not have run, if switched on remotely","released_at":"2026-10-16 16:48:28","reason":"gate cited by this entry"},{"version":"2.1.299","anchor":"lost-calls-note-behind-tengu-iterative-lightning","heading":"Resumed sessions can warn Claude about lost tool calls","line":"When a session is resumed, Claude can now be warned about tool calls that were lost, but only when this is switched on remotely","released_at":"2026-10-14 00:23:19","reason":"gate cited by this entry"}],"entries_total":2,"docs":[],"docs_total":0,"gates":[{"version":"2.1.302","state":"off","account":false,"baseline":false,"code_default":false},{"version":"2.1.299","state":"unknown","account":null,"baseline":null,"code_default":false}],"related":[{"name":"tengu_iterative_falcon","slug":"tengu-iterative-falcon","description":"Inline shell commands in a skill's instructions can now be handed to the model to run explicitly instead of executing silently"},{"name":"tengu_iterative_haven","slug":"tengu-iterative-haven","description":"Plugin hook modules can respond to more events, while plugins people install themselves face limits where an organization manages Claude Code"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-iterative-lightning","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}