How we deploy WhatsApp customer agents from one prompt: scoped actions and abuse limits
TheRedfather · reddit · 2026-11-03
A practitioner shares their system for deploying customer-facing WhatsApp agents in one shot, solving the pain of the WhatsApp Business API and Meta developer portal. The flow: describe business, responsibilities and handoff guardrails in a prompt; encode allowed system interactions as heavily scoped actions (fixed parameters like addbooking(name, date, partysize)) wrapping third-party tools—Google Sheets, Airtable, custom MCP servers—or let the agent vibe-code its own companion app (example: a restaurant booking site + admin backend); link an existing number. Key hardening: agents are purely reactive to inbound messages, per-contact burst limits plus daily caps to prevent bill abuse, inbound debouncing and outbound pacing. They ask how others handle these problems.
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