Fran Barbero

The AI era has a problem: ChatGPT, Claude, and Perplexity are making up facts about your brand.
They crawl your raw HTML — a format built for humans — and hallucinate the gaps. Traditional SEO 
cannot fix this. A static sitemap cannot fix this. LLM Override fixes this.
LLM Override is a Machine-to-Machine (M2M) interception engine for WordPress. It speaks the 
language AI crawlers actually understand: clean, structured Markdown with semantic context — served 
in real time, directly from your site, without modifying a single page.
<h3>How AI systems read your content</h3>
Most AI tools for WordPress generate a list of URLs. That tells an AI crawler where your content 
is. LLM Override tells AI crawlers what your content means — making your brand accurately 
represented across AI-powered search engines.
When a bot visits your page, LLM Override intercepts the request before WordPress renders any HTML, 
and responds with a structured Markdown payload containing:
<ul>
<li>Your content, cleaned of scripts, ads, and UI noise</li>
<li>A YAML frontmatter block with your canonical title, URL, and last-updated timestamp</li>
<li>Your Site Manifest — verifiable organization facts included in your /llms.txt</li>
</ul>
This is Generative Engine Optimization (GEO): making your content accessible and accurately represented to AI systems.
<h3>How it works</h3>
<ol>
<li>LLM Override adds a <code><link rel="alternate" type="text/markdown"></code> tag into your page <code><head></code>.</li>
<li>An AI crawler discovers this link and follows it — that’s the standard Content Negotiation protocol.</li>
<li>It appends <code>?view=raw</code> to your URL and sends the request.</li>
<li>LLM Override intercepts at the WordPress routing layer — no HTML is rendered, no theme loads.</li>
<li>The crawler receives clean, semantic Markdown. Accurate content. No hallucinations.</li>
</ol>
Your human visitors never see any of this. Their experience is unchanged.
<h3>Core Features (Free)</h3>
M2M Interception Engine 
✅ Intercepts AI bot requests via <code>?view=raw</code> — works on any page, any post type 
✅ Converts HTML to clean Markdown using <code>league/html-to-markdown</code> 
✅ Strips <code><script></code>, <code><style></code>, <code><iframe></code>, and empty elements before conversion 
✅ Disables page caching (WP Rocket, LiteSpeed, W3TC, Cloudflare) for M2M requests to guarantee fresh content 
✅ Adds <code>X-Robots-Tag: noindex</code> to Markdown responses to prevent duplicate content flags 
✅ Adds <code>X-Content-Processing</code> transparency header declaring conversion method and source 
✅ Adds YAML frontmatter: title, canonical URL, last modified date, plugin version
Content Rules 
✅ Site Manifest — provide verifiable organization facts in your /llms.txt site manifest
llms.txt Standard Compliance 
✅ Dynamic <code>/llms.txt</code> endpoint — always current, zero static files, works on any hosting 
✅ Extended <code>/llms-full.txt</code> endpoint — includes content snippets for deeper AI context 
✅ Semantic Blockquote — select a global context page via UI to auto-generate the site manifest 
✅ Link Grouping — automatically categorizes links by post type (Pages, Optional, etc.) per llmstxt.org specs 
✅ Both endpoints automatically respect <code>noindex</code> rules from Yoast SEO, Rank Math, SEOPress, and AIOSEO 
✅ Announces <code>/llms.txt</code> in your <code>robots.txt</code> for passive bot discovery 
✅ <code><link rel="alternate" type="text/markdown"></code> auto-injected into every page <code><head></code>
Precision Control 
✅ Native WordPress metabox on every post/page: exclude from AI manifests or override the M2M payload manually 
✅ “View as AI” button in the WordPress Admin Bar: see exactly what any AI bot receives from any page
Shadow Analytics Lite 
✅ Tracks global M2M interception hits with a simple counter in your dashboard 
✅ GDPR-compliant: IP addresses are hashed daily, never stored in plain text 
✅ Detects 58 known AI bots across 4 categories (Training, Query, Discovery, Scraping)
Enterprise Sanitization 
✅ Strips Unicode corruption before delivery: BOM markers, Zero-Width Spaces, Non-Breaking Spaces, Soft Hyphens — the exact characters that cause parser errors in ChatGPT and Claude 
✅ Transient-based caching (12-hour TTL) for endpoint performance — with one-click AJAX flush
Developer API 
✅ 14 documented action/filter hooks for extending behavior without modifying plugin files 
✅ Clean OOP architecture with full Composer autoloading
<h3>Built to WordPress standards</h3>
LLM Override is developed following strict WordPress coding standards. Every function prefixed, 
every output escaped, every database query prepared, every nonce verified. No direct filesystem 
operations. No raw SQL injection. No short PHP tags.
The plugin passes the official WordPress Plugin Check tool with zero errors and zero warnings.
<h3>LLM Override Pro — Industrial-scale GEO</h3>
The free version covers the complete core M2M engine. Large sites and agencies need scale.
Pro unlocks: 
* 🤖 AI Copilot — per-post AI-generated Markdown with custom personas (GPT, Claude, DeepSeek, OpenRouter via BYOK) 
* ⚙️ Batch Accelerator — compile your entire site in the background via Action Scheduler, no timeouts 
* 📊 Full GEO Analytics — granular telemetry: which bots, which pages, which entities were injected 
* 🔬 Autopilot llms.txt — AI-drafted manifesto grounded in your actual content 
* 🏢 Agency MCP Server — expose a full Model Context Protocol endpoint for external agent orchestration
<a href="https://llmoverride.com" rel="nofollow ugc">Explore Pro features →</a>
<h3>GEO Compliance</h3>
LLM Override follows the principle of Content Faithfulness: everything served to 
AI bots is a faithful representation of your visible web content, optimized for 
machine consumption but never altered in substance.
<ul>
<li>Content is converted from HTML to Markdown without semantic changes</li>
<li>No content is added or removed from individual page responses</li>
<li>Structured data (JSON-LD) is extracted directly from visible page content</li>
<li>Full transparency via X-Content-Processing HTTP headers</li>
<li>Content Faithfulness Score tracks parity between HTML and Markdown outputs</li>
</ul>

LLM Override

Make your content accessible and accurate for AI systems. The compliance-first GEO optimization toolkit for WordPress.

Mescio

Mescio for Agents makes your WordPress site AI-ready by silently serving posts, pages and WooCommerce products as clean, structured Markdown to any AI agent or LLM pipeline that requests it — using the standard HTTP <code>Accept: text/markdown</code> content negotiation header.
Human visitors using a browser are completely unaffected. Mescio for Agents only activates when an AI agent or crawler explicitly asks for Markdown.
<h4>Why Markdown?</h4>
Feeding raw HTML to an AI is expensive and noisy. A heading like <code>## About Us</code> costs ~3 tokens in Markdown vs 12–15 tokens as HTML — before accounting for <code><div></code> wrappers, navigation bars and script tags that carry zero semantic value. This blog post you are reading takes 16,180 tokens in HTML and 3,150 tokens in Markdown. That is an 80% reduction.
Markdown has become the lingua franca for AI systems. Mescio for Agents lets your site speak it natively, at zero cost to your human visitors.
<h4>How it works</h4>
When an HTTP client sends a request with <code>Accept: text/markdown</code>, Mescio for Agents intercepts the WordPress request lifecycle before any template is rendered, converts the post content to clean Markdown, and returns it with the correct <code>Content-Type: text/markdown</code> header.
<pre><code>curl https://yoursite.com/your-post/ \
 -H "Accept: text/markdown"
</code></pre>
<h4>Features</h4>
<ul>
<li>Zero configuration — works out of the box on any singular post, page or custom post type</li>
<li><code>/llms.txt</code> endpoint — auto-generated index of all your content in the <a href="https://llmstxt.org" rel="nofollow ugc">llmstxt.org</a> standard format, so AI agents can discover what’s on your site</li>
<li><code>/llms-full.txt</code> endpoint — full site content in a single Markdown file, ready for RAG pipelines</li>
<li>WooCommerce support — product pages include price, SKU, stock status, rating, attributes and gallery; products are grouped by category in <code>llms.txt</code></li>
<li>YAML front matter — every document includes structured metadata (title, description, URL, date, categories, tags, featured image)</li>
<li>Multilingual — detects language via WPML, Polylang, TranslatePress or WordPress locale; emits <code>Content-Language</code> and <code>Link: rel=alternate</code> headers</li>
<li>REST API endpoint — <code>/wp-json/mescio-for-agents/v1/markdown?id=<post_id></code> or <code>?url=<permalink></code></li>
<li>Page builder cleanup — aggressively strips Elementor, Divi, WPBakery and Beaver Builder layout noise</li>
<li>Token count header — <code>X-Markdown-Tokens</code> tells AI pipelines how large the document is before processing</li>
<li>Content Signals — emits <code>Content-Signal: ai-train=yes, search=yes, ai-input=yes</code></li>
<li>Correct HTTP caching — <code>Vary: Accept</code> ensures CDNs cache HTML and Markdown versions separately</li>
</ul>
<h4>Response headers</h4>
<ul>
<li><code>Content-Type: text/markdown; charset=utf-8</code></li>
<li><code>Content-Language: it</code> (or detected language)</li>
<li><code>Vary: Accept</code></li>
<li><code>X-Markdown-Tokens: 725</code></li>
<li><code>Content-Signal: ai-train=yes, search=yes, ai-input=yes</code></li>
<li><code>Link: <url>; rel="alternate"; hreflang="en"</code> (when translations available)</li>
</ul>
<h4>Multilingual plugin support</h4>
<ul>
<li>WPML — reads language and available translations automatically</li>
<li>Polylang — reads language and links to translated post IDs</li>
<li>TranslatePress — reads <code>trp_language</code> post meta</li>
<li>Manual — configure primary language and additional languages in Settings → Mescio for Agents</li>
</ul>
<h4>REST API</h4>
<pre><code>GET /wp-json/mescio-for-agents/v1/markdown?id=42
GET /wp-json/mescio-for-agents/v1/markdown?url=https://yoursite.com/my-page/
</code></pre>
<h4>Developer hooks</h4>
Filter: <code>mescio_enabled_post_types</code> — add or remove post types dynamically.
Filter: <code>mescio_pre_convert_content</code> — modify the HTML before conversion to Markdown.
Filter: <code>mescio_post_convert_content</code> — modify the Markdown after conversion.
<h4>Privacy</h4>
This plugin does not collect, store or transmit any personal data. It does not set cookies. It does not make external HTTP requests.

Mescio for Agents

Mescio for Agents serves your WordPress content as clean Markdown to AI agents and GPT crawlers. Human visitors never notice a thing.

LLM Override vs Mescio for Agents