seo-unlighthouse

Testing & Quality

Multi-page Lighthouse audit via the MIT-licensed Unlighthouse CLI. Free-tier alternative to running PageSpeed against every URL on a site — no API quota burn, runs locally.

QUICK START

How to use this skill

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Prompt to paste

I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/AgriciDaniel/claude-seo/blob/HEAD/extensions/unlighthouse/skills/seo-unlighthouse/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/seo-unlighthouse/. Do not write files or run scripts until I approve.

After I approve, install the complete skill folder, including required referenced files, into that project location. Verify it is discoverable, then tell me its actual invocation name and how to use it. Do not claim it is installed until you have verified it.

Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

seo-unlighthouse

Run Lighthouse against every URL on a site (up to a configurable cap) and aggregate the results. Useful when:

PageSpeed Insights' free quota (25k QPD) isn't enough for a large site.
You want offline / local CWV measurement (CI integration, restricted environments).
You need a quick site-wide regression check after a deploy.

Prerequisites

Run extensions/unlighthouse/install.sh (no API key needed).
Node 18+ on $PATH.

Routing

Command	Effect
`/seo unlighthouse <url>`	Mobile audit, up to 200 routes, JSON+HTML report in a temp dir
`/seo unlighthouse <url> --device desktop`	Desktop form factor
`/seo unlighthouse <url> --max-routes 50 --output-dir ./reports`	Cap + persist

All flags forward to scripts/unlighthouse_run.py which handles url_safety pre-flight and subprocess timeout management.

Output handling

The wrapper reads ci-result.json from the Unlighthouse output dir and returns it parsed. Aggregate fields:

score.performance (median across audited routes)
score.accessibility, score.bestPractices, score.seo
Per-route breakdown is available in <output_dir>/ci-result.json

Cross-skill delegation

For single-URL field data (CrUX), use seo-google psi / seo-google crux.
For LCP subpart decomposition on slow pages, use the scripts/lcp_subparts.py workflow (Phase C).