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harden-session-cookie-attributes

82 / 100 · Low risk

Fine to try.

By jiayaoqijia/cryptoskill (GitHub) · other · 81 stars · scanned at commit 0dc9f60

Use when reviewing how an application stores and transmits a login session. Inspects cookie flags, fixes missing Secure/HttpOnly/SameSite and no-rotation bugs, and verifies with curl.

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/'harden-session-cookie-attributes' ] || [ -L ~/.agents/skills/'harden-session-cookie-attributes' ]; then echo 'A skill folder named harden-session-cookie-attributes already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/jiayaoqijia/cryptoskill' "$d" && git -C "$d" checkout --quiet '0dc9f60ab1f3fcae24da49c4cef09c46c589f903' -- 'skills/payments/0xklen-harden-session-cookie-attributes' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/payments/0xklen-harden-session-cookie-attributes' ~/.agents/skills/'harden-session-cookie-attributes' && 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/'harden-session-cookie-attributes' ~/.claude/skills/'harden-session-cookie-attributes' (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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