WhatsApp Validator

Overview

whatsapp-validator validates a list of phone numbers to confirm which are registered on WhatsApp before you run outreach. It removes undeliverable numbers and returns a clean, import-ready list so you don't waste sends on numbers that aren't reachable.

How it works

1. 1

   Takes your list of phone numbers (with country codes)

2. 2

   Validates each with validate_whatsapp, retrying failures up to 5 times

3. 3

   Marks each number as on WhatsApp or not

4. 4

   Separates the validated numbers from the undeliverable ones

5. 5

   Outputs a clean, import-ready list with a summary of the hit rate

How to use it

1. 1

   Download the skill file — it saves as whatsapp-validator.zip.

2. 2

   In Claude, open Settings → Capabilities → Skills and upload the .zip (or unzip the whatsapp-validator/ folder into .claude/skills/ for Claude Code).

3. 3

   Tailor it if needed — e.g. 'Customize whatsapp-validator to output the clean list as a CSV block'.

4. 4

   Trigger it anytime by typing /whatsapp-validator and pasting the numbers to validate.

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