---
title: "Does Claude prompt caching work well when only the project context changes?"  
description: "Does Claude prompt caching work well when only the project context changes?"  
author: "Lea Hartmann"  
published: 2026-10-21  
updated: 2026-10-21  
canonical: https://www.mindstick.com/forum/162636/does-claude-prompt-caching-work-well-when-only-the-project-context-changes  
category: "Claude API"  
tags: ["Claude", "Prompt Caching", "AI Development"]  
reading_time: 1 minute  

---

# Does Claude prompt caching work well when only the project context changes?

I’m testing prompt caching with Claude for a workflow that reuses a long static system prompt, then adds different project notes for each request. The shared instructions barely change, but the project context does.

For people using Claude this way, does the cache still provide a noticeable benefit? I’m trying to understand how to separate the **static system prompt** from **dynamic project context** without making the prompt harder to maintain or sending stale information.


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Original Source: https://www.mindstick.com/forum/162636/does-claude-prompt-caching-work-well-when-only-the-project-context-changes

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