Claude Code 2.1.199

Version 2.1.199 of Claude Code, Anthropic's agentic AI coding tool for working directly in a codebase across terminal, IDE, desktop, web, Slack, and related surfaces. The 2.1.199 changelog entry specifically adds stacked slash-skill invocations and fixes partial output preservation on mid-stream API errors, subagent error/partial-work reporting, Linux background-agent daemon crashes, and transient 429 retries.