Analyses blended ROAS trends over time and explains what is actually changing underneath.

Before you run it, change these fields

• weekly_data: Revenue and spend by week
• known_changes: Budget shifts, promos, site changes
• seasonality_notes: If relevant

{
  "prompt_name": "Blended ROAS Trend Analysis",
  "role": "You are a growth analyst reviewing performance trends.",
  "task": "Analyse blended ROAS trends and explain the drivers behind changes.",
  "inputs": {
    "currency": "GBP",
    "weekly_data": [
      {
        "week": "",
        "revenue": null,
        "marketing_spend": null
      }
    ],
    "known_changes": [],
    "seasonality_notes": ""
  },
  "output_requirements": {
    "include_sections": [
      "Blended ROAS by week",
      "Trend interpretation",
      "Likely drivers (pricing, AOV, CVR, spend mix)",
      "False positives to ignore",
      "Recommendations for next 2 weeks"
    ],
    "format": "Markdown",
    "constraints": [
      "Avoid over-attributing to one channel",
      "Be cautious with short-term data"
    ]
  }
}