How to Save Token Usage in Claude Code: 10 Practical Tips

Claude Code is a powerful AI coding assistant, but long sessions can burn through tokens fast. More tokens mean higher costs and reaching usage limits sooner. They can also make responses slower and less focused. The good news is that a few habits can cut your token usage in Claude Code a lot without slowing you down.

Why token usage grows in Claude Code

Every message you send includes the whole conversation so far. That covers your earlier prompts, every file Claude read, command output and its own replies. Context builds up quickly, so the twentieth message in a session costs far more than the first. Saving tokens is mostly about keeping the context small and relevant.

1. Use /clear between unrelated tasks

Finished a bug fix and moving on to a new feature? Run /clear. Old context doesn’t help the new task, and you’d pay for it again on every message. This is the simplest and most effective habit.

2. Compact long sessions with /compact

When you need to continue a task but the history is long, run /compact. Claude replaces the conversation with a short summary. You can tell it what to keep:

3. Check what is using your context

Run /context to see what fills the context window: system tools, MCP servers, memory files and messages. Run /cost to see token usage for the current session. You can’t reduce what you don’t measure.

4. Keep CLAUDE.md short

CLAUDE.md loads at the start of every session, so every line in it costs tokens every time. Keep only the rules Claude really needs, like build commands, conventions and key constraints. Move long documentation into separate files and point to them.

5. Point Claude to the exact files

“Fix the login bug” makes Claude search the codebase. “Fix the redirect in @src/auth/login.php after a failed password” goes straight to the right file. Naming specific files with @ saves search calls and file reads.

6. Paste only the relevant output

Don’t paste a 2,000-line log. Paste the error and the few lines around it. The same goes for test output: run the single failing test instead of the whole suite.

7. Choose the right model for the job

Not every task needs the most powerful model. Use /model to switch to a lighter, cheaper model for renames, small edits and simple questions. Keep the top model for architecture, tricky debugging and large refactors.

8. Plan before editing

For bigger changes, use Plan mode (Shift+Tab) so Claude proposes an approach before it writes any code. Fixing a plan costs a few tokens. Undoing a wrong implementation costs many.

9. Disable MCP servers you don’t use

Each connected MCP server adds its tool definitions to your context. Use /mcp to review them and turn off the ones you don’t need for the current project.

10. Stop Claude early when it drifts

If Claude heads in the wrong direction, press Esc to interrupt it right away instead of letting it finish. Then correct course with a clear instruction. Every extra step down the wrong path adds tokens you’ll pay for again.

Quick reference

FAQ

Does a longer conversation really cost more?

Yes. Each new message includes the earlier context, so cost per message grows as the session gets longer.

Will /clear delete my code changes?

No. It only resets the conversation. Your files stay as they are.

Is /compact better than /clear?

Use /compact to continue the same task with less history. Use /clear when you’re starting something unrelated.

Conclusion

Saving token usage in Claude Code isn’t about doing less. It’s about giving Claude only what it needs. Clear context often, be specific and match the model to the task. You’ll spend less, reach limits less often and get sharper answers.