[BUG]

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

A simple 50 line CSS code change on one file used 67% of my usage while the conext ran up to 47% for messages that were no longer that a few sentenes across 20 simple messages and one simple task, this isn't okay and Id hope for the sake of your users and subscriptions you reset this or compensate in someway.

Uttery ridiculous

What Should Happen?

It should not consume that many tokens for something so simple ive seen it build entire sites on 15% usage what a joke honestly

Error Messages/Logs

Steps to Reproduce

use it normally or get it to do a simple css change.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

Sonnet 4.6 low effort

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

WSL (Windows Subsystem for Linux)

Additional Information

_No response_