I kept writing lazy prompts and blaming the AI for bad answers — so I built an editor for my prompts. Prompt Fixer marks up your ChatGPT/Claude prompt like a real editor would — showing exactly what's missing (role, context, format, tone, audience, constraints) with a before/after score and clickable annotations explaining each fix. Rule-based, not an LLM wrapper — instant, free, no sign-up. Paste, fix, copy. Built after one too many "write me an email" prompts that got me nothing useful.