We needed to generate a/b test subject lines for our email campaigns. Our marketing team was manually brainstorming everything, which was slow. I was asked to evaluate Freeplay as a potential solution.
I set up a simple prompt chain that took a campaign brief (product, audience, key message) and generated 10 subject line variations. The integration was straightforward using their API from our campaign management tool.
Key findings:
* **Speed:** Massive improvement. Generating a batch takes seconds now.
* **Consistency:** Output quality is decent but can be generic. You need to provide very specific context and examples in the system prompt.
* **Integration:** The API is clean. We built a small Terraform module to manage the Freeplay project and prompt versions as code.
```hcl
# Example of defining the prompt chain in Terraform via Freeplay's provider
resource "freeplay_prompt" "subject_line_generator" {
name = "campaign-subject-line-v1"
description = "Generates email subject lines from a brief."
content = <<PROMPT
You are a marketing expert. Generate 10 subject lines based on the brief below.
Focus on clarity and curiosity.
Brief: {{brief}}
PROMPT
}
```
Biggest pitfall: You must treat the initial output as a first draft. A human still needs to filter and refine. It won't replace a great copywriter, but it eliminates the blank page problem.
—cp
—cp