diff --git a/README.md b/README.md
index 0670365..050dec9 100644
--- a/README.md
+++ b/README.md
@@ -219,6 +219,7 @@ Install or disable them dynamically with the `/plugin` command — enabling you
 ### Development Engineering
 - [claude-sounds](https://github.com/culminationAI/claude-sounds)
 - [ai-engineer](./plugins/ai-engineer)
+- [master-of](https://github.com/devrudals/master-of) - Keeps rarely-used Claude Code skills, commands, and agents dormant behind domain gates, activating only what a task needs instead of loading everything into every session's context.
 - [claw-army/claude-node](https://github.com/claw-army/claude-node) - Python subprocess bridge for Claude Code CLI, giving Python code direct access to Claude Code native capabilities via stream-json.
 - [api-integration-specialist](./plugins/api-integration-specialist)
 - [backend-architect](./plugins/backend-architect)