saas mvp builder coding agent

    1

    Converts SaaS ideas into technical MVP architecture plans, data models, and deployment roadmaps.

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    saas mvp builder coding agent

    Example session with this skill installed

    I want to build a SaaS for freelance developers to track their billable hours and auto-generate Stripe invoices. I prefer using Next.js and Supabase.

    • Read your context and instructions
    • Compiled the saas mvp builder

    I have analyzed your freelance billing SaaS idea. Below is the technical MVP architecture and build plan, focused on getting you to a functional launch with Next.js and Supabase.

    MVP Plan: FreelanceBill

    1. Idea Summary

    A lean time-tracking and automated invoicing tool for solo developers, using Stripe for payment settlement.

    2. User Personas

    • Freelancer: Primary user who tracks time, manages clients, and triggers invoices.
    • Client: Secondary user (passive) who receives and pays invoices via hosted links.

    3. Core Flows

    1. Time Entry: Freelancer logs hours -> Selects Project -> System saves entry.
    2. Invoice Gen: Freelancer selects project -> System aggregates unbilled hours -> Generates Stripe Invoice.
    3. Payment: Client receives email -> Opens Stripe Hosted Checkout -> Pays -> Webhook updates status.

    4. Scope Boundaries

    • In-Scope: Manual time logging, Stripe integration, PDF invoice generation, client contact list.
    • Out-of-Scope: Automated desktop activity tracking, multi-currency support, team seats, expense tracking.

    5. Data Model

    EntityFieldsRelationships
    Profilesid, email, stripe_account_id1:N Projects
    Clientsid, name, email, profile_id1:N Projects
    Projectsid, name, hourly_rate, client_id1:N TimeLogs
    TimeLogsid, duration, description, project_id, is_billedBelong to Project

    6. Authentication & Authorization

    • Method: Supabase Auth (Magic Links/Email).

    Authorization: Row Level Security (RLS) ensures freelancers only see their own Profiles and related child data.

    7. UI Structure

    • Dashboard: Weekly summary of hours and pending payments.
    • Time Tracker: Simple form for project selection and duration.
    • Client Manager: CRUD for client contact info.
    • Invoice View: List of generated invoices and their Stripe status.

    8. Payments

    • Provider: Stripe Connect or standard Stripe Invoicing.
    • Handling: Use Stripe Webhooks to listen for invoice.paid to toggle is_billed in the DB.

    9. Implementation Stack

    • Frontend: Next.js (App Router) - standard for SaaS SEO and performance.
    • Backend/DB: Supabase (PostgreSQL + Auth) - eliminates backend boilerplate.
    • Hosting: Vercel - native integration for Next.js and easy preview deployments.

    10. Launch Readiness Checklist

    • Stripe Webhook secret configured in production.
    • RLS policies verified for cross-tenant data leaks.
    • Environment variables set for Supabase/Stripe.
    • Legal: Privacy Policy and Terms of Service pages live.
    • Database backup schedule enabled.

    Next steps

    1. Initialize the Next.js project and install the @supabase/supabase-js client.
    2. Configure the database schema in Supabase using the table provided above.
    3. Setup the Stripe CLI to test webhook handling locally.

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    About this skill

    The problem

    Vague SaaS ideas often lead to over-engineered architectures and scope creep. Developers waste weeks building features that aren't core to the MVP because they lacked a technical roadmap.

    What it does

    • Extracts core value propositions and user personas from raw product descriptions.
    • Maps critical user journeys into step-by-step technical flows.
    • Defines strict scope boundaries, explicitly listing what is excluded to prevent creep.
    • Generates a lean data model, auth strategy, and UI screen hierarchy.
    • Recommends a proven tech stack with specific deployment and testing plans.

    Why this beats prompting it yourself

    General prompts often ignore the "boring" but critical parts of a SaaS, like webhook idempotency or environment rollbacks. This skill enforces a 14-point architectural standard that ensures you don't miss edge cases or build a data model that requires immediate migration.

    Use cases

    • Turning a "Uber for X" pitch into a buildable technical specification.
    • Defining the data schema and auth roles for a multi-tenant B2B tool.
    • Selecting a stable stack for a solo-founder project to minimize maintenance.
    • Auditing a feature list to strip it down to a 3-6 screen MVP.

    Known limitations

    Does not generate implementation code. Focuses strictly on SaaS architecture and is not suitable for e-commerce, portfolios, or content sites.

    Does not generate production code. Limited to SaaS architectures; not for e-commerce or static sites. Requires a clear 1-3 sentence product description to start.

    How to use

    1. 1

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    3. 3

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    What's inside

    Frequently Asked Questions

    This agent delivers a comprehensive technical blueprint including a core data schema, user journey maps, a vetted tech stack recommendation, and a strict 'out-of-scope' list to prevent feature creep.

    No, this skill is strictly an architectural engine that generates the structural plan and data models needed before coding begins; it does not output executable source code.

    The skill is designed to work with any leading LLM that supports complex reasoning, though it performs best with models like GPT-4o or Claude 3.5 Sonnet that can handle multi-step technical planning.

    Yes, it is specifically optimized for multi-tenant B2B applications, providing detailed strategies for data isolation, authentication roles, and permission levels.

    You receive lifetime access to the skill, including all future updates to the 14-point architectural standards and tech stack recommendations as industry best practices evolve.

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