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backtesting

100 / 100 · Low risk

Fine to try.

By Leeroo-AI/kapso (GitHub) · devops · 207 stars · scanned at commit 35f7b9b

Build and run a backtest with timestamp discipline, then read its output. Use when implementing a strategy, running the task's evaluation, or checking signal timing, fills and costs.

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/'backtesting' ] || [ -L ~/.agents/skills/'backtesting' ]; then echo 'A skill folder named backtesting already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/Leeroo-AI/kapso' "$d" && git -C "$d" checkout --quiet '35f7b9b26a6b3864fdc8c018577d448c2840345b' -- 'examples/harnesses/trading/skills/backtesting' && mkdir -p ~/.agents/skills && cp -R "$d"/'examples/harnesses/trading/skills/backtesting' ~/.agents/skills/'backtesting' && 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/'backtesting' ~/.claude/skills/'backtesting' (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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