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crypto-primitives

100 / 100 · Low risk

Fine to try.

By a5c-ai/babysitter (GitHub) · coding · 1,913 stars · scanned at commit feb68ab

Implementation and secure usage of cryptographic primitives including ECDSA, BLS, Schnorr signatures, key derivation, secret sharing, and constant-time operations. Provides guidance for secure cryptographic implementations in blockchain applications.

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/'crypto-primitives' ] || [ -L ~/.agents/skills/'crypto-primitives' ]; then echo 'A skill folder named crypto-primitives already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/a5c-ai/babysitter' "$d" && git -C "$d" checkout --quiet 'feb68abe397acc14f32b34984975c48fedba2b33' -- 'library/specializations/cryptography-blockchain/skills/crypto-primitives' && mkdir -p ~/.agents/skills && cp -R "$d"/'library/specializations/cryptography-blockchain/skills/crypto-primitives' ~/.agents/skills/'crypto-primitives' && 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/'crypto-primitives' ~/.claude/skills/'crypto-primitives' (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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