[BUG] Scrolling up in Linux terminal mangles the lines

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?

When I scroll up in Terminator on Linux the lines are mangled up

What Should Happen?

Lines should not be mangled up

Error Messages/Logs

Steps to Reproduce

1. Use claude in Terminator on Linux
2. prompt
3. scroll up a few screens

Claude Model

Opus

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

2.1.177 (Claude Code)

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

Other

Additional Information

● Health investigation complete, and the three skills now carry one-shot recipes for this. Here's the verdict.

  Post-rollout health — PR #10230 (DEV/NST/ALP/AGOV)

  No regression from the rollout. All bumped components green.

  ┌───────────────────────────────────────────────────┬───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
  │                       Check                       │                                                                                              Result   │
  ├───────────────────────────────────────────────────┼───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
  │ Controller error-rate (markAsFailed +             │ Flat across the 19:00 boundary — no step-up. alp ~2000/2h, nst ~700/2h are chronic baselines; top failures are the usual flip-floppers (RecoveryVault, ManagedRedisAccess, ServiceAccess,   │
  │ STATUS_CODE_ERROR)                                │ PostgreSQL, PrivateEndpoint…), nothing new   │
  ├───────────────────────────────────────────────────┼───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
  │ ESO (external-secrets 2.6.0)                      │ ✅ 0 errors in logs, 0 warning events — green   │
  ├───────────────────────────────────────────────────┼───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
  │ Flux Kustomizations                               │ ✅ 0 errors, reconciling normally   │
  ├───────────────────────────────────────────────────┼───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
  │ Crossplane (2.3.2)                                │ ✅ 0 errors, 0 warnings   │
      159 +| extend ns = tostring(ResourceAttributes["k8s.namespace.name"]),                                                                                                                                                                    
      160 +         cl = tostring(ResourceAttributes["k8s.cluster.name"])                                                                                                                                                                       
      161 +| where ns in ("external-secrets","flux-system","crossplane-system")                                                                                                                                                                 
      162 +| where SeverityText in ("ERROR","Error","error")                                                                                                                                                                                    
      163 +| summarize c=count(), sample=take_any(Body) by cl, ns                                                                                                                                                                               
      164 +| order by c desc | take 20                                                                                                                                                                                                          
      165 +```                                                                                                                                                                                                                                  
      166 +                                                                                                                                                                                                                                     
      167 +### Ingestion gotcha (verified 2026-06-14)                                                                                                                                                                                           
      168 +                                                                                                                                                                                                                                     
      169 +`alp` does **not** ship `external-secrets` / `flux-system` / `crossplane-system` logs to OTELLogs (zero `Total` for those namespaces), while `dev`/`nst`/`agov`/`local` do. For alp component health, fall back to the `kube-events` 
          +post-deploy sweep (KubeEvents covers alp). Flux is low-volume (~60 log lines/2h/cluster) — a low `Total` there is normal, not a gap.                                                                                                 
      170 +                                                                                                                                                                                                                                     
      171  ## Notes
      172  
      173  - The `azuredataexplorerexporter` writes JSON values into the `dynamic` columns. Always wrap field access in `tostring(...)` when filtering or grouping by string keys, otherwise the implicit type is `dynamic` and equality won't m
           atch.

● Health investigation complete, and the three skills now carry one-shot recipes for this. Here's the verdict.

<img width="2491" height="1122" alt="Image" src="https://github.com/user-attachments/assets/7bd582bb-502f-4482-9d75-94a6f17b5246" />