npx claudepluginhub hummer98/using-cmux --plugin using-cmuxDefined inline in plugin.json manifest
if [ -n "$CMUX_SURFACE_ID" ] && [ -z "$CMUX_NO_RENAME_TAB" ]; then REF=$(cmux identify | jq -r '.caller.surface_ref'); NUM=$(echo "$REF" | cut -d: -f2); cmux rename-tab --surface "$REF" "[$NUM] Claude Code"; fiRuns Python script detect_mcp_prefix.py on SessionStart events matching startup, resume, clear, or compact to detect MCP prefix.
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