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.

Selvakumar Duraipandian

Markdown for AI Agents is a lightweight WordPress plugin that enables HTTP content negotiation for your site’s content. When a client (like an AI agent or a custom script) requests a page with the <code>Accept: text/markdown</code> header, the plugin intercepts the request and returns a clean, structured Markdown representation of the post or page content.
This is ideal for AI crawlers, RAG (Retrieval-Augmented Generation) systems, and non-browser clients that prefer machine-friendly text over complex HTML.
Important note: This plugin is primarily a developer/integration tool. Human visitors browsing your site will never see any difference — the Markdown output is only served when explicitly requested via the <code>Accept: text/markdown</code> HTTP header. Normal browser requests always receive the standard HTML page.
Key Features:
<ul>
<li>Automatically detects <code>Accept: text/markdown</code> headers.</li>
<li>Converts HTML content to clean Markdown using the League HTMLToMarkdown library.</li>
<li>Strips away theme layout, navigation, headers, footers, and sidebars — serving only the main content.</li>
<li>Adds useful HTTP response headers: <code>Content-Type: text/markdown</code>, <code>Vary: Accept</code>, and <code>X-Markdown-Word-Count</code>.</li>
<li>Respects WordPress visibility rules and filters.</li>
<li>No configuration required — works out of the box for posts, pages, and custom post types.</li>
</ul>
<h3>How It Works</h3>
This plugin uses a standard web technique called HTTP content negotiation. The same URL on your site can serve different representations of the same content depending on what the client asks for:
<ul>
<li>A regular browser sends <code>Accept: text/html</code> → receives your normal HTML page.</li>
<li>An AI agent sends <code>Accept: text/markdown</code> → receives a clean Markdown version of the same page.</li>
</ul>
No extra URLs, no duplicate content, no configuration needed. The plugin hooks into WordPress’s <code>template_redirect</code> action, detects the <code>Accept</code> header, captures the rendered HTML, converts it to Markdown, and returns it with appropriate headers.
<h3>Why Markdown for AI Agents?</h3>
When building RAG (Retrieval-Augmented Generation) applications or AI pipelines that ingest web content, HTML is extremely noisy. A typical WordPress page contains thousands of tokens worth of HTML tags, inline styles, navigation menus, scripts, and layout markup — none of which carries meaning for an AI model.
Serving clean Markdown instead can reduce token consumption by up to 60%, which means:
<ul>
<li>Lower API costs — fewer tokens ingested when loading pages into vector stores or LLM pipelines.</li>
<li>Faster processing — less text for the model to parse, filter, and discard.</li>
<li>Better retrieval accuracy — higher signal-to-noise ratio improves the quality of RAG results.</li>
<li>Simpler pipelines — no need for custom HTML stripping logic on the client side; the plugin handles it server-side.</li>
</ul>
Any AI agent, crawler, or ingestion script that sends <code>Accept: text/markdown</code> in its request header will automatically receive the clean Markdown version — no extra URLs, no separate endpoints, no changes to your content workflow.

Markdown for AI Agents

Serve clean Markdown versions of WordPress content to AI agents using HTTP content negotiation.

LLM Override vs Markdown for AI Agents