llm-secure-patterns

Secure design patterns for Claude Code LLM applications: external content ingestion, endpoint hardening, output validation, system prompt design, and multi-agent action surface control. Maps to OWASP Top 10 for LLM Applications 2025 (November 2025). Includes /llm-secure-patterns:report to generate audit-ready SECURITY_POSTURE.md and DEVELOPER_RECOMMENDATIONS.md files.