Autonomous Feature Developer

"Add a login page" — done in 5 minutes.

An autonomous AI agent that takes feature requests for webapp projects and handles the full lifecycle: requirement analysis, implementation, testing, debugging, iteration, and delivery with a development report.

How It Works

flowchart LR
    A["💡 Feature Request"] --> B["📋 Requirement<br/>Analysis"]
    B --> C["📝 Implementation<br/>Plan"]
    C --> D{"Subagent<br/>Execution"}
    D --> E["🧪 Test &<br/>Debug"]
    E --> F{"Quality<br/>Gates"}
    F -->|"Pass"| G["📊 Delivery<br/>Report"]
    F -->|"Fail"| D

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Why Autonomous Feature Developer?

Traditional Development	Autonomous Feature Developer
Hours of manual coding	Minutes of AI-powered implementation
You write tests, fix bugs, iterate	Agent handles testing, debugging, and iteration
Context switching breaks flow	Describe once, get production-ready code
No documented development path	Full development report with every feature

Key Features

🤖 Automated Implementation

From requirement to production-ready code with minimal user intervention. Just describe what you want — the agent plans, codes, tests, and delivers.

🧪 Full Testing Pipeline

Integrates Playwright for frontend testing, backend API testing, and LLM integration testing. Tests are part of every deliverable.

🔍 Intelligent Debugging

Automatic error diagnosis with iterative fixes. When tests fail, the agent diagnoses the root cause, applies fixes, and re-runs until green.

✅ Quality Gates

Code review and verification before delivery. Each feature passes through automated checks: test coverage, code quality, and functional correctness.

📊 Development Report

Every feature comes with a comprehensive report documenting what was built, how it was implemented, issues encountered and resolved, and test results.

🔌 Superpowers Integration

Built on the superpowers workflow engine — leverages 8 proven sub-skills (brainstorming, writing-plans, TDD, webapp-testing, systematic-debugging, and more).

Quick Start

📖 Click to expand

Install

1. Ensure opencode is installed
2. Install the superpowers skill package:

   # Follow instructions at https://github.com/obra/superpowers

3. Clone this skill to your skills directory:

   git clone https://github.com/ZelinZhou-THU/autonomous-feature-developer.git
   mv autonomous-feature-developer ~/.opencode/skills/

Use

Simply describe your feature in OpenCode:

"I want to add a user profile page with avatar upload and editing capabilities"

The skill will:

1. Clarify requirements if needed
2. Create an implementation plan
3. Execute tasks using subagents
4. Run tests and debug issues
5. Iterate until quality standards are met
6. Deliver a complete feature with development report

Skill Dependencies

📖 Click to expand

This skill requires the following sub-skills from the superpowers package:

Skill	Purpose
brainstorming	Requirement clarification
writing-plans	Implementation planning
subagent-driven-development	Task execution
test-driven-development	Test-first implementation
webapp-testing	Playwright-based frontend testing
systematic-debugging	Error diagnosis and fixes
requesting-code-review	Code quality review
verification-before-completion	Final verification

Project Structure

📖 Click to expand

autonomous-feature-developer/
├── SKILL.md                    # Core skill definition
├── docs/
│   └── design.md               # Design document
├── LICENSE
├── README.md                   # English
└── README_zh.md                # Chinese

Supported Project Types

• FastAPI + vanilla JavaScript webapps
• Playwright for frontend testing
• Adaptable to other tech stacks with minor configuration

Decision Boundaries

User intervention required for:

• Architecture decisions (component connections, design patterns)
• System-level operations (file permissions, environment setup)
• Data security decisions (API keys, sensitive data)
• Third-party service configuration

Automated (no user intervention):

• Implementation details
• Test scenarios and edge cases
• Bug diagnosis and fixes
• UI/UX refinements within existing patterns

License

Apache 2.0 — see LICENSE