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perf

Make a studio's game faster with a measured loop in real GPU Chrome on a computer and an emulated phone. Measure frame times, startup, downloads, memory and netplay for both server-room replicas or a browser-host pair. Profile hot functions, try one small change, compare alternating runs, and keep it only when the improvement exceeds noise, guarded measures hold and the two-browser check passes. Write the report in perf/. Use for stutter, lag, slow loading, phone drain, rendering costs or an overnight performance pass.

plugins/homie-rocks/homie/skills/perf/SKILL.md

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Network or broad shell
Last checked
Nov 4, 2026

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1,537
Repository last updated
Nov 7, 2026
License
Apache-2.0

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# Make a game faster, honestly

The question is never "does it feel faster". It is: **is this build measurably better than the one before it, beyond
the noise, without looking or playing any differently, and does it still work?** Every number here comes from a real
Chrome on this computer's GPU, two browsers in a room playing the same seeded presses every run. New games use server rules by default. When the server hosts the rules, both browsers are replicas (`replica` and `replica-2`); reports and regression guards include both, and the default goal uses `replica` instead of `host`. An explicit `--goal` keeps the role you name.

One script: `scripts/perf.mjs` in this skill's folder (Claude Code:
`node "${CLAUDE_PLUGIN_ROOT}/skills/perf/scripts/perf.mjs" <command>`), run from inside the studio. It drives the
studio's own `@homie-rocks/studio` (0.19.0 or later: `homie-studio perf`, `perf compare`, `check`, `build --maps`;
0.19.1 also reads whether each big script is minified),
opens at most two browsers at a time, all muted, and writes everything it measures under `.perf/<game>/`
(git-ignored). It prints paths and a few numbers, never the data: read the files it names.

## 0. Before anything