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agent-security-hardening

77 / 100 · Review before installing

Check before installing. Some of what it can do is expected: a coding skill usually runs build and test commands.

By LeoYeAI/agent-master-skills (GitHub) · coding · 2,186 stars · scanned at commit 8f88f9a

Security hardening patterns for production AI agents. Covers prompt injection defense (7 rules), data boundary enforcement, read-only defaults for external integrations, WAL protocol for data integrity, health check scripts, integrity gates, rule escalation ladder, and session memory security. Use when hardening agent deployments against adversarial inputs, data leaks, or operational failures. NOT for network security, infrastructure hardening, or penetration testing.

Works with any agent that supports SKILL.md skills.

What this skill can do

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Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'agent-security-hardening' ] || [ -L ~/.agents/skills/'agent-security-hardening' ]; then echo 'A skill folder named agent-security-hardening already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/LeoYeAI/agent-master-skills' "$d" && git -C "$d" checkout --quiet '8f88f9a0dd5a1075d4f0c7626f9d960844d57575' -- 'skills/agent-security-hardening' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/agent-security-hardening' ~/.agents/skills/'agent-security-hardening' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'agent-security-hardening' ~/.claude/skills/'agent-security-hardening' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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