File a research idea, original X post or append-only research outcome. Research records preserve the original question, evidence, hold and lifecycle. The caller supplies the conclusion; it is not automatic verification or permission to draft. Same-key replays preserve receipts; changed results or stale new writes conflict. Research is visible in Memory at /app/knowledge-base?open=research (requires act and current draft access). No generation, spend, posting or lifecycle decision. Stable run_key fingerprints preserve the original request. New drafts require action_kind social_post, one existing idea_id or source_idea, and disabled product X production. If no X loop exists, the first authorised draft write creates a disabled storage row without activating generation or posting. Canonical claim caveats travel with the draft. Filing creates an output, materialises a candidate only if absent, and claims a pending Feed move under the output UUID. Replays preserve edits and terminal history. New drafts are original posts. Explicit adopt_legacy recovers exact saved requests as original posts or replies with their saved X status destination. It refuses changed or unclassified actioned work and retains candidate edits. Review and completion are not part of this endpoint.