Feature Dev

Feature Development Plugin

A comprehensive, structured workflow for feature development with specialized agents for codebase exploration, architecture design, and quality review.

Overview

The Feature Development Plugin provides a systematic 7-phase approach to building new features. Instead of jumping straight into code, it guides you through understanding the codebase, asking clarifying questions, designing architecture, and ensuring quality—resulting in better-designed features that integrate seamlessly with your existing code.

Philosophy

Building features requires more than just writing code. You need to:

• Understand the codebase before making changes
• Ask questions to clarify ambiguous requirements
• Design thoughtfully before implementing
• Review for quality after building

This plugin embeds these practices into a structured workflow that runs automatically when you use the /feature-dev command.

Command: /feature-dev

Launches a guided feature development workflow with 7 distinct phases.

Usage:

/feature-dev Add user authentication with OAuth

Or simply:

/feature-dev

The command will guide you through the entire process interactively.

The 7-Phase Workflow

Phase 1: Discovery

Goal: Understand what needs to be built

What happens:

• Clarifies the feature request if it's unclear
• Asks what problem you're solving
• Identifies constraints and requirements
• Summarizes understanding and confirms with you

Example:

You: /feature-dev Add caching
Claude: Let me understand what you need...
        - What should be cached? (API responses, computed values, etc.)
        - What are your performance requirements?
        - Do you have a preferred caching solution?

Phase 2: Codebase Exploration

Goal: Understand relevant existing code and patterns

What happens:

• Launches 2-3 code-explorer agents in parallel
• Each agent explores different aspects (similar features, architecture, UI patterns)
• Agents return comprehensive analyses with key files to read
• Claude reads all identified files to build deep understanding
• Presents comprehensive summary of findings

Agents launched:

• "Find features similar to [feature] and trace implementation"
• "Map the architecture and abstractions for [area]"
• "Analyze current implementation of [related feature]"