Skills
Claude Code 2.1.239 adds /claude-api upgrade for the anthropic 0.x to 1.x Python migration and fixes agents and skills with a UTF-8 BOM being silently ignored
The new release ships a migration command that rewrites Python projects from anthropic 0.x to 1.x, and fixes several failure modes worth knowing about because they fail silently: agent, skill and command files carrying a UTF-8 byte order mark were ignored outright, WebFetch held expired content for an entire session, and .worktreeinclude patterns beginning with **/ matched nothing. ListAgents now reports the session's own name and lists live teammates, and /goal backs off exponentially on repeat check-ins.
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