Claude Code adds Vim modes, fixes MCP auth

Anthropic is aggressively polishing Claude Code's developer experience by addressing fundamental terminal interactions and integration reliability. Fixing MCP auth is critical, as unstable tool connections defeat the purpose of an autonomous CLI agent.

• –Vim visual and visual-line modes give power users native text selection workflows without leaving the assistant
• –Hooks invoking MCP tools directly opens the door for powerful automated pipelines and custom toolchains
• –Resolving multiple OAuth and macOS keychain race conditions means developers won't face unexpected "/login" prompts mid-session
• –The addition of custom themes and WSL settings inheritance shows a commitment to deep ecosystem personalization