← All skills

assertion-synthesizer

100 / 100 · Low risk

Fine to try.

By ArabelaTso/Skills-4-SE (GitHub) · coding · 260 stars · scanned at commit 4f38503

Generate test assertions from existing code implementation. Use when the user has implementation code without tests or incomplete test coverage, and needs assertions synthesized by analyzing the code's behavior, inputs, outputs, and state changes. Supports Python (pytest/unittest), Java (JUnit/AssertJ), and JavaScript/TypeScript (Jest/Chai). Handles equality checks, collections, exceptions, and state verification.

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/'assertion-synthesizer' ] || [ -L ~/.agents/skills/'assertion-synthesizer' ]; then echo 'A skill folder named assertion-synthesizer already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/ArabelaTso/Skills-4-SE' "$d" && git -C "$d" checkout --quiet '4f38503747e0617504bce5329283ef837d375c09' -- 'skills/assertion-synthesizer' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/assertion-synthesizer' ~/.agents/skills/'assertion-synthesizer' && 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/'assertion-synthesizer' ~/.claude/skills/'assertion-synthesizer' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

Badge for your README

The badge for ArabelaTso/Skills-4-SE shows the score of its lowest-scoring skill.

[![SkillTrust](https://zalavijaysinh.github.io/skilltrust/badges/ArabelaTso/Skills-4-SE.svg)](https://zalavijaysinh.github.io/skilltrust/repos/ArabelaTso/Skills-4-SE/)

Score history