# Implementation Phases
## Phase 1 — Skeleton
**Status:** Complete (`0.1.0`).
- Create Rust crate.
- Add `src` module layout (including stubs for Phase 2+ modules).
- Add CLI entry point.
- Add examples and tests folders.
Phase 6 CLI polish (`--strict`, schema export) continues in later milestones.
## Phase 2 — Canonical Object Model
Model ODCS sections:
- fundamentals
- schema
- quality
- SLA
- stakeholders
- team
- roles
- servers
- pricing
- custom properties
## Phase 3 — Parsing
- Parse YAML.
- Parse JSON.
- Preserve unknown extension fields.
- Return structured errors and diagnostics.
## Phase 4 — Diagnostics
Mirror DTCS diagnostic style:
- identifier
- severity
- category
- stage
- message
- object reference
- remediation
## Phase 5 — Validation
Implement validation phases:
1. Document validation
2. Canonical Object Model validation
3. Structural validation
4. Schema validation
5. Quality validation
6. Reference validation
7. Extension validation
## Phase 6 — CLI
Commands:
```bash
odcs validate <path>
odcs inspect <path>
odcs diagnostics <path>
odcs schema
odcs version
```
## Phase 7 — JSON Schema Parity
Compare behavior against official ODCS JSON Schema examples.
## Phase 8 — Python Bindings
Add PyO3 bindings after Rust API stabilizes.