[BUG] (minor) List output suddenly often misses Line breaks

Environment

• Platform (select one):
• [x] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: 0.2.126 (Claude Code)
• Operating System: macOS 15.5
• Terminal: vsCode 1.100.2 Terminal, zsh 5.9

Bug Description

When outputting lists of what it did, claude suddenly does seem to randomly forget new line characters. It sometimes uses them and misses only one or two, sometimes it misses them all

Steps to Reproduce

unsure, it keeps deciding to create those lists itself at some point. Maybe a matter of fixing the system prompt that suggests these list.

Expected Behavior

Proper lists with new lines ;-)

Actual Behavior

Example:

  ✅ Arguments support - <$ARGUMENTS> for discussion starter✅
  Tone-focused - emphasizes conversational but technical
  approach✅ Practical outcomes - suggests potential amendments
  to docs/requirements✅ Context-aware -
  balances technical debt vs delivery needs