spec-writer
✓Write feature specifications that capture requirements and acceptance criteria. Use when (1) writing a new feature spec, (2) documenting functional requirements, (3) defining acceptance criteria for a feature, (4) capturing design goals and constraints for planned work, or (5) structuring a product idea into a formal specification.
Installation
SKILL.md
| Feature Overview | 2-3 paragraphs: what, who, problem solved | | Success Criteria | Measurable outcomes defining "done" | | Design Goals | Primary (must) and secondary (nice to have) | | User Experience | 1-2 paragraphs: interaction, journey | | Design Rationale | 1-2 paragraphs: why this approach, trade-offs |
| Constraints/Assumptions | Technical constraints, business assumptions | | Functional Requirements | FR-N format, max 6-8, with acceptance criteria | | Edge Cases | Unusual inputs, failure scenarios |
Include 2-4 criteria per requirement: happy path + key failure cases.
Write feature specifications that capture requirements and acceptance criteria. Use when (1) writing a new feature spec, (2) documenting functional requirements, (3) defining acceptance criteria for a feature, (4) capturing design goals and constraints for planned work, or (5) structuring a product idea into a formal specification. Source: jkappers/agent-skills.
Facts (cite-ready)
Stable fields and commands for AI/search citations.
- Install command
npx skills add https://github.com/jkappers/agent-skills --skill spec-writer- Source
- jkappers/agent-skills
- Category
- </>Dev Tools
- Verified
- ✓
- First Seen
- 2026-02-11
- Updated
- 2026-02-18
Quick answers
What is spec-writer?
Write feature specifications that capture requirements and acceptance criteria. Use when (1) writing a new feature spec, (2) documenting functional requirements, (3) defining acceptance criteria for a feature, (4) capturing design goals and constraints for planned work, or (5) structuring a product idea into a formal specification. Source: jkappers/agent-skills.
How do I install spec-writer?
Open your terminal or command line tool (Terminal, iTerm, Windows Terminal, etc.) Copy and run this command: npx skills add https://github.com/jkappers/agent-skills --skill spec-writer Once installed, the skill will be automatically configured in your AI coding environment and ready to use in Claude Code or Cursor
Where is the source repository?
https://github.com/jkappers/agent-skills
Details
- Category
- </>Dev Tools
- Source
- skills.sh
- First Seen
- 2026-02-11