Sentinel Moderation

The problem

Large communities get raided in bursts: dozens of accounts join and spam within seconds. Rule sets that work for one server cause false positives in another, and a single-process bot cannot keep up once it is in thousands of guilds.

What we built

1. 01Built heuristic raid detection around join patterns rather than fixed thresholds, so a quiet server and a busy one are judged on their own baselines.
2. 02Gave every server its own rule engine, so moderators tune sensitivity without affecting anyone else.
3. 03Added an appeal workflow, so wrongly caught members have a route back in without a moderator digging through logs.
4. 04Deployed it sharded with monitoring and zero-downtime rollouts, so updates ship without the bot going offline.