UI proposal · Claude sidebar redesign
Tier II · Proposal
Formal proposal for replacing chronological chat sorting with attentional proximity (cosine similarity). 3×3 colour state matrix. Billiard ball project membership. Composable sort toggles. Unsorted bin as first-class ledger. The sidebar as attention map, not filing cabinet.
Full brief coming. This page is a placeholder — the tool exists but its documentation is still being written.