Developer Builds Query-Driven Sales Memory System to Fix Account Handoff Gaps

A developer built Waada, a sales history tool that stores account interactions as persistent, queryable memory rather than static summaries. The system uses a tool called Hindsight to scope memory per account and retrieves only the evidence relevant to the specific question being asked. Key features include a commitment ledger that tracks promises and their outcomes dynamically, so a delivered document automatically updates an open commitment without manual syncing. The architecture enforces narrow retrieval jobs — such as promise evidence or objection evidence — instead of broad queries, making context budgeting more predictable. The project also highlighted that model failures and retrieval quality must be evaluated independently to accurately assess system performance.