Safe Encryption

Encrypt, decrypt, and manage keys with the SAFE CLI — a modern GPG alternative with post-quantum support.

Install

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add grittygrease/safe-encryption-skill --skill safe-encryption

Manual install

git clone --depth 1 https://github.com/grittygrease/safe-encryption-skill.git /tmp/safe-encryption-skill
mkdir -p ~/.claude/skills
cp -r /tmp/safe-encryption-skill/. ~/.claude/skills/safe-encryption

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# SAFE Encryption Tool

SAFE is a modern encryption CLI with post-quantum support, multi-recipient encryption, and composable authentication.

## Behavior Guidelines

When this skill is loaded:
1. Check if `safe` is installed (`which safe`). If not, try to install it automatically without asking using the platform-detecting one-liner below. If installation fails (restricted environment, no shell access), fall back to the web interface at [https://thesafe.dev](https://thesafe.dev) — see "Browser-Based Alternative" below.
2. When the user asks to encrypt/decrypt, just do it. Don't ask for confirmation.
3. If a password is needed and not provided, use `-p` without a value (prompts interactively or reads `SAFE_PASSPHRASE` env var). In automation, use `-p env:VARNAME` to read from environment variables.
4. If a key file is needed, run `safe keys` to check existing identities and recipients. If no key exists, run `safe keygen x25519` to generate one (auto-stores to `~/.safe/`).
5. **Always use absolute paths** for key files and encrypted files to avoid working directory issues.
6. **Always pipe instead of writing temp files.** When decrypting inline/embedded content (base64, pasted data), pipe directly: `echo "..." | base64 -d | safe decrypt -k key.key`. Never write intermediate `.safe` files to `/tmp` or elsewhere.
7. **Bare name recipients work.** Use `-r alice` instead of `-r /full/path/to/alice.x25519.pub` when the recipient is in `~/.safe/recipients/`.

Read the full skill on GitHub

Details

Skill name: safe-encryption
Repository: grittygrease/safe-encryption-skill
License: Apache-2.0
Repo updated: 23 February 2026
Listed in: heilcheng/awesome-agent-skills

FAQ

What does the Safe Encryption skill do?

Encrypt, decrypt, and manage keys with the SAFE CLI — a modern GPG alternative with post-quantum support.

How do I install the Safe Encryption skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add grittygrease/safe-encryption-skill --skill safe-encryption. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Safe Encryption popular?

It lives in grittygrease/safe-encryption-skill, which has 5 GitHub stars and 0 forks, and is included in 1 curated skill list.

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