Claude Code v2.1.145: `claude agents --json`, Enhanced OTEL Spans, Permission Bypass Fix
Anthropic
Claude Code v2.1.145 (May 19) adds `claude agents --json` for machine-readable session listing (useful for tmux/status bars), enhanced OTEL spans with agent_id/parent_agent_id for multi-agent tracing, fixed a permission-prompt bypass for bare Bash variable assignments, and resolved an infinite loop with skills using `context: fork`.
Why it matters
Machine-readable agent listing and structured OTEL spans improve integration with external monitoring and orchestration tooling for multi-agent deployments
Importance: 2/5
claude agents --json and OTEL agent_id/parent spans make Claude Code multi-agent deployments monitorable from external tools