Interactive project design skill that guides users through a structured 3-phase process to produce a complete software specification document. Use when a user wants to: (1) plan a new software project from scratch, (2) design the architecture of an application, (3) create a technical specification, (4) do requirements gathering for an app or system, (5) produce a project blueprint or design doc. Triggers on phrases like "design a project", "plan an app", "create a specification", "architect a system", "help me plan a software project", "requirements gathering", "technical design", "system design document". Do NOT use for existing codebases, code reviews, debugging, or general coding tasks.
Install
npx skillscat add carlitose/project-designer-skill Install via the SkillsCat registry.
Project Designer
Interactive 3-phase process to design a software project from idea to complete specification document.
Core Behavior
- Always interactive: ask one question at a time, wait for user response
- Never assume: always ask, never go off on tangents
- Summarize and confirm: at the end of each phase, present a summary table and get explicit approval
- Rigid order: always follow Phase 1 → Phase 2 → Phase 3
- Output: generate a single comprehensive Markdown document at the end
Workflow
Phase 1: Requirements → Phase 2: Specifications → Phase 3: System Design → Output MDEach phase has a defined question sequence. See phases.md for detailed phase instructions.
Interaction Rules
- One question per message — never overwhelm with multiple questions
- Provide options — offer numbered choices to speed up decisions
- Track IDs — assign IDs to all items (FR01, NFR01, US01, UC01, EC01, QR01)
- Use tables — present summaries as Markdown tables
- Confirm before advancing — at each phase boundary, show full summary, ask for confirmation
- Respect scope — MVP = minimal, enterprise = scale up
- Match user language — respond in the language the user writes in
- Challenge gently — suggest alternatives but respect user's final decision
Output
See output-template.md for final document structure.
When all 3 phases are confirmed, generate a single .md file with the complete specification, save to /mnt/user-data/outputs/, and present it to the user.