tessl-labs/spec-kit
Specification-driven development workflow skills for AI coding assistants
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This plugin was archived by the owner on Feb 4, 2026
Reason: Superseded by tessl-labs/intent-integrity-kit
Spec-Kit Skills
A complete 10-phase specification-driven development workflow for AI coding assistants.
Overview
Spec-Kit provides skills that guide AI assistants through a structured development process, from defining project governance to implementing features and exporting tasks to GitHub Issues.
Workflow Phases
| Phase | Skill | Purpose |
|---|---|---|
| 0 | /speckit-00-constitution | Define project governance principles |
| 1 | /speckit-01-specify | Create feature specification from natural language |
| 2 | /speckit-02-clarify | Resolve ambiguities (max 5 questions) |
| 3 | /speckit-03-plan | Create technical implementation plan |
| 4 | /speckit-04-checklist | Generate quality checklists for requirements |
| 5 | /speckit-05-testify | Generate test specifications (TDD support) |
| 6 | /speckit-06-tasks | Generate task breakdown |
| 7 | /speckit-07-analyze | Validate cross-artifact consistency |
| 8 | /speckit-08-implement | Execute implementation |
| 9 | /speckit-09-taskstoissues | Export tasks to GitHub Issues |
Key Features
- Phase Separation: Strict boundaries between governance, requirements, and implementation
- Constitution Enforcement: All skills validate against project principles
- TDD Support: Generate test specs before implementation with tamper detection
- Checklist Gating: "Unit tests for English" validate requirements quality
- Self-Validating: Each skill checks its own prerequisites
- Cross-Platform: Bash and PowerShell support
Quick Start
-
Create a constitution (optional but recommended):
/speckit-00-constitution -
Specify a feature:
/speckit-01-specify Add user authentication with OAuth2 support -
Follow the workflow through plan, tasks, and implementation.
Artifacts Created
specs/NNN-feature-name/
├── spec.md # Feature specification
├── plan.md # Technical implementation plan
├── tasks.md # Task breakdown
├── research.md # Research findings
├── data-model.md # Entity definitions
├── quickstart.md # Integration scenarios
├── contracts/ # API specifications
├── checklists/ # Quality checklists
└── tests/
└── test-specs.md # TDD test specificationsInstallation
tessl install tessl-labs/spec-kit- Workspace
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