/feature-dev
Guided feature development with codebase understanding and architecture focus
> /plugin marketplace add affaan-m/ECC > /plugin install ecc@ecc
How it fires
How this command gets triggered: by you, by Claude, or both.
- Fires itselfClaude auto-loads it when your prompt matches the work.
- You can call itInvoke it directly when you want it.
- Slash command
/feature-dev
Context preview
What this command does when you run it.
Guided feature development with codebase understanding and architecture focus
Command definition
feature-dev.mddescription: Guided feature development with codebase understanding and architecture focus
A structured feature-development workflow that emphasizes understanding existing code before writing new code.
Phases
1. Discovery
- read the feature request carefully
- identify requirements, constraints, and acceptance criteria
- ask clarifying questions if the request is ambiguous
2. Codebase Exploration
- use `code-explorer` to analyze the relevant existing code
- trace execution paths and architecture layers
- understand integration points and conventions
3. Clarifying Questions
- present findings from exploration
- ask targeted design and edge-case questions
- wait for user response before proceeding
4. Architecture Design
- use `code-architect` to design the feature
- provide the implementation blueprint
- wait for approval before implementing
5. Implementation
- implement the feature following the approved design
- prefer TDD where appropriate
- keep commits small and focused
6. Quality Review
- use `code-reviewer` to review the implementation
- address critical and important issues
- verify test coverage
7. Summary
- summarize what was built
- list follow-up items or limitations
- provide testing instructions
Your agent can write code, but ECC gives it a coordinated engineering system and toolbox: it plans before it builds, verifies changes with tests, reviews its own work from a fresh context, remembers what matters, and turns repeated wins into reusable skills
Repo: affaan-m/ECC
Other commands on ecc.
- /add-language-rules
Workflow command scaffold for add-language-rules in everything-claude-code.
Open command - /database-migration
Workflow command scaffold for database-migration in everything-claude-code.
Open command - /feature-development
Workflow command scaffold for feature-development in everything-claude-code.
Open command - /aside
Answer a quick side question without interrupting or losing context from the current task. Resume work automatically after answering.
Open command - /auto-update
Pull the latest ECC repo changes and reinstall the current managed targets.
Open command - /build-fix
Detect the project build system and incrementally fix build/type errors with minimal safe changes.
Open command

