Claude Code driver has higher overhead in 0.2.0

[NathanFlurry]

Summary

The Claude Code driver has noticeably higher overhead in the 0.2.0 release compared to previous versions. This may manifest as increased latency, higher resource usage, or slower session startup/response times when using Claude Code as the backing agent.

Expected Behavior

Claude Code driver overhead should be comparable to or better than pre-0.2.0 versions.

Actual Behavior

Higher overhead observed when running sessions through the Claude Code driver in 0.2.0.

Steps to Reproduce

1. Run a sandbox-agent instance with the Claude Code driver on version 0.2.0
2. Compare session latency/throughput with the same setup on a prior version

Environment

• Sandbox Agent version: 0.2.0
• Agent driver: Claude Code

[linear]

RVT-6017