F5 AI Generated
Application
Exploring the intersection of rapid AI-assisted development and enterprise-grade security. A product of "vibe coding" designed for AppWorld 2026.
What is Vibe Coding?
Vibe coding is an emerging AI-assisted software development technique where a programmer builds applications by conversing with an AI rather than writing code manually. The term was popularized by computer scientist Andrej Karpathy in early 2025.
In practice, it means describing what you want in natural language and letting the AI generate and iteratively refine the source code, with minimal human intervention in the code itself.
"I just see stuff, say stuff, run stuff, and copy paste stuff, and it mostly works."
Key Characteristics
- Natural Language Interface: English is the new programming language.
- Rapid Iteration: Focus on "vibes" and immediate functional results.
- Minimal Manual Syntax: LLMs handle the boilerplate and logic implementation.
- Accessibility: Lowers the barrier for non-programmers to build software.
History of Vibe Coding
The Prototyping Phase
AI-assisted coding began with simple code completions. Developers used models to write boilerplate functions, but the "mental model" remained manual.
The "Karpathy" Moment
Andrej Karpathy's viral post coined the term "Vibe Coding." Tools like Cursor and Replit Agent accelerated the ability to build entire apps by "vibe" alone.
Mainstream Adoption
By 2026, Vibe Coding entered enterprise discussions. The focus shifted from "can we build it?" to "can we secure it?" as LLM code reached 50%+ of all new repositories.
AI-Assisted vs. Vibe Coding
Understanding the shift in methodology
01 AI-Assisted Coding
- Human writes the core logic
- AI provides "autocompletion"
- High level of syntax knowledge required
- Slower but predictable control
02 Vibe Coding
- AI writes the core logic
- Human provides high-level "vibes"
- Minimal syntax knowledge required
- Extremely fast development cycles
Why Security Matters for AI-Generated Apps
AI speed is a double-edged sword. While it accelerates innovation, it often prioritizes "functional vibes" over security best practices. AI-generated code frequently misses input validation, hardcodes secrets, or introduces architectural technical debt.
Input Validation
LLMs may skip sanitization, leading to SQLi or XSS risks.
Secret Leakage
Prompts often include API keys that get baked into the source code.
"F5 Application Delivery and Security Platform provides the guardrails needed to move fast without breaking things, ensuring AI-generated applications meet enterprise security standards."
Frequently Asked Questions
What is vibe coding?
Vibe coding is building apps by talking to AI agents. You describe the functionality, and the AI handles the code generation, allowing you to focus on the "vibe" or user experience rather than syntax.
Is vibe coding secure?
Inherently, no. AI-generated code carries the same risks as any code written without security reviews. However, by using security-focused prompts and external guardrails like F5, it can be made production-ready.
How is this app generated?
This application was scaffolded using AI coding agents (like Cline) and refined through iterative prompting, demonstrating the exact "vibe coding" methodology it discusses.
Why does F5 care about AI-generated apps?
As the volume of AI-generated code grows, the potential for non-standard security vulnerabilities increases. F5 ensures that these applications remain secure, available, and performant regardless of how they were built.
What are SAST and DAST tools?
SAST (Static Application Security Testing): Analyzes source code for vulnerabilities without running the app. Great for catching hardcoded keys or bad logic.
DAST (Dynamic Application Security Testing): Tests the running application from the outside, like a hacker would. Great for catching injection risks or configuration errors.
Sources & Citations
Wikipedia: Vibe coding (2025) | Andrej Karpathy: Viral Post (Feb 2025) | F5 Brand Guidelines (2025) | AI-generated synthesis (no direct quote for FAQ logic).
Note: Some images are placeholders or referenced via Unsplash for educational purposes.