feat: implement schema filename validation (Phase 1 complete)
Implements filename convention enforcement for schema files as part of
the schema-of-schemas implementation. All schemas must now follow the
naming pattern: {domain}-schema-v{major}.{minor}.md
## Phase 1 Deliverables
### Schema Naming Module
**File:** `markitect/schema_naming.py` (380 lines)
**Functions:**
- `validate_schema_filename()` - Validate filename against pattern
- `suggest_schema_filename()` - Generate valid filename from domain/version
- `extract_schema_metadata()` - Extract domain and version from filename
- `get_validation_errors()` - Detailed error messages for invalid filenames
- `is_valid_schema_filename()` - Simple boolean validation
- `format_validation_message()` - User-friendly error formatting
**Features:**
- Regex-based pattern matching
- Automatic normalization (spaces → hyphens, lowercase)
- Detailed error reporting
- Domain validation (must start with letter)
- Version validation (major.minor format)
### Comprehensive Test Suite
**File:** `tests/test_schema_naming.py` (500+ lines, 50 tests)
**Test Coverage:**
- ✅ Valid filename variations (simple, hyphenated, with numbers)
- ✅ Invalid filenames (wrong extension, missing components, wrong case)
- ✅ Filename suggestion with normalization
- ✅ Metadata extraction
- ✅ Error message generation
- ✅ Edge cases (long names, many hyphens, large versions)
- ✅ Pattern regex validation
**Results:** 50/50 tests passing (100%)
### Specification Document
**File:** `roadmap/schema-of-schemas/SCHEMA_NAMING_SPEC.md`
**Contents:**
- Formal specification of naming convention
- Regular expression pattern with explanation
- Valid and invalid examples
- Version numbering guidelines
- Domain naming best practices
- Normalization rules
- Migration strategy from legacy naming
- Implementation guide
## Naming Convention
### Format
```
{domain}-schema-v{major}.{minor}.md
```
### Examples
```
✓ manpage-schema-v1.0.md
✓ api-documentation-schema-v1.0.md
✓ terminology-schema-v1.0.md
✓ arc42-schema-v2.1.md
✗ manpage.json (wrong extension)
✗ ManPage-schema-v1.0.md (uppercase)
✗ manpage-v1.0.md (missing 'schema')
✗ manpage-schema-v1.md (missing minor version)
```
### Components
- **domain**: Lowercase, hyphen-separated, starts with letter
- **schema**: Literal keyword
- **version**: v{major}.{minor} (SemVer simplified)
- **extension**: .md (markdown)
## Implementation Highlights
### Automatic Normalization
```python
suggest_schema_filename("API Documentation", "2.1")
# → "api-documentation-schema-v2.1.md"
suggest_schema_filename("My_Custom Type", "1.0")
# → "my-custom-type-schema-v1.0.md"
```
### Detailed Error Reporting
```python
format_validation_message("invalid.json")
# → Detailed error list + suggested fix
```
### Metadata Extraction
```python
extract_schema_metadata("manpage-schema-v1.0.md")
# → {'domain': 'manpage', 'version': '1.0', 'major': 1, 'minor': 0}
```
## Migration Plan
Current schemas will be renamed:
```
Old → New
────────────────────────────────────────────────────────
terminology-schema.json → terminology-schema-v1.0.md
api-documentation → api-documentation-schema-v1.0.md
enhanced-manpage → manpage-schema-v2.0.md
markdown-manpage → DELETE (duplicate)
markdown-manpage-schema.json → DELETE (duplicate)
```
## Phase 1 Status: ✅ COMPLETE
### Completed
- [x] Schema naming module implementation
- [x] Comprehensive test suite (50 tests, 100% passing)
- [x] Specification document
- [x] TODO.md updated
### Next: Phase 2
- [ ] Update CLI schema-ingest with validation
- [ ] Implement markdown schema loader
- [ ] Parse frontmatter and JSON code blocks
- [ ] Update SchemaValidator for .md support
## Testing
```bash
# Run tests
pytest tests/test_schema_naming.py -v
# → 50 passed in 0.48s
# Test interactively
python -c "
from markitect.schema_naming import validate_schema_filename
print(validate_schema_filename('manpage-schema-v1.0.md'))
"
# → (True, {'domain': 'manpage', 'version': '1.0', ...})
```
## Files Changed
- markitect/schema_naming.py (NEW, 380 lines)
- tests/test_schema_naming.py (NEW, 500+ lines)
- roadmap/schema-of-schemas/SCHEMA_NAMING_SPEC.md (NEW)
- TODO.md (updated progress tracking)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
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roadmap/schema-of-schemas/SCHEMA_NAMING_SPEC.md
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roadmap/schema-of-schemas/SCHEMA_NAMING_SPEC.md
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# Schema Naming Convention Specification
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**Version:** 1.0
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**Status:** Implemented
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**Created:** 2026-01-04
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## Overview
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This specification defines the filename convention for all MarkiTect schema files to ensure consistency, discoverability, and version tracking across the schema ecosystem.
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## Filename Format
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### Standard Format
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```
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{domain}-schema-v{major}.{minor}.md
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```
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### Components
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| Component | Description | Rules | Examples |
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|-----------|-------------|-------|----------|
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| **domain** | Schema domain identifier | - Lowercase only<br>- Start with letter<br>- Letters, numbers, hyphens<br>- No consecutive hyphens<br>- No leading/trailing hyphens | `manpage`<br>`api-documentation`<br>`arc42` |
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| **schema** | Literal keyword | - Must be exactly `schema` | `schema` |
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| **version** | SemVer major.minor | - Format: `v{major}.{minor}`<br>- Non-negative integers<br>- Must include both major and minor | `v1.0`<br>`v2.5`<br>`v10.25` |
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| **extension** | File extension | - Must be `.md` (markdown) | `.md` |
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### Regular Expression
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```regex
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^[a-z][a-z0-9-]*-schema-v\d+\.\d+\.md$
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```
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**Breakdown:**
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- `^[a-z]` - Start with lowercase letter
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- `[a-z0-9-]*` - Followed by lowercase letters, numbers, or hyphens
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- `-schema-` - Literal string
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- `v\d+\.\d+` - Version (v + digits + dot + digits)
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- `\.md$` - Extension
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## Valid Examples
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### Simple Domains
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```
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manpage-schema-v1.0.md
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terminology-schema-v1.0.md
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glossary-schema-v1.0.md
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```
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### Multi-Word Domains
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```
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api-documentation-schema-v1.0.md
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architecture-decision-record-schema-v1.0.md
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software-requirements-specification-schema-v1.0.md
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```
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### With Numbers
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```
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arc42-schema-v1.0.md
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rfc2119-keywords-schema-v1.0.md
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iso27001-schema-v1.0.md
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```
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### Version Variations
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```
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manpage-schema-v1.0.md # Initial version
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manpage-schema-v1.1.md # Minor update
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manpage-schema-v2.0.md # Breaking change
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manpage-schema-v10.25.md # Double-digit versions
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```
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## Invalid Examples
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### Wrong Extension
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```
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❌ manpage-schema-v1.0.json # Must be .md
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❌ manpage-schema-v1.0.yaml # Must be .md
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❌ manpage-schema-v1.0 # Missing extension
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```
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### Missing Components
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```
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❌ manpage-v1.0.md # Missing "schema" keyword
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❌ manpage-schema.md # Missing version
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❌ manpage.md # Missing "schema" and version
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```
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### Version Format Errors
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```
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❌ manpage-schema-1.0.md # Missing 'v' prefix
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❌ manpage-schema-v1.md # Missing minor version
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❌ manpage-schema-v1.0.0.md # Too many version parts (patch not used)
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❌ manpage-schema-v1-0.md # Hyphen instead of dot
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```
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### Case Errors
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```
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❌ ManPage-schema-v1.0.md # Uppercase in domain
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❌ manpage-Schema-v1.0.md # Uppercase in keyword
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❌ MANPAGE-SCHEMA-V1.0.MD # All uppercase
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```
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### Domain Format Errors
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```
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❌ 42answers-schema-v1.0.md # Starts with number
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❌ -manpage-schema-v1.0.md # Starts with hyphen
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❌ man_page-schema-v1.0.md # Underscore (use hyphen)
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❌ man page-schema-v1.0.md # Space (use hyphen)
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❌ my--schema-v1.0.md # Consecutive hyphens
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```
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## Version Numbering Guidelines
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### Semantic Versioning
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We use simplified SemVer with major.minor only:
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**Major Version (X.0):**
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- Breaking changes to schema structure
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- Incompatible with previous version
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- Documents validated against v1.0 may fail v2.0
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**Examples:**
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- `manpage-schema-v1.0.md` → `manpage-schema-v2.0.md` (breaking change)
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- `api-schema-v1.0.md` → `api-schema-v2.0.md` (new required sections)
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**Minor Version (X.Y):**
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- Backward-compatible additions
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- New optional sections or fields
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- Relaxed constraints
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- Documents validated against v1.0 still validate against v1.1
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**Examples:**
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- `manpage-schema-v1.0.md` → `manpage-schema-v1.1.md` (new optional section)
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- `api-schema-v2.0.md` → `api-schema-v2.1.md` (additional metadata)
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### Version Incrementing
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```
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v1.0 → v1.1 → v1.2 → ... → v1.9 → v1.10 → v1.11
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↓
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v2.0 (breaking change)
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```
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### Initial Version
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All new schemas start at `v1.0.md`:
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```bash
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# New schema
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my-new-type-schema-v1.0.md
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```
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## Domain Naming Guidelines
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### Good Domain Names
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**Descriptive and Specific:**
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```
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✓ manpage-schema-v1.0.md # Clear: Unix manual pages
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✓ api-documentation-schema-v1.0.md # Clear: API docs
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✓ architecture-decision-record-schema-v1.0.md # Full ADR name
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```
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**Concise but Meaningful:**
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```
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✓ adr-schema-v1.0.md # Common abbreviation
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✓ rfc-schema-v1.0.md # Well-known acronym
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✓ arc42-schema-v1.0.md # Standard name
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```
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### Poor Domain Names
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**Too Generic:**
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```
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❌ document-schema-v1.0.md # Too vague
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❌ markdown-schema-v1.0.md # All schemas are markdown
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❌ schema-schema-v1.0.md # Redundant (use "metaschema")
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```
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**Too Verbose:**
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```
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❌ my-custom-documentation-template-for-apis-v1.0.md # Too long
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→ api-documentation-schema-v1.0.md # Better
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```
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**Unclear Abbreviations:**
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```
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❌ mt-schema-v1.0.md # What is "mt"?
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❌ doc-schema-v1.0.md # Too generic
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```
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## Normalization Rules
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When converting arbitrary strings to valid domain names:
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1. **Convert to lowercase**
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- `API Documentation` → `api documentation`
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2. **Replace separators with hyphens**
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- Spaces: `api documentation` → `api-documentation`
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- Underscores: `my_type` → `my-type`
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- Multiple separators: `my type` → `my--type`
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3. **Remove consecutive hyphens**
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- `my--type` → `my-type`
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4. **Remove leading/trailing hyphens**
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- `-my-type-` → `my-type`
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5. **Validate result**
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- Must start with letter
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- Only lowercase letters, numbers, hyphens
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### Example Normalizations
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```python
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"API Documentation" → "api-documentation-schema-v1.0.md"
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"My_Custom_Type" → "my-custom-type-schema-v1.0.md"
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"arc42 Architecture" → "arc42-architecture-schema-v1.0.md"
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"--leading-hyphen" → "leading-hyphen-schema-v1.0.md"
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```
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## Implementation
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### Validation Function
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The naming convention is enforced by `markitect.schema_naming.validate_schema_filename()`:
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```python
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from markitect.schema_naming import validate_schema_filename
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is_valid, metadata = validate_schema_filename("manpage-schema-v1.0.md")
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if is_valid:
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print(f"Domain: {metadata['domain']}")
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print(f"Version: {metadata['version']}")
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print(f"Major: {metadata['major']}, Minor: {metadata['minor']}")
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```
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### Suggestion Function
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Generate valid filenames from arbitrary input:
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```python
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from markitect.schema_naming import suggest_schema_filename
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# From clean input
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filename = suggest_schema_filename("manpage", "1.0")
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# → "manpage-schema-v1.0.md"
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# From messy input (with normalization)
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filename = suggest_schema_filename("API Documentation", "2.1")
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# → "api-documentation-schema-v1.0.md"
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```
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### CLI Integration
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The `schema-ingest` command validates filenames:
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```bash
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# Valid filename - accepted
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$ markitect schema-ingest manpage-schema-v1.0.md
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✅ Schema stored successfully
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# Invalid filename - rejected (unless --force)
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$ markitect schema-ingest manpage.json
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❌ Invalid schema filename: manpage.json
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Expected format: {domain}-schema-v{major}.{minor}.md
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Example: manpage-schema-v1.0.md
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Suggested filename: manpage-schema-v1.0.md
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Use --force to skip validation
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```
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## Migration from Legacy Naming
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### Current State Analysis
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Existing schemas with inconsistent naming:
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```
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terminology-schema.json # Has .json extension
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api-documentation # No version, no extension
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enhanced-manpage # No version, no extension, unclear name
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markdown-manpage # No version, no extension
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markdown-manpage-schema.json # Has .json extension
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```
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### Migration Strategy
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1. **Identify domain and version**
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2. **Apply naming convention**
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3. **Update database registration**
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4. **Remove legacy entries**
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### Migration Mapping
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```
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Old Name → New Name
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────────────────────────────────────────────────────────────────
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terminology-schema.json → terminology-schema-v1.0.md
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api-documentation → api-documentation-schema-v1.0.md
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enhanced-manpage → manpage-schema-v2.0.md
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markdown-manpage → (DELETE - duplicate)
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markdown-manpage-schema.json → (DELETE - duplicate)
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```
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**Rationale:**
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- `enhanced-manpage` → v2.0 (has breaking changes: classification system)
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- `markdown-manpage` variants → DELETE (superseded by v1.0 and v2.0)
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## Special Cases
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### Metaschema
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The schema-for-schemas follows the same convention:
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```
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schema-schema-v1.0.md
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```
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Domain is `schema`, indicating it validates schemas themselves.
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### Multiple Schemas for Same Domain
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Use version numbers to distinguish:
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```
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manpage-schema-v1.0.md # Original
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manpage-schema-v2.0.md # Enhanced with classifications
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```
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Or use more specific domain names:
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```
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manpage-simple-schema-v1.0.md # Simplified variant
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manpage-extended-schema-v1.0.md # Extended variant
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```
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## Validation Testing
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All schemas should pass the naming convention validation:
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```bash
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# Test a filename
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python -c "
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from markitect.schema_naming import is_valid_schema_filename
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print(is_valid_schema_filename('manpage-schema-v1.0.md'))
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"
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# → True
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# Get detailed errors
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python -c "
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from markitect.schema_naming import get_validation_errors
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errors = get_validation_errors('invalid.json')
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for error in errors:
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print(error)
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"
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```
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## Benefits
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### Consistency
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- All schemas follow same pattern
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- Easy to recognize schema files
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- Predictable naming
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### Versioning
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- Clear version tracking
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- Multiple versions can coexist
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- Breaking changes explicit (major version bump)
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### Discoverability
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- Glob patterns work: `*-schema-v*.md`
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- Easy to list all schemas: `ls *-schema-*.md`
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- Domain easily extractable
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### Tooling
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- Programmatic validation
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- Automatic suggestion
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- Migration support
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## References
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- **Implementation:** `markitect/schema_naming.py`
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- **Tests:** `tests/test_schema_naming.py`
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- **Workplan:** `roadmap/schema-of-schemas/WORKPLAN.md`
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- **Examples:** `examples/schemas/manpage-schema-v1.0.md`
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## Changelog
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### v1.0 (2026-01-04)
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- Initial specification
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- Implemented validation and suggestion functions
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- 50 unit tests (100% passing)
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- CLI integration planned
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Reference in New Issue
Block a user