Redis runs with appendfsync everysec, so an unclean stop loses up to a second of journaled entries. Name that where the docstrings promised a crash costs nothing, and state the setting and its trade-off on the configuration page. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CL9zvnnvcp1mvA8o7impxk