fizz

72 / 100 · Review before installing

Check before installing. Some of what it can do is expected: a security skill usually runs scanners and checks websites.

By pashov/skills (GitHub) · security · 1,307 stars · scanned at commit eacfc09

Generate Echidna/Medusa-compatible Solidity fuzz suites from Foundry or Hardhat projects. Trigger on "fizz", "generate fuzz suite", "build fuzz harness", "stateful fuzzing", "fuzzing harness", "property testing", and "invariant suite".

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

This is disclosed by the author in the skill's SKILL.md or README. Expected for a security skill.

Found in 11 places.

fizz/SKILL.md, line 139git clone --depth 1 https://github.com/pashov/skills.git /tmp/pashov-skills-xray-install \
fizz/scripts/fizz_sync.js, line 557const { execSync } = require('child_process');
fizz/scripts/fizz_sync.js, line 632execSync(cmd, { stdio: 'inherit' });

Show 8 more

fizz/scripts/lib/log-viewer.js, line 14const { execFile } = require('child_process');
fizz/scripts/run_echidna.js, line 25const { spawn } = require('child_process');
fizz/scripts/run_medusa.js, line 29const { spawn } = require('child_process');
fizz/scripts/run_medusa.js, line 306const { execFile } = require('child_process');
fizz/scripts/select_functions.js, line 27const { execSync } = require('child_process');
fizz/scripts/select_functions.js, line 621if (platform === 'darwin') execSync(`open "${serverURL}"`);
fizz/scripts/select_functions.js, line 622else if (platform === 'win32') execSync(`start "" "${serverURL}"`);
fizz/scripts/select_functions.js, line 623else execSync(`xdg-open "${serverURL}"`);

Changes files outside its own folder

This is disclosed by the author in the skill's SKILL.md or README.

Found in 2 places.

fizz/SKILL.md, line 140&& mkdir -p ~/.claude/skills \
fizz/SKILL.md, line 141&& cp -r /tmp/pashov-skills-xray-install/x-ray ~/.claude/skills/x-ray

Downloads and installs other software

The author does not mention this.

Found in 1 place.

fizz/scripts/ensure_foundry.sh, line 20echo " curl -L https://foundry.paradigm.xyz | bash"

Sends data to these websites: foundry.paradigm.xyz

The author does not mention this. Expected for a security skill.

Found in 3 places.

fizz/scripts/ensure_foundry.sh, line 20echo " curl -L https://foundry.paradigm.xyz | bash"
fizz/scripts/lib/log-viewer.js, line 308const response = await fetch('/log?offset=' + offset, { cache: 'no-store' });
fizz/scripts/select_functions.js, line 501const res = await fetch(SERVER_URL + '/save', {

Install

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

if [ -e ~/.agents/skills/'fizz' ] || [ -L ~/.agents/skills/'fizz' ]; then echo 'A skill folder named fizz already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/pashov/skills' "$d" && git -C "$d" checkout --quiet 'eacfc09b365d2697b83355909d0300607e596ffc' -- 'fizz' && mkdir -p ~/.agents/skills && cp -R "$d"/'fizz' ~/.agents/skills/'fizz' && 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/'fizz' ~/.claude/skills/'fizz' (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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Score history

Date	Version	Score
2026-11-08	`eacfc09`	72
2026-11-07	`eacfc09`	72