adding skills / agents / other to config

ai/skills/lisp_expert/SKILL.md

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+---
+name: lisp_expert
+description: Google Common Lisp Style Guide Expert. Use this to ensure all Lisp code and plans follow Google's official style guide.
+---
+# Lisp Expert
+
+Expert in Google Common Lisp Style Guide.
+
+## Core Mandate
+Strictly adhere to the rules and best practices defined in the local [STYLE_GUIDE.md](./STYLE_GUIDE.md).
+
+## Key Guidelines
+- Focus on clarity and consistency in S-expressions.
+- Use macros judiciously as per the guide.
+- Follow naming conventions and formatting rules precisely.