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leakage-scan

100 / 100 · Low risk

Fine to try.

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

Static scan for data-access leaks on a prediction task: the shape-neutral rules (a label read from test data or a sample submission, a transform fitted on train and test together, a fit on validation labels) and, on a relational benchmark database, the library's own traps (reads outside the sanitized copy, the test table unmasked, a cache location overridden, a reach outside a per-tick snapshot, a load that truncates under per-row seed time). Use on the attempt's diff before launching the evalu…

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/'leakage-scan' ] || [ -L ~/.agents/skills/'leakage-scan' ]; then echo 'A skill folder named leakage-scan 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 "$d" checkout --quiet '35f7b9b26a6b3864fdc8c018577d448c2840345b' -- 'src/kapso/harness/bundled/predictive-modelling/skills/leakage-scan' && mkdir -p ~/.agents/skills && cp -R "$d"/'src/kapso/harness/bundled/predictive-modelling/skills/leakage-scan' ~/.agents/skills/'leakage-scan' && 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/'leakage-scan' ~/.claude/skills/'leakage-scan' (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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