Stop explaining yourself to Claude

A developer found that most prompts for Claude contain unnecessary context the AI already knows, wasting tokens. By stripping social pleasantries and background information to keep only the "delta"—the specific problem or unknown—prompts can be reduced by up to 70% without losing answer quality. The developer created a Claude skill that automatically applies this compression, with three intensity levels for different use cases.

You're wasting tokens. Not a little -a lot. Here's a prompt I see constantly: "I have a React app and I'm using the useState hook. My component re-renders every time the parent renders even though the props haven't changed. Why is this happening?" Claude doesn't need any of that setup. It already knows React. It already knows what useState is. The only thing it needed was: "Component re-renders on parent render. Props unchanged. Why." Same answer. 64% fewer tokens. Most prompts are written for humans. We explain context, name the framework, describe how things work before asking the question. That's how we communicate with each other. But Claude already knows the context. The only thing it needs is the delta — the new information, the specific problem, the unknown. Everything else is noise. Claude already knows these — stop re-explaining them: Social noise that adds zero signal: What you should never strip: Debugging: Before 41 tokens : "I'm working on a Node.js Express API and I'm getting a 401 unauthorized error when I try to call the endpoint. I'm passing the JWT token in the Authorization header." After 12 tokens : "401 on endpoint. JWT in Authorization header." Code review: Before 29 tokens : "Could you please review this Python function and tell me if there are any issues or improvements I could make?" After 6 tokens : "Review. Issues + improvements." Explanation: Before 19 tokens : "I was wondering if you could explain how database connection pooling works in simple terms?" After 5 tokens : "Explain connection pooling. Simple." Single prompt savings look small. But across a real session, it compounds. Here's a simulated 20-turn dev session — the kind where you're debugging something across multiple back-and-forths: | Turn | Verbose tokens | Delta tokens | Saved | |---|---|---|---| | 1 | 48 | 18 | 30 | | 2 | 35 | 12 | 23 | | 3 | 52 | 14 | 38 | | 4 | 29 | 8 | 21 | | 5 | 41 | 11 | 30 | | 6 | 33 | 9 | 24 | | 7 | 44 | 15 | 29 | | 8 | 38 | 10 | 28 | | 9 | 31 | 8 | 23 | | 10 | 45 | 13 | 32 | | 11 | 27 | 7 | 20 | | 12 | 39 | 11 | 28 | | 13 | 50 | 16 | 34 | | 14 | 36 | 10 | 26 | | 15 | 42 | 12 | 30 | | 16 | 28 | 8 | 20 | | 17 | 46 | 14 | 32 | | 18 | 33 | 9 | 24 | | 19 | 40 | 11 | 29 | | 20 | 37 | 10 | 27 | Total | 757 | 226 | 531 | 531 tokens saved in a single session. 70% reduction. On Claude's API at Sonnet pricing, that's a small number in dollars. But if you're building on top of the API and running hundreds of sessions a day, it adds up fast. And even on claude.ai, fewer input tokens means less context noise — Claude processes cleaner signal and responds more precisely. Not every prompt needs ultra-compression. I use three modes depending on the situation: lite — strip pleasantries only, keep context ~20% reduction Use when: onboarding a new topic, first message in a session full — strip everything Claude knows, keep only the delta ~60% reduction Use when: mid-session debugging, iterating on code, quick questions ultra — compress to bare minimum signal ~70%+ reduction Use when: you know exactly what you want and don't care about polish I turned this into a Claude skill — a markdown file that instructs Claude to apply delta compression automatically, with activation/deactivation commands and intensity switching. The README has the full rule set, intensity examples, and instructions for adding it to your Claude setup. This is a small optimization. But the principle behind it is bigger: We've been writing prompts for humans. We explain, we hedge, we contextualize — because that's how we earn understanding from other people. With LLMs, that overhead is waste. The model doesn't need to be convinced you know what you're talking about. It doesn't need the social scaffolding. Just send the delta.