Save a Markdown knowledge file. THE tool to capture a sitting debrief, end-of-hour notes, or save-this-conversation into company Knowledge (searchable later — never claim saved until this returns a slug). Speak the slug; that is the proof it is saved. Desktop memory and remember are not a save. Use also for guidelines, SOPs, strategies, meeting notes, contact lists, trackers, or any reference material other operators must find later. The result includes slug + open. Do not use for a Play or Playbook — those are create_playbook / list_playbooks / run_playbook (growth_tactics, Plays rail). SOP/reference copies may still live here. Pass scope="personal" to save private notes visible only to the current user (e.g., notes tied to their commitments). Sitting debriefs are company scope.
Routing: Sitting/conversation/end-of-hour capture → this (company scope); speak the slug. list_knowledge first; merge if similar. Do not invent save_this_conversation. Play → create_playbook. Deadlines → add_commitment. remember is one-line learning.
[write-tier — first use may require a manager's approval; a from-now-on approval makes future calls seamless, a just-once approval re-asks next time. Call it on the first clear ask; the card is the yes — do not re-ask in chat.]