CodexSkills
App Building20 skills

Vibe Coder App Builder Pack

20 skills for turning rough app ideas into scoped, shippable AI-built products.

Turn a raw idea into a clear build plan, product spec, database structure, interface flow, and launch checklist your AI coding agent can execute without wandering.

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Included Skills

App Idea Validator

Pressure-tests AI-assisted app and MVP builds before execution. Use when Codex needs to judge whether an idea, niche, offer, or workflow has enough signal, demand, constraints, and upside to pursue.

MVP Scope Cutter

Guides Codex through mvp scope cutter for AI-assisted app and MVP builds. Use when solo builders and vibe coders need a concrete, high-quality build-ready product specs, app flows, and implementation checklists workflow with small scope, clear contracts, safe defaults, testable behavior, and launch readiness.

PRD Generator

Guides Codex through prd generator for AI-assisted app and MVP builds. Use when solo builders and vibe coders need a concrete, high-quality build-ready product specs, app flows, and implementation checklists workflow with small scope, clear contracts, safe defaults, testable behavior, and launch readiness.

Feature Spec Writer

Writes usable build-ready product specs, app flows, and implementation checklists with context-specific structure and editing discipline. Use when Codex needs to produce copy that is concrete, accurate, and ready to revise or publish.

User Flow Mapper

Maps messy AI-assisted app and MVP builds context into a clear structure, relationships, and next actions. Use when Codex needs to organize inputs before building build-ready product specs, app flows, and implementation checklists.

Database Schema Planner

Plans build-ready product specs, app flows, and implementation checklists for solo builders and vibe coders. Use when Codex needs to turn goals, constraints, and context into a sequenced plan with decisions, dependencies, and QA criteria.

API Route Planner

Plans build-ready product specs, app flows, and implementation checklists for solo builders and vibe coders. Use when Codex needs to turn goals, constraints, and context into a sequenced plan with decisions, dependencies, and QA criteria.

Auth Flow Builder

Builds a repeatable AI-assisted app and MVP builds asset or system from raw context. Use when Codex needs to produce a complete artifact, not generic advice.

Stripe Checkout Builder

Builds a repeatable AI-assisted app and MVP builds asset or system from raw context. Use when Codex needs to produce a complete artifact, not generic advice.

Supabase Setup Assistant

Guides Codex through supabase setup assistant for AI-assisted app and MVP builds. Use when solo builders and vibe coders need a concrete, high-quality build-ready product specs, app flows, and implementation checklists workflow with small scope, clear contracts, safe defaults, testable behavior, and launch readiness.

Error Handling Architect

Diagnoses technical failures with reproducible evidence. Use when Codex needs to inspect errors, isolate root cause, apply the smallest safe fix, and verify the result.

Frontend Component Planner

Plans build-ready product specs, app flows, and implementation checklists for solo builders and vibe coders. Use when Codex needs to turn goals, constraints, and context into a sequenced plan with decisions, dependencies, and QA criteria.

Mobile-First UI Builder

Builds a repeatable AI-assisted app and MVP builds asset or system from raw context. Use when Codex needs to produce a complete artifact, not generic advice.

Admin Dashboard Planner

Plans build-ready product specs, app flows, and implementation checklists for solo builders and vibe coders. Use when Codex needs to turn goals, constraints, and context into a sequenced plan with decisions, dependencies, and QA criteria.

Onboarding Flow Builder

Builds a repeatable AI-assisted app and MVP builds asset or system from raw context. Use when Codex needs to produce a complete artifact, not generic advice.

Empty State Designer

Guides Codex through empty state designer for AI-assisted app and MVP builds. Use when solo builders and vibe coders need a concrete, high-quality build-ready product specs, app flows, and implementation checklists workflow with small scope, clear contracts, safe defaults, testable behavior, and launch readiness.

Form Validation Builder

Builds a repeatable AI-assisted app and MVP builds asset or system from raw context. Use when Codex needs to produce a complete artifact, not generic advice.

Deployment Checklist

Guides Codex through deployment checklist for AI-assisted app and MVP builds. Use when solo builders and vibe coders need a concrete, high-quality build-ready product specs, app flows, and implementation checklists workflow with small scope, clear contracts, safe defaults, testable behavior, and launch readiness.

Environment Variables Auditor

Audits AI-assisted app and MVP builds for weaknesses, risks, missed opportunities, and next fixes. Use when Codex needs to review an existing asset or system before shipping.

Launch QA Checklist

Guides Codex through launch qa checklist for AI-assisted app and MVP builds. Use when solo builders and vibe coders need a concrete, high-quality build-ready product specs, app flows, and implementation checklists workflow with small scope, clear contracts, safe defaults, testable behavior, and launch readiness.

Supporting Docs

START_HERE.md
README.md
INSTALL.md
PACK_GUIDE.md
LICENSE.md
CHANGELOG.md
AGENTS.md
skills/*/SKILL.md
skills/*/agents/openai.yaml
skills/*/references/context-template.md
skills/*/assets/output-template.md

Install, customize, ship

Own the files. Edit the hooks, grading weights, CTAs, and scheduling setup for your niche.

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