Completed Phase 2 of the schema-of-schemas implementation with full
markdown schema support. This enables schemas to be authored as
markdown files with rich documentation and embedded JSON schemas.
Core Implementation (markitect/schema_loader.py):
- MarkdownSchemaLoader class with comprehensive parsing capabilities
- YAML frontmatter extraction with error handling
- JSON code block extraction with section preference (## Schema Definition)
- Metadata merging with x-markitect-source tracking
- Schema saving with template support and round-trip capability
- Helper methods: list_json_blocks(), validate_schema_structure()
Test Coverage (tests/test_schema_loader.py):
- 35 comprehensive unit tests (100% passing)
- Tests for loading, parsing, saving, round-trip conversion
- Edge case handling (empty files, binary files, malformed blocks)
- Fixed binary file test to use invalid UTF-8 sequences
Example Schema (markitect/schemas/manpage-schema-v1.0.md):
- First markdown schema following naming convention
- Complete manpage schema with frontmatter + documentation + JSON
- Demonstrates section classification and content control
- Shows proper structure for future schema authors
Documentation (roadmap/schema-of-schemas/SCHEMA_LOADER_GUIDE.md):
- Comprehensive user guide (600+ lines)
- API reference with examples
- Best practices and troubleshooting
- Integration patterns for CLI and validator
Progress Tracking:
- Updated TODO.md with Phase 2 completion
- Updated CHANGELOG.md with implementation details
- Next: Phase 3 - Schema-for-Schemas Metaschema
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit completes Phase 2 of schema evolution work and establishes
a new example demonstrating schema usage for terminology documents.
## New Features
### Terminology Validation Example (examples/terminology/)
- Complete example terminology document with proper structure
- JSON schema with MarkiTect extensions for validation
- Demonstrates schema usage beyond manpages (glossaries, lexicons)
- Validates term structure: Definition, Synonyms, Related Terms, Examples
- Includes content control and quality validation rules
- Full documentation with usage examples and best practices
### Schema Registration System
- Registered terminology schema in markitect database
- Created schema catalog (markitect/schemas/schema-catalog.yaml)
- Copied schema to official location (markitect/schemas/)
- Provides metadata, features, and usage info for all schemas
### Improved schema-list Command
- Now displays creation timestamps in default output
- Table format includes Created/Updated columns
- Cleaner timestamp formatting (removed microseconds)
- Better visibility into when schemas were added
## Files Changed
Added:
- examples/terminology/README.md - Complete documentation
- examples/terminology/terminology-example.md - Example glossary
- examples/terminology/terminology-schema.json - Validation schema
- markitect/schemas/terminology-schema.json - Registered schema
- markitect/schemas/schema-catalog.yaml - Schema registry
Modified:
- markitect/cli.py - Enhanced schema-list with timestamps
- TODO.md - Documented Phase 2 completion and new example
Moved:
- SCHEMA_EVOLUTION_WORKPLAN.md → todo/ directory
## Schema Features Demonstrated
- Heading hierarchy validation (H1 → H2 → H3)
- Term structure validation with required/optional fields
- Content quality metrics (word counts, readability targets)
- MarkiTect extensions (x-markitect-sections, x-markitect-content-control)
- Classification system (required/recommended/optional/discouraged/improper)
## Usage
```bash
# List schemas with timestamps
markitect schema-list
# Validate terminology document
markitect validate glossary.md --schema terminology-schema.json
# View in table format
markitect schema-list --format table
```
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
