list_categories

Active

declared in 0.6.3

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.

Parameters schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

What this tool wraps· 2 endpoints

min confidence0.70 0.50

Data resourceGmail API
Google · messaging
name mention0.75
Data resourceMicrosoft Graph
Microsoft · productivity
name mention0.60

Parent server

HTML Email Playbook

https://github.com/OsamaHassouna/docs-hub

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