Claude stops mid-task when using Desktop Commander

Troubleshooting Guide: Addressing Mid-Task Interruptions with Claude Sonnet 4.5 and Desktop Commander

If you’re utilizing Claude Sonnet 4.5, particularly via the Desktop Commander MCP tool, and encounter unexpected interruptions during complex file operations, you’re not alone. Many users on the Max plan have reported similar issues where Claude halts mid-process without warning, leading to frustration and lost work. This comprehensive article aims to shed light on this problem, analyze potential causes, and offer practical solutions to optimize your experience.

Understanding the Issue

Symptom Overview:

• Initiating a multi-file project or complex application creation with Desktop Commander works initially.
• Partway through the task, Claude unexpectedly stops and reverts to the prompt.
• Previous work on the task vanishes, with no error messages or warnings.
• Notably, simpler tasks or those executed via Artifacts function smoothly.

Key Observations:

• The interruption predominantly affects complex, multi-file projects.
• Tasks involving straightforward code generation via Artifacts do not encounter this problem.
• Performance appears degraded over time; Claude seems slower, especially during repetitive or planning-intensive steps.
• The issue has been present for over a month, despite prior stable performance.

Potential Causes

While not definitive, some factors could contribute to this behavior:

• Token Limitations: Large, multi-step tasks may exceed token boundaries, causing incomplete processing or termination.
• Resource Constraints: Increased planning complexity could lead to timeouts or memory issues.
• Software Updates: Changes to Claude or Desktop Commander updates over the last month might have introduced compatibility or performance regressions.
• Session or Cache Issues: Residual data or session artifacts may interfere with ongoing tasks.

What Has Been Tried

• Segmentation of Projects: Breaking projects into smaller stages can bypass the stopping point, though longer stages still trigger interruptions.
• Reinstallation: Uninstalling and reinstalling Desktop Commander and Claude Desktop did not resolve the issue.
• Speed Considerations: Noticing slower response times, possibly linked to increased internal processing or token counting.

Recommendations & Next Steps

1. Stay Within Token Limits: Break down complex projects into smaller segments to reduce token consumption and processing demands.
2. Monitor Performance: Observe if certain project sizes or types consistently trigger stops; this may help identify thresholds.
3. Update & Compatibility Checks: Ensure both Claude and Desktop Commander are running the latest versions compatible with your system.