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Claude Code instruction limits: Use hooks for critical rules

Claude Code's instruction-following capabilities have a finite budget, meaning that adding too many rules to CLAUDE.md can cause the model to ignore critical instructions. Users should treat CLAUDE.md as a budget rather than a wishlist, prioritizing essential rules and considering hooks for deterministic actions. Rules that must be followed 100% of the time, such as avoiding secret commits, are better implemented as hooks rather than prose within CLAUDE.md. AI

IMPACT Optimizing CLAUDE.md usage can improve AI agent reliability and efficiency for developers.

RANK_REASON This item discusses a specific feature and limitation of a particular AI tool (Claude Code) and how to optimize its usage, rather than a new release or significant industry event.

Read on dev.to — LLM tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Claude Code instruction limits: Use hooks for critical rules

COVERAGE [1]

  1. dev.to — LLM tag TIER_1 English(EN) · Penloom Studio ·

    Your CLAUDE.md is too long — and that's why Claude Code ignores it

    <p>Everyone hits the same wall with Claude Code. You add a rule to <code>CLAUDE.md</code>. It works. You add ten more. They mostly work. You add forty more — and now Claude is cheerfully ignoring the rule you care about most, the one that's been sitting there since day one. So yo…