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NO.
#b6b43eb0
Topic
AGENTS & TOOLS
Source
r/ClaudeAI
Published
2026-05-17 05:50:12
Importance
★ 5/10 — radar 50
`Claude Opus` Turns One PSI Fix Into a 9-Page Frontend Cleanup Run
FIG-0061:1

`Claude Opus` Turns One PSI Fix Into a 9-Page Frontend Cleanup Run

A one-page PageSpeed cleanup became a reusable ADR_pagespeed-l0-fixes-playbook.md. The repeatable bit is the playbook: capture repo-specific causes once, then let agents apply the checklist across similar pages.

[ KEY POINTS ]
  1. One manual page fix produced a checklist with issue, root cause, touched files, validation steps, and anti-patterns.
  2. A fresh session split work into 3 subagents and edited 41 frontend files across 9 pages in about 15 minutes.
  3. Useful patterns included font preload, early gtag, Supabase leaking into client chunks, heavy global CSS, bad next/image sizes, and hydration before LCP.
  4. The trick is not magic prompting. It is converting the first painful PSI pass into repo-specific operational memory.
Originalwww.reddit.com/r/ClaudeAI/comments/1tfgq66/opus_is_ridiculous_for_frontend_cleanup/Read original →

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