🧠 Where Should Your Context Live?

You start a conversation in Claude. You explain what you are working on, upload a few files and gradually add more information as the work progresses.

A few days later, that same chat contains your original brief, three drafts, several corrections, reference documents and dozens of messages. Eventually, Claude struggles to keep everything straight, or you reach a context limit and have to start again.

The instinct is often to move everything into Claude Code because it can work with files differently. But for most beginners, that adds complexity they do not need.

The better solution is to decide where your context should live before the work gets complicated.

Claude gives you three useful options: regular Chat, Projects and Claude Code. Each is suited to a different type of work.

Every Claude conversation has a context window.

Think of the context window as Claude’s working space. It contains the information Claude can actively consider while responding to you: your instructions, previous messages, relevant files and other information needed for the task. But that working space has a limit.

So imagine you use one Claude chat to run an entire client project. Over several weeks, you upload briefs, paste meeting notes, revise drafts and continue adding instructions. The conversation keeps growing, but Claude still has to work within the context available to the model.

This is where people often conclude that Claude has a memory problem. But Claude has introduced memory that carries useful information across conversations, while paid users can also ask Claude to search previous chats.

Claude Projects on the other hand have their own separate memory and context as well. So you no longer need to keep one enormous conversation alive simply because you are worried Claude will know nothing when you start a new one.

A better question you should ask is:

Where should the information Claude needs repeatedly live?

For most people, the decision looks like this:

There is an easy way to decide.

Let’s look at each one:

You do not need a Project every time you ask Claude something, and you definitely do not need to set up Claude Code because your task happens to involve a document. Say you’ve written a landing page and want feedback on it once. Uploading that document to a normal Claude chat makes perfect sense.

You could ask:

I’m attaching a draft landing page. Review it for clarity and identify the three places where a first-time reader is most likely to get confused. Suggest a rewrite for each.

Claude uses the document for that conversation, gives you the answer and you move on.

Other usecases include: brainstorming ideas, explaining a concept, summarising a document, rewriting a paragraph or helping you think through a decision.

A Claude Project gives a piece of ongoing work its own dedicated space. You can add reference material and instructions that Claude can use across different conversations within that Project.

For example, let’s say you are applying for jobs. Instead of maintaining one long chat called “Job Search” and continuing it for three months, you could create a Project containing your resume, a document listing your achievements, examples of previous work or portfolio, and your notes about the roles you want.

Now every time you want to apply for a new job you can start a fresh chat within that project.

Projects can also handle considerably more reference material than they once could. When your Project knowledge becomes large, Claude can use retrieval-augmented generation, or RAG, to search the knowledge base and retrieve relevant material rather than putting every document into the active context at once. Anthropic says this can increase Project knowledge capacity by up to 10x.

Claude Code becomes useful when the files themselves are the workspace. This is an important distinction.

Imagine you are maintaining a website. Your computer already has a folder containing the site’s code, copy, configuration files and assets. You could repeatedly upload those files into Claude Chat. But every time something changes, the versions in your conversation become outdated.

Claude Code can instead work directly with the folder on your computer. And because Claude’s desktop app now includes a graphical Code interface, so you do not necessarily need to work through a terminal. In Local mode, you select a folder and Claude Code can inspect and work with files inside it.

You might ask:

Review the files in this project and find where the homepage hero copy is defined. Tell me which file you plan to edit and show me the proposed wording before making the change.

Claude can inspect the folder, find the relevant file and work from the current version.

When you are unsure, use this framework:

Remember that more powerful does not automatically imply more appropriate