← The Lab/N° 030 · CLI·Shipped 2026-05

WhatsApp Dedup Guard

CLI that scans a WhatsApp bot inbox for duplicate message files caused by parallel LLM processing.

whatsapp-dedup-guard is a Python CLI that finds and removes duplicate message files in a WhatsApp bot inbox. It groups files by matching message ID, keeps the oldest copy, and either flags or deletes the redundant ones — fixing duplicates created when parallel LLMs process the same message. It uses only the Python standard library, with no external dependencies.

Next in the lab →

Google Apps Script MCP Server

MCP connector that lets Claude list, read, edit, deploy, and run Google Apps Script projects.

Build log

Get an email when I ship a new prototype or essay. No funnel — just the work.