Claude Code v2.1.212-214: Artifacts with Live MCP Data, /fork as Parallel Session, and EndConversation Tool

What's new

• Artifacts with live MCP data (Week 29): Published artifacts now call MCP connectors live on each view — live dashboards instead of static snapshots. Public sharing links and editor roles for Team/Enterprise plans also added.
• /fork redesign (v2.1.212): /fork now copies the conversation into a new background session (visible in claude agents) while you keep working in the original. Old sub-agent fork behavior moves to /subtask.
• EndConversation tool (v2.1.214): Claude can now actively end sessions with highly abusive users or jailbreak attempts — the first explicit safety mechanism at the tool level, not just the model level.
• Session budgets: Max 200 WebSearch calls and 200 subagent spawns per session; /clear resets both budgets.
• MCP auto-background: Tool calls running longer than 2 minutes auto-move to background (configurable).
• Security fixes (v2.1.214): Three Bash permission-check bypass bugs fixed — Windows PowerShell 5.1, file-descriptor redirects, commands over 10,000 characters.

Why it matters

Artifacts with live MCP data transform shared Claude Code outputs into live tools rather than static snapshots. EndConversation is the first explicit protection mechanism at the tool level, not just the model level.

How to try it

• MCP artifacts: Team/Enterprise; enable via Public sharing in artifact settings.
• /fork: available from v2.1.212; /subtask replaces old fork sub-agent behavior.