{"name":"grass_seed","title":"Grass Seed Calculator","category":"garden","description":"Grass seed needed for an area, for a new lawn or overseeding — pounds of seed and 50 lb bag count, with a new-vs-overseed comparison.","price_usd":0.001,"input_schema":{"type":"object","properties":{"area_sqft":{"type":"number","description":"Area in square feet"},"mode":{"type":"string","description":"'new' or 'overseed' (default new)"},"rate_lb_per_1000":{"type":"number","description":"Optional explicit seeding rate (lb per 1,000 sq ft)"}},"additionalProperties":false,"required":["area_sqft"]}}