feat: add plugin integration analysis to config-analyze command

Add automatic detection of active marketplace plugins and verification
that CLAUDE.md properly references them. This ensures projects using
marketplace plugins will have proper documentation to guide Claude Code
in using available tools.

Changes:
- Add claude-md-integration.md snippets to all 4 plugins (projman,
  cmdb-assistant, claude-config-maintainer, project-hygiene)
- Update marketplace.json with MCP server mappings for plugin detection
- Enhance /config-analyze to detect active plugins via MCP server names
- Update maintainer agent with plugin integration workflow
- Add plugin coverage percentage to analysis report
- User confirmation required before adding plugin references

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugins/claude-config-maintainer/commands/analyze.md

@@ -1,10 +1,10 @@
 ---
-description: Analyze CLAUDE.md for optimization opportunities
+description: Analyze CLAUDE.md for optimization opportunities and plugin integration
 ---
 
 # Analyze CLAUDE.md
 
-This command analyzes your project's CLAUDE.md file and provides a detailed report on optimization opportunities.
+This command analyzes your project's CLAUDE.md file and provides a detailed report on optimization opportunities and plugin integration status.
 
 ## What This Command Does
 
@@ -12,7 +12,9 @@ This command analyzes your project's CLAUDE.md file and provides a detailed repo
 2. **Analyze Structure** - Evaluates organization, headers, and flow
 3. **Check Content** - Reviews clarity, completeness, and conciseness
 4. **Identify Issues** - Finds redundancy, verbosity, and missing sections
-5. **Generate Report** - Provides scored assessment with recommendations
+5. **Detect Active Plugins** - Identifies marketplace plugins enabled in the project
+6. **Check Plugin Integration** - Verifies CLAUDE.md references active plugins
+7. **Generate Report** - Provides scored assessment with recommendations
 
 ## Usage
 
@@ -52,6 +54,29 @@ Analyze the CLAUDE.md file in this project
 - Appropriate length for project size
 - No generic filler content
 
+## Plugin Integration Analysis
+
+After the content analysis, the command detects and analyzes marketplace plugin integration:
+
+### Detection Method
+
+1. **Read `.claude/settings.local.json`** - Check for enabled MCP servers
+2. **Map MCP servers to plugins** - Use marketplace registry to identify active plugins:
+   - `gitea` → projman
+   - `netbox` → cmdb-assistant
+3. **Check for hooks** - Identify hook-based plugins (project-hygiene)
+4. **Scan CLAUDE.md** - Look for plugin integration content
+
+### Plugin Coverage Scoring
+
+For each detected plugin, verify CLAUDE.md contains:
+- Plugin section header or mention
+- Available commands documentation
+- MCP tools reference (if applicable)
+- Usage guidelines
+
+Coverage is reported as percentage: `(plugins referenced / plugins detected) * 100`
+
 ## Expected Output
 
 ```
@@ -101,10 +126,37 @@ Recommendations:
 
 Estimated improvement: 15-20 points after changes
 
+---
+
+Plugin Integration Analysis
+===========================
+
+Detected Active Plugins:
+  ✓ projman (via gitea MCP server)
+  ✓ cmdb-assistant (via netbox MCP server)
+  ✓ project-hygiene (via PostToolUse hook)
+
+Plugin Coverage: 33% (1/3 plugins referenced)
+
+  ✓ projman - Referenced in CLAUDE.md
+  ✗ cmdb-assistant - NOT referenced
+  ✗ project-hygiene - NOT referenced
+
+Missing Integration Content:
+
+1. cmdb-assistant
+   Add infrastructure management commands and NetBox MCP tools reference.
+
+2. project-hygiene
+   Add cleanup hook documentation and configuration options.
+
+---
+
 Would you like me to:
-[1] Implement all recommended changes
-[2] Show before/after for specific section
-[3] Generate optimized version for review
+[1] Implement all content recommendations
+[2] Add missing plugin integrations to CLAUDE.md
+[3] Do both (recommended)
+[4] Show preview of changes first
 ```
 
 ## When to Use
@@ -115,6 +167,8 @@ Run `/config-analyze` when:
 - Claude seems to miss instructions
 - Before major project changes
 - Periodic maintenance (quarterly)
+- After installing new marketplace plugins
+- When Claude doesn't seem to use available plugin tools
 
 ## Follow-Up Actions