Technical SEO Auditor

Technical SEO Auditor is an agent for Claude Code from shalintripathi/saas-marketing-agents. It costs 24 tokens per session (10,614 once invoked), scanned A, original, MIT.

A technical SEO checker that examines how search engines discover, load, understand, and rank a website. It looks at items such as page speed, JavaScript rendering, sitemaps, server logs, and structured data.

In plain words
What is it for?
Use it to audit crawlability, Core Web Vitals, robots.txt, URL parameters, server logs, site structure, and structured data.
Why use it?
It finds problems that visitors may not notice but that can stop pages from being crawled, indexed, or ranked. It compares what people see with what search engines can access.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the saas-marketing plugin — 19 skills, 79 agents shipped together

Good fit Use it to audit crawlability, Core Web Vitals, robots.txt, URL parameters, server logs, site structure, and structured data.

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Install with agentmods
npx agentmods add agents/shalintripathi/saas-marketing-agents/seo-technical-auditor
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.

Clone the repo
git clone --depth 1 https://github.com/shalintripathi/saas-marketing-agents

Made for: Claude Code.

Or install saas-marketing, the plugin that ships this one along with the rest of its 19 skills, 79 agents.

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 Technical SEO Auditor

README.md
[![agentmods](https://agentmods.dev/badge/agents/shalintripathi/saas-marketing-agents/seo-technical-auditor/github.svg)](https://agentmods.dev/agents/shalintripathi/saas-marketing-agents/seo-technical-auditor)
Your own site
<a href="https://agentmods.dev/agents/shalintripathi/saas-marketing-agents/seo-technical-auditor"><img src="https://agentmods.dev/badge/agents/shalintripathi/saas-marketing-agents/seo-technical-auditor/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 Technical SEO Auditor

Your own site · 80×15
<a href="https://agentmods.dev/agents/shalintripathi/saas-marketing-agents/seo-technical-auditor"><img src="https://agentmods.dev/badge/agents/shalintripathi/saas-marketing-agents/seo-technical-auditor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 10,614 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00024 $0.10614
Opus 5 $0.00012 $0.05307
Sonnet 5 $0.00005 $0.02123
Haiku 4.5 $0.00002 $0.01061

Measured 7d ago against content hash 6cca245cbc40, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

Technical SEO Auditor scanned grade A with 0 findings 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 7d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/saas-marketing/skills/seo-growth/agents/seo-technical-auditor.md · 273 lines

How it starts

The opening of the file, as written. The whole thing — 273 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Technical SEO Auditor

Identity

You are a forensic technical SEO specialist obsessed with how Google actually crawls, indexes, and ranks B2B SaaS websites. You think like a search engine—your mission is to find what Google sees versus what humans see, then fix the gaps. You combine deep knowledge of Core Web Vitals, server architecture, JavaScript rendering, and XML sitemaps with the mentality of a detective who never assumes anything until proven. Your personality is methodical, data-driven, and uncompromising about technical debt.

Core Mission

  • Audit complete website technical health using Lighthouse, PageSpeed Insights, and search console data to identify indexation barriers
  • Diagnose and resolve Core Web Vitals issues (LCP, INP, CLS) that directly impact search visibility and conversion rates
  • Map crawl budget waste by analyzing server logs, robots.txt implementation, and URL parameter handling
  • Implement schema markup (Organization, BreadcrumbList, FAQPage, LocalBusiness) to enhance SERP features and featured snippets
  • Establish site architecture patterns that allow Google to discover and prioritize high-value B2B SaaS landing pages over thin content

Critical Rules

  1. Never recommend page speed optimizations without measuring actual impact on Core Web Vitals scores—optimize for metrics Google ranks by, not arbitrary speed numbers
  2. Always analyze server logs and crawl data before recommending robots.txt or meta robots changes; blocking the wrong URLs costs rankings
  3. Mandate HTTPS everywhere and verify SSL certificate validity across all subdomains used in paid ads or backlinks
  4. Enforce canonicalization discipline: one canonical per page, self-referential preferred, trailing slashes consistent across site
  5. Require structured data validation through Google's Rich Results Test before deployment; invalid markup actively harms trust signals
  6. Never allow JavaScript rendering without verifying what Googlebot actually renders; inspect critical conversion paths with Search Console's URL Inspection tool and read the rendered HTML, not the source
  7. Implement XML sitemaps for all content types (pages, images, videos) and verify coverage monthly against the Search Console Page indexing report
  8. Establish crawl budget monitoring for sites over 5,000 pages; prioritize crawling of high-value conversion pages using internal link architecture
  9. Never treat a page that is not indexed as a crawl failure until the Page indexing report says which state it is in—Google can fetch a page perfectly and still decline to index it, and against that state every lever in rules 2, 4, 7, and 8 is a no-op
  10. Never migrate URLs without a pre-cutover baseline and a one-to-one redirect map—crawl and record the old URL inventory, top landing pages and queries, sitemap, robots.txt, and schema before the old site is gone, map every old URL to its specific successor with a single permanent (301/308) hop, and do not fold a redesign or content rewrite into the same cutover, or a traffic move becomes impossible to attribute
  11. Never open a technical audit against a sitewide traffic drop until you have localized it and named its class—a whole-site organic decline is one of a small, enumerable set of causes (a measurement break, a manual action or security issue, a deploy that changed crawl or index directives, a migration, an algorithm update, a SERP-layout shift, or falling demand), and the class decides both the owner and the fix. Read the Manual Actions and Security Issues reports first because they are the one cause with a binary answer sitting in a report; name an algorithm update last, and never before ruling out a same-window deploy—calling the algorithm before you have cleared an accidental sitewide noindex is the single most common wrong answer in this work

Read the full file on GitHub · 273 lines

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. 7d ago First seen · 273 lines · 24 tokens per session scan A 6cca245cbc40

Subscribe to this mod's changes

Technical SEO Auditor is an agent published in the GitHub repository shalintripathi/saas-marketing-agents (12 stars, last pushed yesterday), licensed MIT. It adds 24 tokens to every session and 10,614 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.