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---
name: openspec
description: Spec-Driven Development (SDD). Use to create, review, or follow SPEC.md files for technical requirements and implementation planning.
---
## openspec (SDD)
Follow the Spec-Driven Development (SDD) protocol. ALWAYS create a `SPEC.md` before starting any significant implementation.
### SPEC.md Structure
1. **Overview**: High-level goal and problem statement.
2. **Requirements**: Functional and non-functional requirements.
3. **Technical Stack**: Selected technologies and versions.
4. **Architecture**: Component diagram and data flow.
5. **Implementation Plan**: Step-by-step breakdown (milestones).
6. **Verification**: How to test and verify the implementation.
### Guidelines
- **Draft First**: Never code without a spec if the task involves more than 1 file.
- **Reference**: Use `@spec-architect` to refine the `SPEC.md`.
- **Validation**: Ensure the spec is approved before moving to `ulw` (ultrawork).
- **Updates**: If requirements change, update the `SPEC.md` first.
