diff --git a/.codex/skills-index.json b/.codex/skills-index.json
index f7f266c..c9add5b 100644
--- a/.codex/skills-index.json
+++ b/.codex/skills-index.json
@@ -111,7 +111,7 @@
       "name": "senior-security",
       "source": "../../engineering-team/senior-security",
       "category": "engineering",
-      "description": "Comprehensive security engineering skill for application security, penetration testing, security architecture, and compliance auditing. Includes security assessment tools, threat modeling, crypto implementation, and security automation. Use when designing security architecture, conducting penetration tests, implementing cryptography, or performing security audits."
+      "description": "Security engineering toolkit for threat modeling, vulnerability analysis, secure architecture, and penetration testing. Includes STRIDE analysis, OWASP guidance, cryptography patterns, and security scanning tools."
     },
     {
       "name": "tdd-guide",