docs: add description front matter to documentation pages (#1566)

docs/_STYLE_GUIDE.md

@@ -1,5 +1,6 @@
 ---
 title: "Documentation Style Guide"
+description: Project-specific documentation conventions based on Google style and Diataxis structure
 ---
 
 This project adheres to the [Google Developer Documentation Style Guide](https://developers.google.com/style) and uses [Diataxis](https://diataxis.fr/) to structure content. Only project-specific conventions follow.

docs/bmgd/game-types.md

@@ -1,5 +1,6 @@
 ---
 title: "Game Types Reference"
+description: 24 game type templates with genre-specific GDD sections for BMGD
 draft: true
 ---
 

docs/bmgd/quick-flow-workflows.md

@@ -1,5 +1,6 @@
 ---
 title: "Quick Flow Workflows"
+description: Create tech specs and execute implementations with BMGD Quick Flow
 draft: true
 ---
 

docs/how-to/customize-bmad.md

@@ -1,5 +1,6 @@
 ---
 title: "BMad Method Customization Guide"
+description: Customize agents, workflows, and modules while preserving update compatibility
 ---
 
 The ability to customize the BMad Method and its core to your needs, while still being able to get updates and enhancements is a critical idea within the BMad Ecosystem.

docs/how-to/shard-large-documents.md

@@ -1,5 +1,6 @@
 ---
 title: "Document Sharding Guide"
+description: Split large markdown files into smaller organized files for better context management
 ---
 
 Use the `shard-doc` tool if you need to split large markdown files into smaller, organized files for better context management.

docs/index.md

@@ -1,5 +1,6 @@
 ---
 title: Welcome to the BMad Method
+description: AI-driven development framework with specialized agents, guided workflows, and intelligent planning
 ---
 
 The BMad Method (**B**reakthrough **M**ethod of **A**gile AI **D**riven Development) is an AI-driven development framework that helps you build software through the whole process from ideation and planning all the way through agentic implementation. It provides specialized AI agents, guided workflows, and intelligent planning that adapts to your project's complexity, whether you're fixing a bug or building an enterprise platform.

docs/reference/agents.md

@@ -1,5 +1,6 @@
 ---
 title: Agents
+description: Default BMM agents with their menu triggers and primary workflows
 ---
 
 This page lists the default BMM (Agile suite) agents that install with BMAD Method, along with their menu triggers and primary workflows.

docs/reference/modules.md

@@ -1,5 +1,6 @@
 ---
 title: Official Modules
+description: Add-on modules for building custom agents, creative intelligence, game development, and testing
 ---
 
 BMad extends through official modules that you select during installation. These add-on modules provide specialized agents, workflows, and tasks for specific domains beyond the built-in core and BMM (Agile suite).

docs/reference/testing.md

@@ -1,5 +1,6 @@
 ---
 title: Testing Options
+description: Built-in QA agent and the standalone Test Architect module for advanced testing
 ---
 
 # Testing Options