Article

An LLM codegen hero's journey

Harper Reed · harper.blog

How the workflow evolved after months of real use.

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The question it answers

  1. How do I plan and prompt so the AI builds what I actually want?

Read with it

  1. The most-copied spec-first workflow, with the exact prompts. harper.blog Guide My LLM codegen workflow atm Harper Reed
  2. A trusted second opinion on why the approach works. simonwillison.net Article Simon Willison on Harper Reed's workflow Simon Willison
  3. The official handbook: four levels of prompting, from training wheels to meta. lovable.dev Guide The Lovable Prompting Bible Lovable
  4. The concise, always-current version of the Bible. docs.lovable.dev Guide Prompting best practices (Lovable docs) Lovable
  5. Backend-aware prompting patterns from the database everyone uses. supabase.com Guide Vibe coding: best practices for prompting Supabase
  6. Plan mode, context hygiene, and step-sizing from the tool's makers. code.claude.com Guide Best practices for Claude Code Anthropic
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