What problem does it solve? Turning a rough feature idea into a complete, testable specification is slow and error-prone. This Skill converts a natural language feature description into a structured spec.md file with user scenarios, functional requirements, and measurable success criteria, ready for planning. ## Core Features & Use Cases - Specification Generation: Creates a numbered feature directory under specs/ with a spec.md file built from the resolved spec-template, covering user scenarios, requirements, and success criteria. - Quality Validation: Generates a requirements checklist and iteratively validates the spec against completeness, testability, and technology-agnostic criteria, with up to 3 clarification questions for ambiguous points. - Extension Hooks: Executes optional and mandatory before_specify and after_specify hooks defined in .specify/extensions.yml, such as automatic git branch creation. - Use Case: A product owner types a feature idea like "add OAuth2 login for the mobile app" and receives a complete, validated specification at specs/003-oauth2-login/spec.md ready for /speckit-plan. ## Quick Start Ask the assistant to create a feature specification for your idea, for example: create a spec for adding user authentication with OAuth2 to the application.