chore: remove claude specific skills

agent-lib.lock.json

@@ -9,17 +9,19 @@
         "skills_dir": "skills"
       },
       "selection": {
-        "mode": "all"
+        "mode": "all",
+        "exclude": [
+          "claude-handoff",
+          "git-guardrails-claude-code"
+        ]
       },
       "inventory": {
         "skills": [
           "ask-matt",
-          "claude-handoff",
           "code-review",
           "codebase-design",
           "diagnosing-bugs",
           "domain-modeling",
-          "git-guardrails-claude-code",
           "grill-me",
           "grill-with-docs",
           "grilling",