delivery-checklist

A single wrong number in a client-facing file costs more trust than ten correct ones earn back. Yet most delivery failures trace not to a computation bug but to a habit: trusting the script that built the file instead of opening the file itself. delivery-checklist turns that pre-ship check into a repeatable five-step routine, catching in minutes the errors that would otherwise surface days later.

The five checks are: confirm column structure and header language match what the recipient acts on; open the real file to verify row counts, deduplicate, and scan for placeholders such as TODO, XXX, or stray test values; reconcile every number in the accompanying report back to the file, diffing incremental sheets against their stated baseline so that an "all new" claim becomes a verified fact; place the file in the agreed directory and log a ledger row; then re-read the placed copy exactly as the recipient will. Each step has a concrete pass-or-fail criterion rather than a gut feel.

Built for any agent workflow that ships xlsx or csv tables to clients, downstream teams, or partners. A heuristic dedup key, a ledger entry, a baseline diff—minutes of verification that protect the full chain of credibility behind every delivery.