The claude CLI tool has rapidly become essential for power users integrating LLM workflows directly into the terminal. However, developers attempting to optimize their throughput by running parallel sessions—one for a backend migration, another for writing unit tests—often hit a hard wall. You open a new tab, run claude , and suddenly your active sessions terminate. The console spits out Request aborted or, more cryptically, a Cloudflare Error 525: SSL Handshake Failed . This isn't a network outage. It is a state management conflict inherent to how modern CLI tools handle authentication persistence. This guide details the root cause of these crashes and provides a robust shell-level implementation to isolate your sessions. The Root Cause: Race Conditions in State Files To fix the crash, we must understand the architecture of the claude CLI authentication flow. When you authenticate via claude login , the tool writes an OIDC ...
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