Facebook Marketplace Seller Communication

v2.0+: Actual message sending is delegated to the shared facebook-marketplace-message-sender skill; this skill remains the draft-and-tone authority for buyer-to-seller outreach. Outbound drafts are also pre-checked by facebook-marketplace-safety-guard for off-platform asks before sending. Every send still requires the per-message approval_token enforced by message-sender.

Use this skill when the user has identified a listing they actually want to pursue and now needs the agent to communicate like a competent Marketplace buyer.

This skill covers three linked jobs:

1. ask for missing information
2. negotiate if appropriate
3. trigger and coordinate a meetup after validating the user's availability

This skill is about buyer-to-seller communication style, not just pricing theory.

What good output looks like