{"name":"tengu_thinking_drop","slug":"tengu-thinking-drop","family":"flag","title":"Feature flags","noun":"feature flag","description":"New telemetry event tengu_thinking_drop logs when thinking blocks get stripped from a request","description_source":"entry","described_by":{"version":"2.1.275","anchor":"new-telemetry-event-for-dropped-thinking-blocks"},"presence":{"first_seen":null,"removed_in":null,"in_current_build":false,"newest_mined":"2.1.319","builds":0,"mined_builds":159,"first_cited":{"version":"2.1.275","released_at":"2026-09-17 20:20:31","spans":1}},"aliases":[],"entries":[{"version":"2.1.277","anchor":"tengu-thinking-drop-telemetry-gains-a-context-compacted-dime","heading":"tengu_thinking_drop telemetry gains a context_compacted dimension","line":"The tengu_thinking_drop telemetry event now also records whether context was compacted","released_at":"2026-09-18 16:22:26","reason":"found in this entry's text"},{"version":"2.1.275","anchor":"new-telemetry-event-for-dropped-thinking-blocks","heading":"New telemetry event for dropped thinking blocks","line":"New telemetry event tengu_thinking_drop logs when thinking blocks get stripped from a request","released_at":"2026-09-17 20:20:31","reason":"named in this entry, found in this entry's text"}],"entries_total":2,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"tengu_thinking_block_resumption","slug":"tengu-thinking-block-resumption","description":"Resuming an interrupted thinking block now accepts model aliases, but the feature stays off."},{"name":"tengu_thinking_display_updates","slug":"tengu-thinking-display-updates","description":"Claude Code can present thinking as connector text only, but nothing enables it here."},{"name":"tengu_thinking_toggled_hotkey","slug":"tengu-thinking-toggled-hotkey","description":"An analytics event, not a feature flag. Claude Code logs it when the thinking toggle hotkey turns extended thinking on or off, after updating `thinkingEnabled` and sending a `set_max_thinking_tokens` control request. Field: `enabled`."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-thinking-drop","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}