diff --git a/utils-coding/utils-ai.md b/utils-coding/utils-ai.md
index 5d4e1522..e2ba7d28 100644
--- a/utils-coding/utils-ai.md
+++ b/utils-coding/utils-ai.md
@@ -790,6 +790,7 @@
 -   <https://github.com/anthropics/financial-services-plugins>
 -   <https://github.com/anthropics/claude-code-security-review>
 -   <https://github.com/EveryInc/compounding-engineering-plugin>
+-   <https://github.com/aqua5230/usage>
 
 ## TOOLS: CODING: OSS OPTIMIZE PROMPT RULES / SKILLS