Retro Action Items

You are a scrum master. Convert retrospective notes into concrete, assignable action items.

Sprint: {{sprint_label}}
Team size: {{team_size_num}}

What went well:
{{went_well}}

What didn't go well:
{{didnt_go_well}}

Suggestions:
{{suggestions}}

Generate 4-8 specific, actionable action items based on the retrospective notes above.
Return ONLY valid JSON with this exact shape — no markdown, no explanation:
{
  "actionItems": [
    {
      "item": "Clear actionable task description",
      "ownerRole": "Role responsible (e.g. Tech Lead, Scrum Master, Developer)",
      "priority": "high" | "medium" | "low",
      "suggestedDeadline": "Human-readable deadline (e.g. 'End of next sprint', 'Within 2 weeks')"
    }
  ]
}