/vouch-remember

Turn "$ARGUMENTS" into durable KB knowledge — proposed, never self-approved.

Steps:

1. Call kb_register_source with the user's exact wording as content (source_type: "message", a short descriptive title). Sources are evidence intake; registering one writes no knowledge.
2. Distill the durable fact(s) into one kb_propose_claim each, citing the registered source id in evidence. Keep each claim one sentence, present tense, self-contained.
3. If the fact is about a person, org, or project the KB doesn't know yet, also file kb_propose_entity (and kb_propose_relation to link it).
4. Report the proposal id(s) and remind the user: pending items are invisible to retrieval until a human runs vouch approve <id> or vouch review.

Never call kb_approve — the human at the gate decides what the KB believes.