Markdown Content Negotiator for LLMs vs Markdown for Agents and Statistics

Markdown for Agents and Statistics converts your WordPress content to Markdown and serves it to AI agents and language model tools that request it via HTTP content negotiation (Accept: text/markdown). The Chancery Lane Project is a charity that helps organisations reduce emissions using the power of legal documents and processes. We’ve published this plugin as we believe that making content more legible for AI Agents makes a meaningful difference to their energy usage – not only by reducing the amount of tokens required (by up to 90% over HTML) to consume the content, but also minimising the server resources required to render, process and display pages at source. How it works: Posts and taxonomy archive pages are converted to Markdown and saved as static files on disk inside wp-content/uploads/. When a visitor (or AI agent) requests a page with Accept: text/markdown in the HTTP headers, WordPress serves the pre-generated .md file directly — no page render required. A tag is added to each page’s so agents can discover Markdown versions automatically. Features: Content negotiation (Accept: text/markdown, ?output_format=md, or known AI User-Agents) Taxonomy archive support — category, tag, and custom taxonomy term pages served as Markdown post listings Automatic Markdown generation on post save; taxonomy archives auto-update when any post in the term changes AJAX bulk generation with live progress counter — no page timeouts on large sites Per-post-type field configuration — choose which meta/ACF fields go in frontmatter or body ACF support with dot notation for nested group fields (e.g. group.subfield) Content fields option — use ACF fields as the body content instead of post_content Manifest generation with content hashes and change tracking per post type Incremental export — only re-export changed documents (--incremental) Delta file (changes.json) for RAG system sync Access statistics — logs AI agent requests with a dedicated stats admin page Access grouping by class of agent Optional frontmatter fields — hierarchy (parent/ancestors/children IDs), author display name, root-relative featured image paths Topics section — appends a ## Topics section with linked taxonomy terms to the Markdown body Export preview — preview generated Markdown inline in the post editor without writing to disk WP-CLI commands: generate, generate-taxonomies, prune-stats, status, delete Fully unit-tested

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.