{"name":"tengu_sepia_moth","slug":"tengu-sepia-moth","family":"flag","title":"Feature flags","noun":"feature flag","description":"A precompute-compaction toggle is gated off by default and has no effect even if saved.","description_source":"entry","described_by":{"version":"2.1.260","anchor":"precompute-compaction-setting-still-gated-off-by-default"},"presence":{"first_seen":"2.1.138","removed_in":null,"in_current_build":true,"newest_mined":"2.1.309","builds":150,"mined_builds":150,"first_cited":{"version":"2.1.260","released_at":"2026-09-03 22:32:02","spans":2}},"aliases":[],"entries":[{"version":"2.1.300","anchor":"precompute-compaction-gate-split-into-helper-new-woolly-for","heading":"Early compaction check reorganized, with a second server switch added","line":"The check for preparing compaction ahead of time was reorganized, and a separate server-controlled switch was added beside it","released_at":"2026-10-14 14:27:26","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.288","anchor":"precomputed-compaction-reuse-now-checks-coverage-and-fit","heading":"Stricter checks before reusing a summary prepared in advance for compaction","line":"Claude Code now checks that a summary prepared in advance still covers the conversation and would fit before using it to compact","released_at":"2026-10-02 18:30:40","reason":"gate cited by this entry"},{"version":"2.1.288","anchor":"settings-toggles-still-dark-precompute-compaction-and-messa","heading":"Two settings remain hidden unless switched on remotely","line":"The \"Precompute compaction\" and \"Show message timestamps\" settings still only appear when a server-side switch allows them","released_at":"2026-10-02 18:30:40","reason":"gate cited by this entry"},{"version":"2.1.285","anchor":"background-shell-commands-get-a-stop-deadline","heading":"Background shell commands are now stopped after a time limit, 30 minutes by default","line":"A shell command Claude runs in the background is now stopped when its timeout runs out: 30 minutes by default, up to 2 hours","released_at":"2026-09-29 17:32:09","reason":"gate cited by this entry"},{"version":"2.1.285","anchor":"precomputecompactionenabled-setting-stays-behind-tengu-sepia","heading":"Precomputed compaction setting still hidden unless switched on remotely","line":"The `precomputeCompactionEnabled` option still only appears in settings when a server-side switch is on, which falls back to off","released_at":"2026-09-29 17:32:09","reason":"gate cited by this entry"},{"version":"2.1.265","anchor":"precomputed-conversation-compaction-rehydration-gated-off","heading":"Precomputed conversation-compaction rehydration, gated off","line":"Claude Code can reuse a precomputed conversation summary instead of compacting fresh, gated off","released_at":"2026-09-08 19:05:16","reason":"gate cited by this entry"},{"version":"2.1.260","anchor":"precompute-compaction-setting-still-gated-off-by-default","heading":"Precompute-compaction setting still gated off by default","line":"A precompute-compaction toggle is gated off by default and has no effect even if saved.","released_at":"2026-09-03 22:32:02","reason":"found in this entry's text, named in this entry, gate cited by this entry"},{"version":"2.1.179","anchor":"precompute-compaction-setting-gradual-rollout","heading":"Precompute Compaction Setting [Gradual Rollout]","line":null,"released_at":"2026-06-16 17:51:27","reason":"gate cited by this entry, found in this entry's text"}],"entries_total":8,"docs":[],"docs_total":0,"gates":[{"version":"2.1.300","state":"off","account":false,"baseline":false,"code_default":false},{"version":"2.1.288","state":"off","account":false,"baseline":false,"code_default":false},{"version":"2.1.285","state":"off","account":false,"baseline":false,"code_default":false},{"version":"2.1.265","state":"unknown","account":null,"baseline":false,"code_default":false},{"version":"2.1.260","state":"off","account":false,"baseline":false,"code_default":false},{"version":"2.1.179","state":"off","account":false,"baseline":false,"code_default":false}],"related":[{"name":"tengu_sepia_cormorant","slug":"tengu-sepia-cormorant","description":"Default `null`. A list of model name substrings: when the session's current model contains one (case-insensitive) and `tengu_umber_petrel` is also on, auto memory defaults to off for that model and its status reads `unavailable for current model` with the toggle disabled. `CLAUDE_CODE_DISABLE_AUTO_MEMORY` set to a false value still forces auto memory on; a non-array or empty value has no effect."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-sepia-moth","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}