# Feature Dev

> Use when building a new feature or substantial behavior change in Cursor and the user wants a structured workflow from discovery through implementation and review.

- Skill: `6bnbn/feature-dev` (Agent Skill)
- Install (CLI): `npx skillmds@latest add 6bnbn/feature-dev`
- Raw SKILL.md: https://api.skillmd.com/api/skills/6bnbn/feature-dev/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Product & Planning
- Author: 6bnbn (https://skillmd.com/u/6bnbn)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/6bnbn/feature-dev

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# Feature Development

## Goal
Build features with a clear, reviewable flow: understand first, design second, implement third, verify last.

## Workflow
### 1. Discovery
- Restate the feature in plain language.
- Identify success criteria, constraints, and unclear details.
- Ask questions before designing if important behavior is unspecified.

### 2. Codebase Exploration
- Read the most relevant files and similar features.
- Reuse existing patterns for architecture, UI, state, tests, and naming.
- Note extension points and project conventions before proposing changes.

### 3. Design
- Present one recommended approach or 2-3 approaches if trade-offs are meaningful.
- Explain the impact on files, behavior, tests, and user experience.
- Get user approval before implementation.

### 4. Implementation
- Keep scope aligned with the approved plan.
- Prefer incremental edits over broad refactors.
- Add or update tests when behavior changes.
- For design-heavy UI work, combine with `frontend-design` after the approach is approved.

### 5. Review And Verification
- Self-check for regressions, accessibility issues, and confusing behavior.
- Run the most relevant validation steps for the change.
- Use `code-review` for a focused review if the task is non-trivial.

### 6. Summary
Report:
- What was built
- Key assumptions or decisions
- What was verified
- Any remaining risks or follow-up work

## Output Structure
When helpful, organize responses as:
- Summary
- Questions or assumptions
- Proposed approach
- Implementation
- Verification