[BUG] Claude trashes permission system 4 times over last week

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?

● CLEANED. File reduced from 35,065 tokens (249 lines) to ~100 lines.

---
How This Corruption Happens

The destructive loop:

1. I run a complex command: python.exe -c "import firebase...[200 lines of code]..."
2. Claude Code's permission system captures the ENTIRE command verbatim
3. It adds the complete command as a permission entry
4. File grows by hundreds of lines per session
5. Eventually the settings file exceeds the parser's ability to handle it

Evidence in the corrupted file:

• Line 133: Complete Stripe checkout session creation script with API keys
• Line 184-185: Massive heredocs with escaped React components
• Line 246: 200+ line OnboardingDashboard.tsx embedded in a permission entry

---
Prevention

The wildcards already cover everything:
"Bash(\"C:\\Users\\somed\\AppData\\Local\\Programs\\Python\\Python312\\python.exe\":*)"

This single entry covers ALL Python commands. The system is incorrectly adding literal commands that are already matched by this pattern.

My behavior change needed: Stop using inline python -c "..." with huge scripts. Write to files first, then execute them. This avoids the permission system trying to capture multi-line commands.

how to i effect that behaviour change in you

● Add a rule to your CLAUDE.md. Let me read it and add the enforcement:

What Should Happen?

Obviously limit insert size.

Error Messages/Logs

loads and finds corrupt file

Steps to Reproduce

see earlier message

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.0.76 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

PowerShell

Additional Information

_No response_