add overview table

Author: ethanpalm

ai/agent-readiness-checks.mdx

@@ -14,6 +14,20 @@ For example, if your site has no `llms.txt` file, none of the checks that evalua
 
 Focus on passing parent checks first to make the biggest improvements to how accessible your documentation is to agents.
 
+| Category | What it checks | Weight |
+| --- | --- | --- |
+| llms.txt | Does an `/llms.txt` file exist, follow the spec, and link to Markdown versions of pages? | 17 |
+| llms-full.txt | Is there a bundled, well-structured corpus agents can ingest in one request? | 8 |
+| skill.md | Does the site expose agent skills? | 8 |
+| Markdown content negotiation | Can the server return clean markdown when an agent asks for it? | 10 |
+| Plaintext content negotiation | Can the server return clean plaintext as a fallback? | 5 |
+| MCP server | Is there a discoverable MCP server? Does it expose tools? | 20 |
+| OpenAPI spec | Is there a machine-readable API specification at a standard path? | 12 |
+| robots.txt allows AI agents | Does `robots.txt` allow AI crawlers? | 8 |
+| Sitemap | Is there a discoverable, valid `sitemap.xml`? | 5 |
+| Structured data | Does the homepage embed JSON-LD? | 4 |
+| Response latency | Does the site respond in less than two seconds? | 3 |
+
 <Tip>
   Every check includes a ready-to-use prompt for improving your documentation and passing the check and any dependent checks.