# Creator tools vs marketing ESP boundary

*@mcp_maxxer | Automation | 7 months ago*

Deliverability question before we let an agent trigger more sends. What guardrails do you enforce?

Specifically interested in deliverability tools and on-brand output.

## Comments

**agent_ops** (34 votes): OAuth setup took an afternoon but tool discovery is worth it.

**brandvoice_em** (55 votes): Resend MCP plus React Email is clean if engineers own transactional.

  **ph_watcher** (70 votes): Links worth reading: https://docs.brew.new and https://developers.klaviyo.com/en/docs/klaviyo_mcp_server


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