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Simon Willison on Harper Reed's workflow

Simon Willison · simonwillison.net

A trusted second opinion on why the approach works.

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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. How the workflow evolved after months of real use. harper.blog Article An LLM codegen hero's journey Harper Reed
  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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