AI agents don’t browse the web the way humans do. They request structured data, negotiate content formats, and look for standardised discovery endpoints. SM Agent Kit adds all of this to any WordPress site automatically, with a clean admin UI and zero hardcoding.
Markdown negotiation
When an agent sends a request with Accept: text/markdown, your site returns the post or page as clean markdown instead of HTML, with a Content-Type: text/markdown header and x-markdown-tokens: 1. Human visitors never notice a thing.
llms.txt
Serves a plain-text /llms.txt file per the llmstxt.org convention, listing your key endpoints, recent posts, and pages for LLMs that read this file directly instead of crawling.
Content signals and per-agent crawl rules
Adds a Content-Signal directive to your robots.txt declaring your preferences for AI training, search indexing, and agent input, per the emerging Content Signals standard. You can also set individual Allow or Disallow rules for named AI crawlers such as GPTBot, ClaudeBot, and PerplexityBot.
Well-known endpoints
Serves auto-generated JSON files that agent frameworks and crawlers look for:
- /.well-known/api-catalog – lists your REST API and sitemap endpoints (RFC 9727)
- /.well-known/mcp/server-card.json – declares MCP server capabilities (SEP-1649)
- /.well-known/agent-skills/index.json – lists what your site can do as an agent-callable service
- /.well-known/agentic-commerce/product-feed.json – read-only product feed for agent shopping tools, built from WooCommerce data
- /.well-known/openapi.json – an OpenAPI 3.1 description of your core REST endpoints for agent frameworks that do tool discovery
- /.well-known/agent-policy.json – a machine-readable usage policy covering summarizing, quoting, indexing, training, and transacting
All endpoints build dynamically from your WordPress data including site name, tagline, registered post types, REST API root, and product catalog with no hardcoding required. Install on multiple sites and each one generates correct, site-specific output automatically.
Agent metadata (JSON-LD)
Optionally injects a WebSite and Organization JSON-LD block into every page’s head, giving AI search tools and agents structured entity and contact information alongside your existing SEO plugin’s output.
Diagnostics
A built-in “Test all endpoints” button in the admin UI checks every well-known endpoint from the server and reports whether each one responds correctly, so you get immediate feedback after saving settings and flushing permalinks.
Agentic commerce
If WooCommerce is active, SM Agent Kit can publish a read-only feed of your published products: name, price, currency, availability, SKU, and URL. This makes your catalog discoverable to AI shopping agents without exposing any checkout or payment functionality. If WooCommerce is not installed, this section is automatically marked as not applicable.
The plugin also publishes UCP and ACP protocol manifests declaring your commerce capabilities to AI shopping agents, and a stubbed checkout endpoint that responds clearly when checkout is not available. No payment processing is implemented in this plugin. Live agent checkout requires a separate payment provider integration.
Settings UI
SM Agent Kit adds its own item to the WordPress admin sidebar. Every feature is togglable. Tooltips explain each field. A permalink reminder appears after every save so you never miss the rewrite flush.
Standards
- Markdown content negotiation: Accept: text/markdown and Content-Type: text/markdown
- Content Signals: contentsignals.org
- API Catalog: RFC 9727
- MCP Server Card: SEP-1649
- Agent Skills Discovery RFC v0.2.0