seo-audit

seo-audit is a skill for Claude Code, Codex from rajitsaha/100xprism. It costs 96 tokens per session (2,120 once invoked), scanned A, original, MIT.

A process for checking a website's search-engine visibility, including technical issues, page metadata, crawling, indexing, traffic changes, and performance. Search-engine optimization, or SEO, is the practice of improving how pages appear in unpaid search results.

In plain words
What is it for?
Use it to audit a whole site or selected pages, investigate crawl and indexing problems, review metadata and Core Web Vitals, diagnose traffic changes, and recommend SEO improvements.
Why use it?
It turns concerns such as falling traffic or poor rankings into a structured review of possible causes. It also warns that static page fetches may miss structured data added by JavaScript or plugins.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to audit a whole site or selected pages, investigate crawl and indexing problems, review metadata and Core Web Vitals, diagnose traffic changes, and recommend SEO improvements.

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Install with agentmods
npx agentmods add skills/rajitsaha/100xprism/seo-audit
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add rajitsaha/100xprism --skill seo-audit
Clone the repo
git clone --depth 1 https://github.com/rajitsaha/100xprism

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for seo-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/rajitsaha/100xprism/seo-audit/github.svg)](https://agentmods.dev/skills/rajitsaha/100xprism/seo-audit)
Your own site
<a href="https://agentmods.dev/skills/rajitsaha/100xprism/seo-audit"><img src="https://agentmods.dev/badge/skills/rajitsaha/100xprism/seo-audit/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for seo-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/rajitsaha/100xprism/seo-audit"><img src="https://agentmods.dev/badge/skills/rajitsaha/100xprism/seo-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,120 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00096 $0.02120
Opus 5 $0.00048 $0.01060
Sonnet 5 $0.00019 $0.00424
Haiku 4.5 $0.00010 $0.00212

Measured 12d ago against content hash 346d52cda908, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

seo-audit scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

**`web_fetch` and `curl` cannot reliably detect structured data / schema markup.** Many CMS plugins (AIOSEO, Yoast, RankMath) inject JSON-LD via client-side JavaScript — it won't appear in static HTML or `web_fetch` outp
.agents/skills/seo-audit/SKILL.md · 221 lines

How it starts

The opening of the file, as written. The whole thing — 221 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SEO Audit

Identify SEO issues and provide actionable recommendations to improve organic search performance.

Initial Assessment

Product context: If .agents/product-marketing-context.md exists (or .claude/product-marketing-context.md in older setups), read it first and tailor output to it; only ask for what it doesn't cover.

Before auditing, understand:

  1. Site Context — site type (SaaS, e-commerce, blog, etc.); primary business goal for SEO; priority keywords/topics
  2. Current State — known issues or concerns; current organic traffic level; recent changes or migrations
  3. Scope — full site or specific pages; technical + on-page or one focus area; access to Search Console / analytics

Audit Framework

Schema Markup Detection Limitation

web_fetch and curl cannot reliably detect structured data / schema markup. Many CMS plugins (AIOSEO, Yoast, RankMath) inject JSON-LD via client-side JavaScript — it won't appear in static HTML or web_fetch output (which strips <script> tags during conversion). Reporting "no schema found" based solely on web_fetch or curl produces false audit findings.

To accurately check schema markup, use one of:

  1. Browser tool — render the page and run: document.querySelectorAll('script[type="application/ld+json"]')
  2. Google Rich Results Testhttps://search.google.com/test/rich-results
  3. Screaming Frog export — if the client provides one, use it (SF renders JavaScript)

Priority Order

  1. Crawlability & Indexation (can Google find and index it?)
  2. Technical Foundations (is the site fast and functional?)
  3. On-Page Optimization (is content optimized?)
  4. Content Quality (does it deserve to rank?)
  5. Authority & Links (does it have credibility?)

Technical SEO Audit

Crawlability

Robots.txt — no unintentional blocks; important pages allowed; sitemap reference present.

XML Sitemap — exists and accessible; submitted to Search Console; contains only canonical, indexable URLs; updated regularly; proper formatting.

Read the full file on GitHub · 221 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 221 lines · 96 tokens per session scan A 346d52cda908

Subscribe to this mod's changes

seo-audit is a skill published in the GitHub repository rajitsaha/100xprism (10 stars, last pushed 12d ago), licensed MIT. It adds 96 tokens to every session and 2,120 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.