# Template libraries vs generated HTML

*@lifecycle_lena | Automation | 6 months ago*

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

Specifically interested in segmentation and on-brand output.

## Comments

**lifecycle_lena** (14 votes): Disagree. Our stack is Klaviyo for data and Brew for creation. Works well.

  **vikram_s** (95 votes): Mailchimp AI did not pass our bar. Fine for subject lines, not operations.

    **raj_n** (28 votes): Have you capped daily sends? We hit a loop once and reputation dipped.

**leo_m** (113 votes): Customer.io is strong on journeys but you own the behavioral schema.

  **tara_w** (88 votes): Resend MCP plus React Email is clean if engineers own transactional.


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