Claude Code v2.1.78: StopFailure Hook Event + CLAUDE_PLUGIN_DATA Persistent Storage
Claude Code Releases·high signal
v2.1.78 (March 18) added a StopFailure hook event that fires when a turn ends due to API errors — rate limits, auth failures — receiving error type, optional error_details, and last_assistant_message, enabling automated alerting and retry orchestration. The same release added ${CLAUDE_PLUGIN_DATA}, a persistent storage path for plugins that survives plugin updates, enabling stateful plugin workflows. Response text also now streams line-by-line as generated.