feat: initial open marketplace with llm-security, config-audit, ultraplan-local

plugins/llm-security/tests/fixtures/posture-scan/grade-a-project/agents/scanner-agent.md

@@ -0,0 +1,10 @@
+---
+name: scanner-agent
+description: Scans files for security issues
+model: sonnet
+tools: ["Read", "Glob", "Grep"]
+---
+
+# Scanner Agent
+
+Read-only agent that scans project files.