Stop Writing Boilerplate
Focus on what makes your product unique. Let AI handle the rest.
From Spec to Code
Write your requirements in plain English. SiftCoder analyzes, plans, and implements your entire project with proper architecture and best practices.
Multi-Agent Collaboration
Planner breaks down tasks, Coder writes clean code, Investigator explores safely, Documenter creates docs, and QA ensures quality.
Production Ready
Every BUILD command generates tested, documented, and review-validated code. Quality gates ensure enterprise-grade output.
Self-Healing
Build fails? Tests break? QA Fixer automatically addresses issues and retries until all quality gates pass.
Complete Documentation
Architecture diagrams, API documentation, user guides, and technical docs—all generated automatically with your code.
Your Standards
SiftCoder learns your project's patterns, conventions, and style. Every implementation matches your team's practices.
BUILD Command Suite
Four powerful commands for every stage of project creation
/siftcoder:buildThe complete autonomous project builder. Give it a specification document and watch as an entire team of AI agents transforms it into a production-ready application.
What It Does
Analyzes your spec, creates implementation plan, generates code, writes tests, reviews quality, fixes issues, and produces documentation—all autonomously.
Best For
New projects, MVPs, full-stack applications, microservices, APIs, web apps from specification files.
Usage
/siftcoder:build <spec-file.md>
/siftcoder:build ecommerce-spec.md
/siftcoder:project-setupInstantly scaffold a new project with industry-standard tooling and configuration. Perfect for starting fresh or ensuring team consistency.
What It Does
Creates complete project structure with proper folder organization, configuration files, and development environment setup.
Best For
Starting new projects, quick prototyping, team onboarding, consistent project scaffolding.
Usage
/siftcoder:project-setup
src/, tests/, docs/, config files, README, .gitignore
/siftcoder:add-featureDescribe a feature in plain English. SiftCoder analyzes your codebase, plans the implementation, writes code, adds tests, and updates documentation.
What It Does
Investigates existing code, plans feature integration, implements across all necessary files, writes tests, and generates docs.
Best For
Adding features to existing projects, extending functionality, feature requests.
Usage
/siftcoder:add-feature "Add user authentication"
/siftcoder:add-feature "Implement password reset flow"
/siftcoder:apiGenerate complete REST APIs or GraphQL endpoints from data models or OpenAPI specifications. Full CRUD operations with authentication.
What It Does
Creates API endpoints, validation, authentication, error handling, rate limiting, documentation, and test suites.
Best For
API development, backend services, microservices, data access layers.
Usage
/siftcoder:api <spec.yaml>
Endpoints, validation, auth, docs, tests, error handling
How BUILD Works
A coordinated symphony of AI agents working together
Planner Agent Analyzes
Reads your specification, breaks down requirements into tasks, identifies dependencies, and creates a detailed implementation plan.
Investigator Agent Explores
Analyzes existing codebase (if any), identifies patterns, finds relevant files, and understands project structure in read-only mode.
Coder Agent Implements
Writes clean, production code following best practices and project conventions. Implements features across all necessary files.
QA Reviewer Validates
Reviews code for quality, runs tests, validates against acceptance criteria, checks style and security.
QA Fixer Improves
Automatically fixes any issues found by QA Reviewer, re-runs tests, and iterates until all quality gates pass.
Documenter Generates Docs
Creates architecture diagrams, API documentation, user guides, and technical documentation for the implementation.
Frequently Asked Questions
You can use plain English, Markdown, or structured formats. The key is to describe what you want clearly: features, user flows, data models, business rules, and technical requirements. SiftCoder's Planner Agent extracts requirements from any well-written spec.
Yes! The /siftcoder:add-feature command is designed for existing projects. It uses the Investigator Agent to analyze your codebase, understand patterns, and integrate new features seamlessly. For completely new projects, use /siftcoder:build.
Most BUILD workflows complete in 1-2 hours for complex multi-feature projects. Simple projects can finish in 20-30 minutes. The autonomous cycle runs continuously without waiting for human intervention, making it 10x faster than traditional development.
Use /siftcoder:pause at any time to stop the workflow. Then you can review progress with /siftcoder:status, guide it with /siftcoder:focus, or resume with /siftcoder:continue. You can also use /siftcoder:preview to see changes before they're applied.
BUILD supports most modern languages and frameworks: JavaScript/TypeScript (Node.js, React, Vue), Python (Django, Flask, FastAPI), Java (Spring), Go, Ruby on Rails, PHP, and more. The Coder Agent adapts to your project's language and framework.