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covert-channel-assessment

100 / 100 · Low risk

Fine to try.

By zero-lab-ai/skills (GitHub) · coding · 152 stars · scanned at commit 1e2f93f

Assesses covert-channel and data-egress exposure, then plans or records bounded purple-team validation with synthetic data. Use when evaluating DNS, web, cloud, ICMP, tunnel, timing, steganographic, or dead-drop paths without turning a plausible route into a claim of successful exfiltration.

Works with any agent that supports SKILL.md skills.

What this skill can do

We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.

Install

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

if [ -e ~/.agents/skills/'covert-channel-assessment' ] || [ -L ~/.agents/skills/'covert-channel-assessment' ]; then echo 'A skill folder named covert-channel-assessment already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/zero-lab-ai/skills' "$d" && git -C "$d" checkout --quiet '1e2f93fed4c8fdb0d7fb35c72c3b0763d2d73cac' -- 'plugins/network-protocol-security/skills/covert-channel-assessment' && mkdir -p ~/.agents/skills && cp -R "$d"/'plugins/network-protocol-security/skills/covert-channel-assessment' ~/.agents/skills/'covert-channel-assessment' && 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/'covert-channel-assessment' ~/.claude/skills/'covert-channel-assessment' (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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