What is Spec-Driven Development (SDD)?

SDD makes machine-readable specs the single source of truth, generating tests, behaviors, and code in a chained workflow — ditching vague AI prompts for structured guidance.

How does SDD handle legacy codebases?

Using Spec Anchor for invariants and focused specs on change impacts, it incrementally organizes brownfields without full rewrites.

Will SDD replace traditional TDD or BDD?

No — it builds on them, automating spec-to-test-to-code pipelines for AI efficiency.

🤖 AI & Machine Learning

SDD Kills Vibe Coding: AI Dev's Architectural Fix

Vibe coding—throwing vague prompts at AI and praying—builds tech debt sandcastles. Spec-Driven Development flips the script, making specs the unyielding truth.

theAIcatchup Apr 10, 2026 3 min read

AI agent generating code constrained by spec blueprints in a development pipeline

⚡ Key Takeaways

Ditch vibe coding: Vague AI prompts breed bugs and debt. 𝕏
SDD flips priorities — specs rule, code regenerates. 𝕏
Scales greenfield to brownfield via anchors and organic specs. 𝕏

Published by

theAIcatchup

Community-driven. Code-first.

#AI software development #Spec-Driven Development #TDD BDD #vibe coding

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Originally reported by Dev.to

⚡ Key Takeaways

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