I suspect that your environment variables changed when you su root.
BTW, use one line command may always works.
ANTHROPIC_BASE_URL=https://api.moonshot.ai/anthropic ANTHROPIC_AUTH_TOKEN=sk-MY-API-KEY API_TIMEOUT_MS=600000 ANTHROPIC_MODEL=kimi-k2-turbo-preview ANTHROPIC_SMALL_FAST_MODEL=kimi-k2-turbo-preview CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1 IS_SANDBOX=1 claude --dangerously-skip-permissions