What problem does it solve? Sending LINE broadcasts without checking how many customers are actually reachable or how much monthly quota remains leads to wasted sends, quota exhaustion, and duplicate deliveries. This Skill enforces a gated workflow that verifies reach and quota before any irreversible broadcast is sent. ## Core Features & Use Cases - Pre-send verification: Checks the actual reachable audience (LINE-linked customers) via segment preview and reconciles it against the remaining monthly messaging quota before composing anything. - Owner approval gate: Presents target segment, reach count, quota status, message copy, and image assets in one summary and sends only a single broadcast after explicit approval. - Safe content handling: Blocks customer free-text (allergies, preferences, survey answers) from being inserted into message copy and requires EXIF-stripped, SVG-sanitized images only. - Use Case: After a churn-winback analysis builds a lapsed-customer segment, use this Skill to confirm 120 of 300 listed customers are LINE-reachable, verify 500 remaining quota, get owner approval, and send exactly one broadcast. ## Quick Start Send a LINE broadcast to the regulars segment announcing the new seasonal menu, but first confirm how many will actually receive it and how much quota is left this month.