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mz-query-perf

100 / 100 · Low risk

Fine to try.

By MaterializeInc/materialize (GitHub) · data · 6,399 stars · scanned at commit b411e79

Analyze and optimize a Console/catalog SQL query in user space — diagnose its plan on real relations, then measure candidate rewrites with a faithful synthetic-fleet sweep. Use when asked to find performance improvements for a query that reads mz_catalog / mz_internal relations.

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/'mz-query-perf' ] || [ -L ~/.agents/skills/'mz-query-perf' ]; then echo 'A skill folder named mz-query-perf already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/MaterializeInc/materialize' "$d" && git -C "$d" checkout --quiet 'b411e79ae072efa9fba3ffef48546c0dcc581701' -- '.agents/skills/mz-query-perf' && mkdir -p ~/.agents/skills && cp -R "$d"/'.agents/skills/mz-query-perf' ~/.agents/skills/'mz-query-perf' && 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/'mz-query-perf' ~/.claude/skills/'mz-query-perf' (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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