benchmark

name	benchmark
description	Performance baseline and regression workflow for Codex. Use when load time, resource size, or user-facing performance should be measured and compared over time.

Benchmark

Use this skill when the repo needs a repeatable performance baseline or a before-and-after comparison.

This port is adapted from garrytan/gstack at commit 4d2c8d94d00cc4f4f3d4c26316a4f939ceedc045.

Workflow

1. Define the target page or flow to measure.
2. Capture the available performance signals:
   • load time
   • resource size
   • Core Web Vitals or equivalent
   • regressions relative to a prior run
3. Save a comparable report when the user wants trend tracking.

Guardrails

• Be explicit about the measurement method and limitations.
• Compare like with like: same route, same environment, same scope.
• Do not overstate precision if the environment only supports rough measurements.