Agent Plugin
Feature Development
An Anthropic plugin that separates feature work into codebase exploration, architecture design, implementation, and quality review.
What is Feature Development?
Feature Development adds a staged feature workflow to Claude Code. Its command coordinates three purpose-built agents: a code explorer builds a map of the existing implementation, a code architect turns that evidence into a design that fits local patterns, and a code reviewer examines the completed change. This division is useful for work where the difficult part is not typing code but preserving architectural intent across discovery, design, implementation, and verification.
Key capabilities
Evidence-first exploration
Builds codebase context before settling on a design.
Dedicated architecture stage
Separates design decisions from the implementation pass.
Closing quality review
Examines the resulting change after implementation instead of assuming the first pass is complete.
Use cases
Add a cross-module feature
Coordinate discovery and design when a request touches several existing ownership boundaries.
Included components
Commands
feature-dev
Coordinates the full feature workflow.
Agents
code-explorer
Investigates relevant modules and existing patterns.
code-architect
Designs an implementation that fits the discovered architecture.
code-reviewer
Reviews the completed implementation for quality and regressions.
Installation scope
- Claude Code with plugin support
- An existing codebase for feature work