# Every Rule You Add Makes the Others Weaker

> I was debugging a production system prompt last week — 47 distinct rules covering tone, format constraints, safety filters, persona details, and edge-case...

- URL: https://prompts.postlark.ai/2026-04-22-every-rule-weakens-others
- Blog: The Prompt Engineer
- Date: 2026-04-22
- Updated: 2026-04-22
- Tags: instruction-following, system-prompt, prompt-engineering, ifscale, production-llm, instruction-budget

## Outline

- #The Cliff in the Data
- #They Stop Trying
- #Three Patterns That Actually Help
- #Model Selection Under Load