How do I install the Onpage Audit skill?

Run npx skillmds@latest add florianbruniaux/onpage-audit in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Onpage Audit safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Onpage Audit?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Onpage Audit free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Onpage Audit?

FlorianBruniaux (@florianbruniaux) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Onpage Audit by florianbruniaux — Agent Skill

Name: Onpage Audit
Author: FlorianBruniaux

Onpage Audit

Complete on-page audit of a single URL in one pass, combining heading structure, internal linking, technical meta tags, content quality and schema, then cross-checked against real Search Console data before any recommendation is made. Use when asked for a full page audit, an all-in-one check, or what to fix on a page. Aussi déclenché en français par "audit complet de cette page", "tout ce qui cloche sur cette page", "qu'est-ce que je corrige sur cette URL", "audit on-page", "passe cette page au peigne fin", "check complet", "audit tout-en-un".

File contents

On-Page Audit

One URL in, one prioritized fix list out. Five tools, no auth beyond GSC, no quota burned on the page-level checks.

Input

A page URL. The GSC property is resolved with list_properties when the user has not named it.

Steps

Run the five page-level tools. None of them needs Google credentials, so they run even when the property is not configured yet.

heading_audit: H1 uniqueness, level jumps, title vs H1, empty headings
internal_links_audit: link placement by zone, footer-only targets, anchors
page_technical_audit: title and description length, canonical, robots, viewport
content_quality: thin content, filler, information density, repetition
schema_validate: structured data present and valid

Then pull the ground truth, which is what turns findings into priorities:

content_brief: the queries this page already ranks for, and its GA4 engagement
crux_page_vitals: real-user Core Web Vitals, when the page has enough field data

The rule that overrides every finding

No destructive recommendation without the data behind it.

Before proposing to delete a page, noindex it, consolidate it into another, or strip content, read its clicks, impressions and indexing status over 90 days. A page that looks thin and generic next to a long article can still be indexed and bringing in traffic. Off-the-shelf SEO tools get this wrong routinely and recommend deleting whole sets of working local pages.

If the data says the page performs, the finding is downgraded to an observation and labelled as such. Say so out loud in the report rather than dropping it silently.

Same discipline on severity. A red flag on a page with no impressions is not urgent. A low-severity finding on the page that carries the most clicks probably is.

Output format

Verdict: one line, what state the page is in.

Where it stands today: clicks, impressions, average position, top three queries. This section comes first because it sets the weight of everything after it.

Findings, grouped by tool, each with its severity as returned. Do not invent severities and do not reorder them by feel.

Fix list, and this is the part that matters:

#	Fix	Where	Impact	Effort

Sorted by impact against the actual traffic of the page. Each row names the exact element to change and the value to change it to. A row that says "optimize the title" is not a row; "rewrite the title as X because the page ranks 12th on query Y" is.

Observations kept aside: findings the GSC data contradicted, with the number that contradicted them.

What this skill does not do

It does not touch the site. It does not call submit_url, submit_batch, indexnow_submit or sitemaps_delete. Those are write tools and they follow the confirmation protocol in CLAUDE.md, separately and explicitly.

---name: onpage-auditdescription: Complete on-page audit of a single URL in one pass, combining heading structure, internal linking, technical meta tags, content quality and schema, then cross-checked against real Search Console data before any recommendation is made. Use when asked for a full page audit, an all-in-one check, or what to fix on a page. Aussi déclenché en français par "audit complet de cette page", "tout ce qui cloche sur cette page", "qu'est-ce que je corrige sur cette URL", "audit on-page", "passe cette page au peigne fin", "check complet", "audit tout-en-un".---# On-Page AuditOne URL in, one prioritized fix list out. Five tools, no auth beyond GSC, no quotaburned on the page-level checks.## InputA page URL. The GSC property is resolved with `list_properties` when the user hasnot named it.## StepsRun the five page-level tools. None of them needs Google credentials, so they runeven when the property is not configured yet.1. `heading_audit`: H1 uniqueness, level jumps, title vs H1, empty headings2. `internal_links_audit`: link placement by zone, footer-only targets, anchors3. `page_technical_audit`: title and description length, canonical, robots, viewport4. `content_quality`: thin content, filler, information density, repetition5. `schema_validate`: structured data present and validThen pull the ground truth, which is what turns findings into priorities:6. `content_brief`: the queries this page already ranks for, and its GA4 engagement7. `crux_page_vitals`: real-user Core Web Vitals, when the page has enough field data## The rule that overrides every finding**No destructive recommendation without the data behind it.**Before proposing to delete a page, noindex it, consolidate it into another, or stripcontent, read its clicks, impressions and indexing status over 90 days. A page thatlooks thin and generic next to a long article can still be indexed and bringing intraffic. Off-the-shelf SEO tools get this wrong routinely and recommend deletingwhole sets of working local pages.If the data says the page performs, the finding is downgraded to an observation andlabelled as such. Say so out loud in the report rather than dropping it silently.Same discipline on severity. A red flag on a page with no impressions is not urgent.A low-severity finding on the page that carries the most clicks probably is.## Output format**Verdict**: one line, what state the page is in.**Where it stands today**: clicks, impressions, average position, top three queries.This section comes first because it sets the weight of everything after it.**Findings**, grouped by tool, each with its severity as returned. Do not inventseverities and do not reorder them by feel.**Fix list**, and this is the part that matters:| # | Fix | Where | Impact | Effort ||---|---|---|---|---|Sorted by impact against the actual traffic of the page. Each row names the exactelement to change and the value to change it to. A row that says "optimize the title"is not a row; "rewrite the title as X because the page ranks 12th on query Y" is.**Observations kept aside**: findings the GSC data contradicted, with the number thatcontradicted them.## What this skill does not doIt does not touch the site. It does not call `submit_url`, `submit_batch`,`indexnow_submit` or `sitemaps_delete`. Those are write tools and they follow theconfirmation protocol in CLAUDE.md, separately and explicitly.

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