[BUG] system-reminder injections for modified files have no size cap, injecting 695-line files in full

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?

system-reminder injections for modified files have no size cap, injecting 695-line files in full

What Should Happen?

There should be a size cap or some other guardrail against this behavior, like not monitoring large static files unless needed.

Error Messages/Logs

Steps to Reproduce

N/A, just happens.

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.49

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_