=== Markdown Content Negotiator for LLMs ===
Contributors: kaisercrazy
Donate link: https://github.com/serkanalgur
Tags: markdown, ai, content negotiation, gutenberg, caching, woocommerce
Requires at least: 6.0
Tested up to: 6.9
Requires PHP: 7.3
Stable tag: 1.1.0
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html

Detects Accept: text/markdown and serves pre-generated Markdown versions of posts and pages for AI agents and LLMs.

== Description ==

Markdown Content Negotiator for LLMs is a performance-optimized WordPress plugin designed to serve your website's content in a format that AI agents and LLMs (Large Language Models) love: Clean Markdown.

Using standard HTTP Content Negotiation, the plugin detects when a request is made with the `Accept: text/markdown` header. Instead of serving the standard HTML theme, it returns a Markdown version of the post or page, complete with YAML Frontmatter, token estimation headers, and customizable content signals.

To ensure maximum performance and minimal server load, Markdown versions are pre-generated and cached using WP-Cron.

= Key Features =

*   **Content Negotiation**: Automatically switches to Markdown output when requested via the `Accept: text/markdown` header.
*   **YAML Frontmatter**: Includes metadata like Title, Date, Author, and Categories in a structured format.
*   **Performance Tracking**: Provides an `X-Markdown-Tokens` header using standard LLM token heuristics.
*   **AI Metadata**: Includes `X-Content-Signal` headers to help agents understand the nature of the document.
*   **Background Caching**: Uses WP-Cron to pre-calculate Markdown strings, ensuring zero latency during requests.
*   **Admin Settings**: Choose which post types to enable and configure global AI content signals.

== Installation ==

1. Upload the `markdown-content-negotiator-for-llms` folder to the `/wp-content/plugins/` directory.
2. Activate the plugin through the 'Plugins' menu in WordPress.
3. Configure your preferences under 'Settings > AI Markdown'.

== Frequently Asked Questions ==

= How do I test the Markdown output? =

You can test it using a tool like cURL:

`curl -H "Accept: text/markdown" https://your-site.com/post-slug/`

= How are tokens calculated? =

We use a standard heuristic of ~4 characters per token to provide an estimate in the `X-Markdown-Tokens` header.

== Screenshots ==

1. The AI Markdown settings page.

== Changelog ==

= 1.1.0 =
* Added WooCommerce Product support.
* Added Elementor content rendering support.
* Improved WooCommerce product data extraction (dimensions, weight, price with currency).
* Moved product templates to internal code-based generation.
* Fixed Markdown output escaping issues.

= 1.0.9 =
* Misspelling fix

= 1.0.7 =
* Refactor avoid trademark of 'WP'

= 1.0.5 = 
* Name Change & Refactor plugin

= 1.0.4 =
* Security: Implemented Late Escaping for all echoed variables and generated data.
* Security: Added nonces and strict data sanitization for admin settings.
* Standards: Full compliance with WordPress PHP Coding Standards (WPCS).
* Refactor: Added complete Docblock documentation and standardized all hook callbacks.

= 1.0.3 =
* Ability to generate markdown when post changes.

= 1.0.2 = 
* Featured Image support
* Description creation

= 1.0.1 = 
* Code Block Conversion Support (pre and code)

= 1.0.0 =
* Initial release.