Official MCP RegistryListed

HTML Email Playbook

Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail. 19 rules, 6 comps.

First seen 2 Oct 2026. Evidence as of 9 Oct 2026.

Tools

From an anonymous probe

Source listings

Each with its own history

Recorded changes

Since first seen

Tools

Tool	Description	Behaviour
get_component	Return the full record for a single component: title, description, narrative body, the primary HTML pattern, list of slots (placeholders the model should fill), VML/responsive flags, and all code examples. Use after list_components to fetch the actual HTML pattern to paste into an email.	Not declared
get_playbook_rules	Return the full rule pages for a given category. Each rule includes the title, description, markdown body explaining the rule, and any HTML/CSS code examples from the playbook. Use this to teach a model the exact patterns for a specific concern (e.g., responsive layout).	Not declared
list_categories	List all rule categories in the Email Playbook with a one-line description and page count. Categories are: structure (head/body container/header/body/footer), compatibility (Outlook MSO, RTL, responsive), production (Gmail clipping, dark mode, preheader, bulletproof buttons), ai-generation (constraints for AI emitters). For reusable components, use list_components instead — they live in a separate dimension and are not returned by get_playbook_rules.	Not declared
list_components	List all reusable email components in the playbook with their metadata: name, subcategory (layout/media/interactive/text), description, whether they require Outlook VML, and whether they are responsive. Use this first to discover what components exist before calling get_component.	Not declared

No changes since the first observation. The first snapshot is the baseline.

Source listings
Source	Listing	First seen	Last seen	Versions
Official MCP Registry	io.github.OsamaHassouna/email-playbook-mcp	2 Oct 2026	9 Oct 2026	1