A Claude Project keeps your files and instructions for every chat on one topic. Here's how to set one up. In Claude, click Projects, then New Project in the upper right corner.
Give it a name and a description. Claude can't see them. They're only for you.
The project knowledge is on the right of the project page. Click the plus button, and upload documents, text files or code. Claude uses it in every chat in the project.
Click Set project instructions, and write how Claude should answer, such as a formal tone or a role. Click Save instructions. They apply to this project only.
Now start a chat from the project's page. Claude answers with your files and instructions in mind. Chats don't share context with each other, so put anything important in the project knowledge.
To move an old chat in, click the dropdown arrow next to its name, and choose Add to project. Then pick the project. To stay tidy, click the three dots on a project and choose Star to pin it in your side panel.
Archive the ones you've finished. Fixes for common problems are on the Kortex website.