librecrawl-technical-seo-audit-mcp: Skill for Claude Code

.claude/skills/librecrawl-audit/SKILL.md

librecrawl-audit is a skill for Claude Code from adityaarsharma/librecrawl-technical-seo-audit-mcp. It costs 143 tokens per session (2,969 once invoked), scanned A, original, MIT.

A technical search-engine optimization audit for a website, using a crawler to inspect pages and site structure. It checks issues such as broken links, missing page metadata, headings, canonical URLs, structured data, sitemaps, and performance-related signals.

In plain words
What is it for?
Use it to crawl a website, find SEO and link problems, validate structured data and sitemaps, check metadata and headings, and save the resulting audit archive locally.
Why use it?
It replaces a manual page-by-page inspection with a structured site health report. It helps reveal problems that can make pages harder for search engines to understand or users to reach.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is adityaarsharma/librecrawl-technical-seo-audit-mcp's own configuration. It tells Claude Code how to work on librecrawl-technical-seo-audit-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything librecrawl-technical-seo-audit-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to adityaarsharma/librecrawl-technical-seo-audit-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/adityaarsharma/librecrawl-technical-seo-audit-mcp/main/.claude/skills/librecrawl-audit/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/adityaarsharma/librecrawl-technical-seo-audit-mcp

Made for: Claude Code.

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 librecrawl-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/adityaarsharma/librecrawl-technical-seo-audit-mcp/librecrawl-audit/github.svg)](https://agentmods.dev/skills/adityaarsharma/librecrawl-technical-seo-audit-mcp/librecrawl-audit)
Your own site
<a href="https://agentmods.dev/skills/adityaarsharma/librecrawl-technical-seo-audit-mcp/librecrawl-audit"><img src="https://agentmods.dev/badge/skills/adityaarsharma/librecrawl-technical-seo-audit-mcp/librecrawl-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 librecrawl-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/adityaarsharma/librecrawl-technical-seo-audit-mcp/librecrawl-audit"><img src="https://agentmods.dev/badge/skills/adityaarsharma/librecrawl-technical-seo-audit-mcp/librecrawl-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 143 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,969 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00143 $0.02969
Opus 5 $0.00072 $0.01484
Sonnet 5 $0.00029 $0.00594
Haiku 4.5 $0.00014 $0.00297

Measured 12d ago against content hash d713781b2190, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

librecrawl-audit 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 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.

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.

.claude/skills/librecrawl-audit/SKILL.md · 242 lines

How it starts

The opening of the file, as written. The whole thing — 242 lines — stays where its author put it; the contents beside it link to each section on GitHub.

⚠️ MANDATORY RULES — read first, no exceptions

These are hard rules. If you skip any of them, the audit is broken from the user's perspective even if the MCP call succeeded.

Rule 1: ALWAYS save the zip locally

After librecrawl_audit_zip returns, you MUST decode the content_base64 and write it to a local file on the operator's machine. Use the user's current working directory (or ~/Downloads/<filename>). Use exactly the filename field from the response.

Pseudo-code your runtime should execute:

import base64
local_path = filename   # use the filename field from the response, e.g. "example.com-1780572742.zip"
with open(local_path, "wb") as f:
    f.write(base64.b64decode(content_base64))

You report the LOCAL path back to the user. NEVER report the zip_path field from the response as the deliverable — that path is on the remote server, not on the operator's local machine. The user cannot open it.

Rule 2: ALWAYS use auto_cleanup=True

Default and only sane choice. The user contract is: server forgets the audit the moment they have the zip. Do NOT pass auto_cleanup=False — it leaves audit data sitting on the remote server. If a user explicitly says "keep the data on the server", confirm twice and only then opt out.

Rule 3: After saving, verify + tell the user the LOCAL path

Pattern your final response on this:

✅ Audit done. Saved locally: ./example.com-1780572742.zip (320 KB · sha256 verified) Contents: SUMMARY.txt + PDF report + 7 CSVs (per-page · sitemap-recon · external-links · content-audit · extended-checks). Server forgot the session — it's not stored anywhere remote.

Do not say:

❌ "Zip created: /home//librecrawl-reports/example.com-XXXX.zip"

That path is on the server. Useless to the user.


librecrawl-audit

Drive the librecrawl-technical-seo-audit-mcp MCP server to produce a complete technical SEO audit of any website. The MCP exposes 37 tools at mcp__librecrawl-posi__* (or whatever the local connector name is in the user's config).

Read the full file on GitHub · 242 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. 12d ago First seen · 242 lines · 143 tokens per session scan A d713781b2190

Subscribe to this mod's changes

librecrawl-audit is a skill published in the GitHub repository adityaarsharma/librecrawl-technical-seo-audit-mcp (39 stars, last pushed 1mo ago), licensed MIT. It adds 143 tokens to every session and 2,969 once invoked, about $0.0007 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 2026-08-30.

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