---
title: "Discussion on \"Vibe Coding vs. Spec-First SDD: How Locking an Executable Spec Eliminates Rework and Cuts Input Tokens by 32.9%\" | Hashnode"
description: "Discussion on \"Vibe Coding vs. Spec-First SDD: How Locking an Executable Spec Eliminates Rework and Cuts Input Tokens by 32.9%\". 💡 AI Labo Benchmark Series — Experiment E08 (Spec-Driven Development)\nThis post is part of our empirical benchmark series testing AI coding agent harness patterns inside network-isolated Proxmox VMs"
url: "https://hashnode.com/posts/e08-spec-first-sdd/6aefa9bd13fad5e1d7cf1552"
---

[Feed](https://hashnode.com/feed) /

Discussion

# [Vibe Coding vs. Spec-First SDD: How Locking an Executable Spec Eliminates Rework and Cuts Input Tokens by 32.9%](https://tappers.hashnode.dev/e08-spec-first-sdd?utm_source=hashnode&utm_medium=feed)

💡 AI Labo Benchmark Series — Experiment E08 (Spec-Driven Development) This post is part of our empirical benchmark series testing AI coding agent harness patterns inside network-isolated Proxmox VMs

2d ago · 8 min read · tappers.hashnode.dev  
Read the article

-   [#agentic-ai](https://hashnode.com/tag/agentic-ai)
-   [#harness](https://hashnode.com/tag/harness)
-   [#benchmark](https://hashnode.com/tag/benchmark)
-   [#software-engineering](https://hashnode.com/tag/software-engineering)
-   [#coding](https://hashnode.com/tag/coding)

## Written by

[tappers](https://hashnode.com/@tappers)

@tappers · tokyo,japan

  
[View profile](https://hashnode.com/@tappers)

## Responses

Markdown supported · ⌘↵ to post

No responses yet.