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 - **[SHADOWPR0/security-bluebook-builder](https://github.com/SHADOWPR0/security-bluebook-builder)** - Build a concise, normative security Blue Book for sensitive apps (threat model, data classes, auth/session, logging/audit, retention, IR, security gates)
 - **[obra/defense-in-depth](https://github.com/obra/superpowers/blob/main/skills/defense-in-depth/SKILL.md)** - Multi-layered security approaches
 - **[haunchen/n8n-skill](https://github.com/haunchen/n8n-skills)** - Enables AI assistants to understand and operate n8n workflows with information on 542 nodes and 20 templates.
-- **[materials-simulation-skills](https://github.com/HeshamFS/materials-simulation-skills)** - Agent skills for computational materials science: numerical stability, time-stepping, linear solvers, mesh generation, simulation validation, parameter optimization, and post-processing.  
+- **[materials-simulation-skills](https://github.com/HeshamFS/materials-simulation-skills)** - Agent skills for computational materials science: numerical stability, time-stepping, linear solvers, mesh generation, simulation validation, parameter optimization, and post-processing.
+- **[wrsmith108/varlock-claude-skill](https://github.com/wrsmith108/varlock-claude-skill)** - Secure environment variable management ensuring secrets are never exposed in Claude sessions, terminals, logs, or git commits
 
 ## Articles and Tutorials