{"name":"tengu_prompt_cache_diagnostics","slug":"tengu-prompt-cache-diagnostics","family":"flag","title":"Feature flags","noun":"feature flag","description":"Cache diagnostics know when the baseline came from disk and skip misleading difference reports.","description_source":"entry","described_by":{"version":"2.1.232","anchor":"cache-break-diagnostics-note-when-the-baseline-was-loaded-fr"},"presence":{"first_seen":"2.1.138","removed_in":"2.1.246","in_current_build":false,"newest_mined":"2.1.309","builds":96,"mined_builds":150,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.246","anchor":"prompt-and-context-experiment-renamed-to-tengu-expressive-wh","heading":"Prompt and context experiment renamed to tengu_expressive_whistle , four other switches retired","line":"A prompt-and-context experiment switch was renamed and four other switches disappeared entirely.","released_at":"2026-08-25 19:17:34","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.232","anchor":"cache-break-diagnostics-note-when-the-baseline-was-loaded-fr","heading":"Cache-break diagnostics note when the baseline was loaded from disk","line":"Cache diagnostics know when the baseline came from disk and skip misleading difference reports.","released_at":"2026-08-13 21:30:53","reason":"gate cited by this entry, found in this entry's text"}],"entries_total":2,"docs":[],"docs_total":0,"gates":[{"version":"2.1.246","state":"on-in-code","account":true,"baseline":true,"code_default":null},{"version":"2.1.232","state":"on-in-practice","account":true,"baseline":true,"code_default":false}],"related":[{"name":"tengu_prompt_cache_1h_config","slug":"tengu-prompt-cache-1h-config","description":"Whether a one-hour prompt cache is allowed can now be overridden per agent and can ignore overage."},{"name":"tengu_prompt_cache_break","slug":"tengu-prompt-cache-break","description":"Cache diagnostics know when the baseline came from disk and skip misleading difference reports."},{"name":"tengu_prompt_cache_diagnosis_received","slug":"tengu-prompt-cache-diagnosis-received","description":"MCP server error lines are escaped before display, plus minor telemetry and version-string cleanups."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-prompt-cache-diagnostics","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}