Rich Tabor

<h3>Comments that only render in the block editor</h3>
<p>I honestly enjoy drafting articles either locally in Ulysses, or on <a href="https://richtabor.com" rel="nofollow ugc">my blog</a> using the <a href="https://useiceberg.com/?utm_source=wp-org&utm_medium=markdown-comment-block&utm_campaign=readme-description" rel="nofollow ugc">Iceberg Editor</a>. While I do love Iceberg, once I publish an article I typically bring back the default Gutenberg experience — thus removing any comments I previously added.</p>
<p>Having the ability to add, and keep, any relevant editing comments within my posts, without rendering them on the front-end, means that I am freed up to mentally jot any idea down without thinking about it. It is simply natural and convenient.</p>
<p><a href="https://richtabor.com/markdown-comments/?utm_source=wp-org&utm_medium=markdown-comment-block&utm_campaign=readme-learnmore" rel="nofollow ugc">Learn more about Markdown Comment →</a></p>
<h3>What’s interesting about Markdown Comment:</h3>
<h4>1. Editor only</h4>
<p>The block only renders within the editor. For developers reading this, that means there’s no save function. I don’t want my unfinished ideas, reminders, and notes rendered within my post – even if they’re hidden by CSS.</p>
<h4>2. Helpful block transforms</h4>
<p>I added a couple transforms, to and from headings and paragraphs, and a raw shortcut when you type <code>%%</code> and hit the [space] key. This lets me quickly add comments, and even convert whole paragraphs or headings to a comment.</p>
<h4>3. Easily resolve comments</h4>
<p>To support that path towards simplicity, I wanted a method to quickly resolve — i.e. banish — a comment entirely. So, I added a toolbar control to quickly resolve the comment, removing the block entirely.</p>
<h4>4. No rich text support</h4>
<p>Comments need to have minimal impact on editing, and feel as natural as possible. That’s why there are no typical RichText controls (although you can still bold, italicize and add hyperlinks). And while you <em>can</em> change the color of the comment — there are no other typographic controls.</p>
<h4>5. Entirely CSS Variable ready</h4>
<p>Global styles and full site editing are opening the door for themes to be heavily powered by CSS variables. Blocks should be designed with that same mentality, which is exactly what I did here. I added simple CSS variables with fallbacks that are the default values. To further theme the comment, there’s no need to override any styles with classes, just write a few CSS variables.</p>


Markdown Comment Block

Add markdown inspired comments to posts that render only within the block editor.

Selvakumar Duraipandian

<p>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.</p>
<p>This is ideal for AI crawlers, RAG (Retrieval-Augmented Generation) systems, and non-browser clients that prefer machine-friendly text over complex HTML.</p>
<p><strong>Important note:</strong> 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.</p>
<p><strong>Key Features:</strong></p>
<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>
<p>This plugin uses a standard web technique called <strong>HTTP content negotiation</strong>. The same URL on your site can serve different representations of the same content depending on what the client asks for:</p>
<ul>
<li>A regular browser sends <code>Accept: text/html</code> <span aria-hidden="true" class="wp-exclude-emoji">→</span> receives your normal HTML page.</li>
<li>An AI agent sends <code>Accept: text/markdown</code> <span aria-hidden="true" class="wp-exclude-emoji">→</span> receives a clean Markdown version of the same page.</li>
</ul>
<p>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.</p>
<h3>Why Markdown for AI Agents?</h3>
<p>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.</p>
<p>Serving clean Markdown instead can reduce token consumption by up to 60%, which means:</p>
<ul>
<li><strong>Lower API costs</strong> — fewer tokens ingested when loading pages into vector stores or LLM pipelines.</li>
<li><strong>Faster processing</strong> — less text for the model to parse, filter, and discard.</li>
<li><strong>Better retrieval accuracy</strong> — higher signal-to-noise ratio improves the quality of RAG results.</li>
<li><strong>Simpler pipelines</strong> — no need for custom HTML stripping logic on the client side; the plugin handles it server-side.</li>
</ul>
<p>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.</p>


Markdown for AI Agents

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

Markdown Comment Block vs Markdown for AI Agents