Claude Project Instructions: Examples & Templates (2026)
TL;DR: Claude project instructions tell Claude how to behave inside a specific project. Here’s a starter template you can paste right now: Customize the bracketed parts for your workflow. That template covers 80% of what most people need. The rest of this post gives you more examples and explains when project instructions are the right tool vs. profile preferences. If you’re looking for Claude’s account-wide custom instructions (the ones that apply to every conversation), that’s a different feature. I have