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osx-tuning

87 / 100 · Low risk

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

By dimetron/pi-go (GitHub) · coding · 224 stars · scanned at commit 06a9ae1

Tune macOS resource limits and sysctls for best performance with Go development, Docker/OrbStack, and Linux VMs. Use this skill whenever the user asks to "tune macOS", "raise file descriptor limits", "fix ulimit", "optimize for Docker/Go/VM performance", "increase maxfiles/maxproc/somaxconn", or reports EMFILE/too-many-open-files, connection refused under load, or slow container/VM networking. Covers the full chain: launchd maxfiles, per-shell ulimit, and boot-time sysctl tuning via LaunchDaemo…

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/'osx-tuning' ] || [ -L ~/.agents/skills/'osx-tuning' ]; then echo 'A skill folder named osx-tuning already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/dimetron/pi-go' "$d" && git -C "$d" checkout --quiet '06a9ae1e294164c885e65ada53101d4159a2c2b0' -- 'internal/extension/bundled_skills/osx-tuning' && mkdir -p ~/.agents/skills && cp -R "$d"/'internal/extension/bundled_skills/osx-tuning' ~/.agents/skills/'osx-tuning' && 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/'osx-tuning' ~/.claude/skills/'osx-tuning' (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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