docs: complete Phase 6 - integration testing and documentation

Completed final phase of Schema-of-Schemas implementation with
comprehensive testing and user documentation.

**Integration Testing:**
- All 97 unit tests passing (50 naming + 35 loader + 12 metaschema)
- End-to-end workflow testing:
  * Schema creation and validation
  * Schema ingestion into registry
  * Numbered schema listing
  * Single schema validation (number, filename, path)
  * Batch validation (ranges, lists, --all)
  * Schema deletion and cleanup

**Documentation:**
- Created comprehensive SCHEMA_MANAGEMENT_GUIDE.md
- Quick start guide with templates
- Complete command reference for all schema commands
- Common workflows and use cases
- Best practices and troubleshooting
- Advanced usage patterns
- Future enhancement notes

**Phase Summary:**
- Schema-of-Schemas implementation complete (6 phases)
- Fully functional schema management system
- 97 tests with 100% pass rate
- 4 comprehensive documentation files:
  * SCHEMA_MANAGEMENT_GUIDE.md (usage)
  * SCHEMA_NAMING_SPEC.md (naming conventions)
  * SCHEMA_LOADER_GUIDE.md (markdown schemas)
  * schema-schema-v1.0.md (metaschema reference)

This completes the Schema-of-Schemas implementation, providing a
robust, well-tested, and well-documented schema management system
for MarkiTect.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

CHANGELOG.md

@@ -47,14 +47,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Removed
 - **BREAKING**: Legacy DocumentControls component from TestDrive JSUI plugin system - all control panel functionality now provided by enhanced control panels (ContentsControl, StatusControl, DebugControl, EditControl) with Reset All button functionality moved to EditControl for better maintainability and elimination of code duplication
 
-### In Progress
-- **Schema-of-Schemas Implementation** (Phase 5 of 6 - Completed ✅)
+### Completed Features
+- **Schema-of-Schemas Implementation** (All 6 Phases Complete ✅)
   - ✅ Phase 1: Filename validation for schema naming convention (`markitect/schema_naming.py`, 50 tests)
   - ✅ Phase 2: Markdown schema loader to parse `.md` schema files (`markitect/schema_loader.py`, 35 tests)
   - ✅ Phase 3: Schema-for-schemas metaschema for schema validation (`schema-schema-v1.0.md`, 12 tests)
   - ✅ Phase 4: Migration of 5 existing schemas to new format (migrated 2, deleted 3 duplicates)
   - ✅ Phase 5: CLI enhancements - numbered schema-list, multi-schema validation with selection methods
-  - ⏳ Phase 6: Integration testing and final documentation
+  - ✅ Phase 6: Integration testing and comprehensive documentation (SCHEMA_MANAGEMENT_GUIDE.md)
+  - **Total Test Coverage**: 97 tests, 100% passing
+  - **Complete Documentation**: Usage guide, naming spec, loader guide, metaschema reference
 
 ## [0.9.0] - 2025-11-14
 

TODO.md

@@ -67,10 +67,17 @@ This section is for tasks currently being discussed with or worked on by the cod
 - [x] Test all selection methods (1, 1-3, 1,3,5, all, filename, ./path)
 - [x] Maintain backward compatibility with single-file validation
 
-**Next Phase:**
-- Phase 6: Integration testing and final documentation (1 day)
+**Phase 6 Tasks (Completed ✅):**
+- [x] Run complete test suite - all 97 tests passing (50 naming + 35 loader + 12 metaschema)
+- [x] Perform end-to-end integration testing of complete schema workflow
+- [x] Test schema creation, validation, ingestion, listing, and batch operations
+- [x] Create comprehensive usage documentation (SCHEMA_MANAGEMENT_GUIDE.md)
+- [x] Document all commands, workflows, and best practices
+- [x] Verify no regressions in existing functionality
 
-**Expected Completion:** 1 day remaining
+**Schema-of-Schemas Implementation: COMPLETE ✅**
+
+All 6 phases completed successfully. The schema management system is fully functional with comprehensive testing and documentation.
 
 ---
 
@@ -136,6 +143,29 @@ The **capability-capability** includes:
 
 *Recent completed tasks have been documented in _issue-tracking/issue-facade/CHANGELOG.md following Keep a Changelog format.*
 
+### 2026-01-05 - Phase 6: Integration Testing and Final Documentation
+- ✅ Ran complete test suite - all 97 tests passing (50 naming + 35 loader + 12 metaschema)
+- ✅ Performed end-to-end integration testing:
+  - Schema creation and validation
+  - Schema ingestion into registry
+  - Numbered schema listing
+  - Single schema validation (by number, filename, path)
+  - Batch validation (ranges, lists, --all)
+  - Schema deletion
+- ✅ Created comprehensive SCHEMA_MANAGEMENT_GUIDE.md with:
+  - Quick start guide and templates
+  - Complete command reference
+  - Common workflows and examples
+  - Best practices and troubleshooting
+  - Advanced usage patterns
+
+**Schema-of-Schemas Implementation Complete:**
+- 6 phases completed over 2 days
+- 97 unit tests (100% passing)
+- End-to-end integration verified
+- Comprehensive documentation delivered
+- Fully functional schema management system
+
 ### 2026-01-05 - Phase 5: Enhanced Schema Validation with Multiple Selection
 - ✅ Enhanced schema-list command with numbered references in all formats
 - ✅ Implemented schema selection parser supporting:

docs/SCHEMA_MANAGEMENT_GUIDE.md

@@ -0,0 +1,400 @@
+# Schema Management Guide
+
+Complete guide to managing schemas in MarkiTect using the Schema-of-Schemas system.
+
+## Overview
+
+MarkiTect provides a comprehensive schema management system with:
+- Markdown-first schema format with embedded JSON
+- Strict naming conventions for consistency
+- Metaschema validation for all schemas
+- Multi-schema batch validation
+- Schema registry with version tracking
+
+## Quick Start
+
+### 1. Create a New Schema
+
+Create a markdown file following the naming convention: `{domain}-schema-v{major}.{minor}.md`
+
+```bash
+# Example: blog-post-schema-v1.0.md
+```
+
+**Template:**
+
+```markdown
+---
+schema-id: https://markitect.dev/schemas/blog-post/v1.0
+version: 1.0.0
+status: stable
+domain: blog-post
+description: Schema for blog post documents
+---
+
+# Blog Post Schema v1.0.0
+
+## Overview
+This schema validates blog post documents with frontmatter and content sections.
+
+## Schema Definition
+
+```json
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "$id": "https://markitect.dev/schemas/blog-post/v1.0",
+  "title": "Blog Post Schema",
+  "description": "Schema for blog post documents",
+  "version": "1.0.0",
+  "type": "object",
+  "properties": {
+    "title": {
+      "type": "string",
+      "minLength": 1
+    },
+    "author": {
+      "type": "string"
+    },
+    "date": {
+      "type": "string",
+      "format": "date"
+    }
+  },
+  "required": ["title", "author"]
+}
+```
+\`\`\`
+
+### 2. Validate Your Schema
+
+Validate against the metaschema to ensure it follows MarkiTect conventions:
+
+```bash
+# Validate a single schema file
+markitect schema-validate ./blog-post-schema-v1.0.md
+
+# See detailed errors
+markitect schema-validate ./blog-post-schema-v1.0.md --detailed-errors
+```
+
+### 3. Ingest into Registry
+
+Add your schema to the registry:
+
+```bash
+markitect schema-ingest blog-post-schema-v1.0.md
+```
+
+### 4. List Registered Schemas
+
+View all schemas with numbered references:
+
+```bash
+# Simple format (default)
+markitect schema-list
+
+# Table format
+markitect schema-list --format table
+
+# JSON format
+markitect schema-list --format json
+```
+
+**Output:**
+```
+Found 4 schema(s):
+
+[1] 🔧 blog-post-schema-v1.0.md         (added: 2026-01-05T10:30:00)
+[2] 🔧 schema-schema-v1.0.md            (added: 2026-01-05T03:33:42)
+[3] 🔧 manpage-schema-v1.0.md           (added: 2026-01-05T03:33:42)
+[4] 🔧 api-documentation-schema-v1.0.md (added: 2026-01-05T03:33:35)
+```
+
+## Schema Validation
+
+### Single Schema Validation
+
+**By number:**
+```bash
+markitect schema-validate 1
+```
+
+**By filename (from registry):**
+```bash
+markitect schema-validate blog-post-schema-v1.0.md
+```
+
+**By filesystem path:**
+```bash
+markitect schema-validate ./my-schema.md
+```
+
+### Batch Validation
+
+**Validate a range:**
+```bash
+markitect schema-validate 1-3
+```
+
+**Validate specific schemas:**
+```bash
+markitect schema-validate 1,3,5
+```
+
+**Validate all schemas:**
+```bash
+markitect schema-validate --all
+```
+
+**Output:**
+```
+Validating 4 schema(s)...
+
+Results:
+
+  #  Schema                            Status    Details
+---  --------------------------------  --------  ---------
+  1  blog-post-schema-v1.0.md          ✅ Valid   v1.0.0
+  2  schema-schema-v1.0.md             ✅ Valid   v1.0.0
+  3  manpage-schema-v1.0.md            ✅ Valid   v1.0.0
+  4  api-documentation-schema-v1.0.md  ✅ Valid   v1.0.0
+
+Summary: 4 valid, 0 failed
+```
+
+## Schema Naming Conventions
+
+All schema filenames must follow this pattern:
+
+```
+{domain}-schema-v{major}.{minor}.md
+```
+
+### Rules
+
+- **Domain**: Lowercase letters, numbers, and hyphens only
+- **Version**: Major.minor format (e.g., `v1.0`, `v2.3`)
+- **Extension**: Must be `.md`
+- **No spaces**: Use hyphens for separation
+
+### Valid Examples
+
+- `blog-post-schema-v1.0.md`
+- `api-documentation-schema-v2.1.md`
+- `user-profile-schema-v1.0.md`
+
+### Invalid Examples
+
+- `BlogPost-schema-v1.0.md` (uppercase)
+- `blog_post-schema-v1.0.md` (underscore)
+- `blog-post-v1.0.md` (missing "schema")
+- `blog-post-schema-v1.md` (missing minor version)
+
+## Required Schema Fields
+
+All schemas must include these fields:
+
+### Frontmatter (YAML)
+```yaml
+---
+schema-id: https://markitect.dev/schemas/{domain}/v{major}.{minor}
+version: {major}.{minor}.{patch}
+status: draft|stable|deprecated
+domain: {domain}
+description: Brief description
+---
+```
+
+### JSON Schema
+```json
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "$id": "https://markitect.dev/schemas/{domain}/v{major}.{minor}",
+  "title": "Schema Title",
+  "description": "Schema description",
+  "version": "{major}.{minor}.{patch}"
+}
+```
+
+## Common Workflows
+
+### Revalidate All Schemas After Metaschema Changes
+
+When you update the metaschema, revalidate all registered schemas:
+
+```bash
+markitect schema-validate --all
+```
+
+### Check Schema Rigidity
+
+Analyze a schema for overly rigid constraints:
+
+```bash
+markitect schema-analyze my-schema.md
+```
+
+### Refine a Rigid Schema
+
+Automatically loosen overly specific constraints:
+
+```bash
+# Dry run (preview changes)
+markitect schema-refine my-schema.md --dry-run
+
+# Apply changes
+markitect schema-refine my-schema.md
+
+# Interactive mode
+markitect schema-refine my-schema.md --interactive
+```
+
+### Get Schema Details
+
+View schema metadata:
+
+```bash
+markitect schema-get blog-post-schema-v1.0.md
+```
+
+### Delete a Schema
+
+Remove a schema from the registry:
+
+```bash
+markitect schema-delete blog-post-schema-v1.0.md --confirm
+```
+
+## Resolution Precedence
+
+When validating schemas, MarkiTect uses this resolution order:
+
+1. **Registry (by filename)**: Exact match in the database
+2. **Filesystem (fallback)**: If not found in registry or looks like a path
+
+### Examples
+
+```bash
+# Looks up in registry first
+markitect schema-validate blog-post-schema-v1.0.md
+
+# Forces filesystem lookup (contains /)
+markitect schema-validate ./blog-post-schema-v1.0.md
+
+# Also forces filesystem
+markitect schema-validate ../schemas/blog-post-schema-v1.0.md
+```
+
+## Best Practices
+
+### Schema Development
+
+1. **Start with a template**: Use an existing schema as a starting point
+2. **Validate early**: Validate against the metaschema before ingesting
+3. **Use semantic versioning**: Major.minor.patch for all versions
+4. **Document thoroughly**: Include overview, usage, and examples
+5. **Test with real documents**: Validate actual documents against your schema
+
+### Version Management
+
+- **Increment major version**: Breaking changes to schema structure
+- **Increment minor version**: Backward-compatible additions
+- **Increment patch version**: Bug fixes and clarifications
+
+### Schema Organization
+
+```
+markitect/schemas/
+├── schema-schema-v1.0.md        # Metaschema
+├── manpage-schema-v1.0.md       # Man page documents
+├── api-documentation-schema-v1.0.md
+├── terminology-schema-v1.0.md
+└── blog-post-schema-v1.0.md     # Your schemas
+```
+
+## Troubleshooting
+
+### Schema Not Found
+
+```
+❌ Schema 'my-schema.md' not found in registry or filesystem
+```
+
+**Solution:** Use `markitect schema-list` to see available schemas, or provide a path: `./my-schema.md`
+
+### Validation Fails
+
+```
+❌ Schema validation failed: my-schema.md
+Found 2 validation error(s):
+```
+
+**Solution:** Check error messages and compare with metaschema requirements. Use `--detailed-errors` for more context.
+
+### Invalid Selector
+
+```
+❌ Invalid selector: Range 1-10 is out of bounds. Valid range: 1-4
+```
+
+**Solution:** Use `markitect schema-list` to see valid numbers, or check your range syntax.
+
+## Advanced Usage
+
+### Scripting with Schema Commands
+
+Validate schemas in CI/CD:
+
+```bash
+#!/bin/bash
+# Validate all schemas and exit with error if any fail
+if ! markitect schema-validate --all; then
+    echo "Schema validation failed!"
+    exit 1
+fi
+echo "All schemas valid"
+```
+
+### Batch Operations
+
+```bash
+# Validate recently added schemas
+markitect schema-validate 1-3
+
+# Validate specific critical schemas
+markitect schema-validate 1,5,8
+
+# Check just the metaschema
+markitect schema-validate 2
+```
+
+## Schema Extensions
+
+MarkiTect supports custom extensions in schemas:
+
+- `x-markitect-sections`: Section classification (required, recommended, optional, discouraged, improper)
+- `x-markitect-content-control`: Content validation rules and patterns
+- `x-markitect-metadata`: Additional metadata for MarkiTect processing
+
+See existing schemas for examples of these extensions.
+
+## Future Enhancements
+
+Planned features:
+- Wildcard/globbing support: `markitect schema-validate */manpage*`
+- Schema diff tool: Compare schema versions
+- Schema migration assistant: Help upgrade documents to new schema versions
+
+## Related Documentation
+
+- [Schema Naming Specification](../roadmap/schema-of-schemas/SCHEMA_NAMING_SPEC.md)
+- [Schema Loader Guide](../roadmap/schema-of-schemas/SCHEMA_LOADER_GUIDE.md)
+- [Metaschema Reference](../markitect/schemas/schema-schema-v1.0.md)
+
+## Support
+
+For issues or questions:
+- Check existing schemas as examples
+- Review metaschema validation errors carefully
+- Use `--detailed-errors` for more context
+- Consult the metaschema for requirements