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exploiting-excessive-data-exposure-in-api

95 / 100 · Low risk

Fine to try.

By plurigrid/asi (GitHub) · coding · 72 stars · scanned at commit 293ce9f

Tests APIs for excessive data exposure where endpoints return more data than the client application needs, relying on the frontend to filter sensitive fields. The tester intercepts API responses and analyzes them for leaked PII, internal identifiers, debug information, or sensitive business data that the UI does not display but the API transmits. This maps to OWASP API3:2023 Broken Object Property Level Authorization. Activates for requests involving API data leakage testing, excessive data exp…

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

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

if [ -e ~/.agents/skills/'exploiting-excessive-data-exposure-in-api' ] || [ -L ~/.agents/skills/'exploiting-excessive-data-exposure-in-api' ]; then echo 'A skill folder named exploiting-excessive-data-exposure-in-api already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/plurigrid/asi' "$d" && git -C "$d" checkout --quiet '293ce9f76e3abcd5ba18db284688bc0d9ac6691d' -- 'plugins/asi/skills/exploiting-excessive-data-exposure-in-api' && mkdir -p ~/.agents/skills && cp -R "$d"/'plugins/asi/skills/exploiting-excessive-data-exposure-in-api' ~/.agents/skills/'exploiting-excessive-data-exposure-in-api' && 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/'exploiting-excessive-data-exposure-in-api' ~/.claude/skills/'exploiting-excessive-data-exposure-in-api' (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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