Symbol filter

The symbol filter checks messages using the saved settings and can apply your chosen sanctions.

Configure and verify

Sign in, select the server and open Protection and select Edit beside Symbol protection. April needs Kick Members and Ban Members for protection processing, along with permissions for the chosen action. Enable the filter, set its options, review global and filter role/channel permissions, choose Delete and/or Warn, then save. See Protection overview for setup and recovery.

The API defaults to amount 100, minimum length 10 and percentage 50; Worker fallbacks are 5, 10 and 50. Percentage is clamped to at least 50. After minimum length, it matches when the count of characters classified as symbols is greater than amount OR the symbol percentage is at least the percentage. With saved 100/10/50, ten symbol characters match; ordinary punctuation may not be classified as a symbol.

The local edit form shows settings before saving; the filter was disabled.

In an authorized test channel, try a harmless example on each side of the boundary and inspect the protection log and actual Discord outcome. Saved settings do not prove delivery or deletion. If the filter does not match, check its enabled state, permissions, exclusions and earlier matching filters. For a false positive, disable or adjust the rule and restore content manually if appropriate. Review automated actions before enabling escalation and messages before relying on warnings.