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overlayfs-runtime-isolation

95 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By yanacuti1121/Yana-AI (GitHub) · coding · 13 stars · scanned at commit 54d4aa9

Isolate agent file-system writes using OverlayFS and bubblewrap (bwrap). Core directories mounted read-only; all agent writes go to RAM-backed tmpfs. Zero persistence on session end. Anti-graffiti immutable surface pattern.

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/'overlayfs-runtime-isolation' ] || [ -L ~/.agents/skills/'overlayfs-runtime-isolation' ]; then echo 'A skill folder named overlayfs-runtime-isolation already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/yanacuti1121/Yana-AI' "$d" && git -C "$d" checkout --quiet '54d4aa9fa3241319f4d37212bd23826658bf6bed' -- '.claude/skills/overlayfs-runtime-isolation' && mkdir -p ~/.agents/skills && cp -R "$d"/'.claude/skills/overlayfs-runtime-isolation' ~/.agents/skills/'overlayfs-runtime-isolation' && 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/'overlayfs-runtime-isolation' ~/.claude/skills/'overlayfs-runtime-isolation' (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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Score history

Also found in

Identical copies of this skill exist at:

• yanacuti1121/Yana-AI/core/skills/overlayfs-runtime-isolation