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    fullstack web toolkit

    1

    Scaffold fullstack web applications with validated tech stacks, auth, CI/CD, and security baselines.

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    fullstack web toolkit

    Example session with this skill installed

    I need to build a SaaS MVP for a solo project. I want something fast to develop but easy to scale later. Suggest a stack and show me the plan.

    • Read your context and instructions
    • Compiled the fullstack web toolkit

    I have analyzed your requirements for a solo SaaS MVP. Based on the decision matrix, I recommend a stack optimized for developer velocity and vertical scaling.

    Stack Recommendation & Implementation Plan

    LayerSelectionRationale
    FrontendNext.js (App Router)Best-in-class DX for React with built-in SEO and routing.
    BackendFastAPI (Python)High performance, automatic OpenAPI generation, and fast iteration.
    DatabasePostgreSQLThe industry standard for relational data and future-proof scaling.
    DeploymentVercel + RailwayZero-config frontend hosting paired with easy managed infrastructure.
    AuthJWT + HTTP-only CookiesBalances statelessness with security best practices for SPAs.

    Implementation Steps

    Scaffold Project: I will execute scripts/scaffold_project.py --stack nextjs-fastapi-pg to generate your workspace.
    2. API Design: Generate openapi.yaml for your core resources and validate with scripts/validate_api_spec.py.
    3.

    Auth Wiring: Implement JWT logic using the auth-strategies.md guide, ensuring tokens are stored in secure cookies, not localStorage.
    4. CI/CD & Docker: Deploy using the provided templates/Dockerfile.fastapi and templates/github-actions-ci.yml.
    5.

    Security Check: Walk through the security-checklist.md to ensure your .env and CORS settings are production-ready.

    Next steps

    • Confirm this stack to begin the automated scaffolding process.
    • Define your primary API resources (e.g., Users, Subscriptions) for the OpenAPI spec.
    • Provide your hosting provider credentials for CI/CD secret configuration.

    Connects securely to your tools. The creator never sees your data.

    About this skill

    Developers often stall at the start of a project, paralyzed by choosing between Next.js or Nuxt, JWT or sessions, and Vercel or Fly.io. This skill eliminates analysis paralysis by providing a structured decision matrix and automated scaffolding for fullstack web applications.

    What it does

    • Architectural Selection matches your project to one of four optimized archetypes (SaaS, Marketing, Internal Tool, or High-Traffic API).
    • Automated Scaffolding generates a complete directory structure based on your chosen tech stack.
    • API Validation designs and lints OpenAPI specifications to prevent production errors.
    • Auth Implementation selects the right strategy and enforces strict token storage rules to prevent security leaks.
    • CI/CD Configuration provides matching Dockerfiles and GitHub Actions or GitLab CI templates.
    • Security Auditing performs a pre-launch check against a baseline of common vulnerabilities.

    How it works

    1. Define Archetype: Provide project type, team size, and traffic expectations to select a stack.
    2. Scaffold: Generate the project skeleton and directory tree using bundled scripts.
    3. Configure Layers: Step through API design, auth wiring, and testing setup in a specific, logical order.
    4. Deploy & Audit: Generate deployment configs and run the security baseline checklist before a final smoke test.

    Frameworks & tools

    Supports Next.js, Nuxt, SvelteKit, FastAPI, Express, Go (chi), PostgreSQL, SQLite, Docker, GitHub Actions, and GitLab CI.

    Why this beats prompting it yourself

    Generic prompts often result in mismatched stack components, like a CI file that does not align with your Dockerfile. This skill uses a strict decision matrix and interlinked templates to ensure your auth, build, and deployment layers are technically compatible and secure by default.

    Use cases

    • Launching a SaaS MVP with Next.js, FastAPI, and PostgreSQL.
    • Building a high-traffic API using Go and managed hosting.
    • Scaffolding a content-driven marketing site with a headless CMS.
    • Creating internal dashboards using SvelteKit and SQLite.

    Known limitations

    Supports specific mainstream stacks only. Requires Python 3 for scaffolding and validation scripts. Not designed for legacy frameworks like Rails or Phoenix.

    Requires Python 3 for scaffolding scripts. Limited to mainstream stacks (Next.js, Nuxt, FastAPI, Go). Refuses to overwrite existing directories without explicit flags.

    How to use

    1. 1

      Connect your agent to the Agensi MCP

      Copy the prompt and paste it into Claude, ChatGPT, Cursor or any agent that supports MCP. It sets up the connection for you. Manual setup

    2. 2

      Sign in to Agensi

      Your agent shows a sign-in link. Sign in and click Allow.

    3. 3

      Ask for what you need

      Your agent loads this skill and uses it on your task. It always asks before any payment.

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    Recently published to Agensi

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    Trust & safety

    Security scan

    Security scan passed 21 days ago

    Requires

    Python
    next
    Node.js
    playwright

    Permissions

    Terminal / Shell
    Browser
    Network Access
    Environment Variables

    Allowed Hosts

    api.example.com
    Listed21 days ago

    What's inside

    Frequently Asked Questions

    This skill eliminates 'analysis paralysis' by providing a structured decision matrix to select the best tech stack for your specific project archetype, then automatically generates a secure, compatible project skeleton.

    The toolkit provides production-ready scaffolding for Next.js, Nuxt, SvelteKit, FastAPI, Express, and Go (chi), paired with databases like PostgreSQL and SQLite.

    Unlike generic AI prompts, this skill uses interlinked templates to ensure your CI/CD pipelines, Dockerfiles, and Auth layers are technically compatible and secure by default.

    You will need Python 3 installed to run the included scaffolding and validation scripts, as well as an environment capable of running Docker if you choose containerized deployment.

    Yes, the skill includes built-in API linting for OpenAPI specs and a pre-launch security baseline checklist to ensure your application follows strict token storage and vulnerability standards.

    The purchase includes the architectural decision matrix, automated scaffolding scripts, a library of CI/CD templates, and the security baseline audit checklist.

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