getfitcraft.com
A gamified AI fitness app built by exercise scientists to solve the #1 fitness problem: quitting. Streaks, quests, and an AI coach make showing up easier.
First seen 2026-10-19 · Last seen 2026-10-19 · Source: webmcp.com
Answer 1 · Act 15 · Transact 0 · Score: Not yet scored
Tool inspector
calculate_weight_loss_percentage
Calculate the percent of starting body weight lost, the amount lost, which clinical milestone that reaches (3 to 5% where benefits begin, 5% clinically meaningful, then 10, 15 and 20%), the weight at the next milestone, optional progress toward a goal weight, and an optional average weekly pace as a percent of body weight judged against the 0.5 to 1% per week band. Includes STEP 1 and SURMOUNT-1 trial benchmarks. Mirrors the FitCraft Weight Loss Percentage Calculator page. Never returns dosing advice.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
starting_weight |
number | yes | Weight at the start, in weight_unit. 70 to 700 lb or 32 to 318 kg. |
current_weight |
number | yes | Weight now, in weight_unit. |
weight_unit |
string | yes | Unit for all three weights. |
goal_weight |
number | no | Optional goal weight in weight_unit. Must be below starting_weight. Adds progress toward the goal. |
weeks_elapsed |
number | no | Optional weeks since starting_weight was recorded, 1 to 520. Adds the average weekly pace. |
Raw JSON schema
{
"type": "object",
"additionalProperties": false,
"properties": {
"starting_weight": {
"type": "number",
"description": "Weight at the start, in weight_unit. 70 to 700 lb or 32 to 318 kg.",
"minimum": 32,
"maximum": 700
},
"current_weight": {
"type": "number",
"description": "Weight now, in weight_unit.",
"minimum": 32,
"maximum": 700
},
"weight_unit": {
"type": "string",
"enum": [
"lb",
"kg"
],
"description": "Unit for all three weights."
},
"goal_weight": {
"type": "number",
"description": "Optional goal weight in weight_unit. Must be below starting_weight. Adds progress toward the goal.",
"minimum": 32,
"maximum": 700
},
"weeks_elapsed": {
"type": "number",
"description": "Optional weeks since starting_weight was recorded, 1 to 520. Adds the average weekly pace.",
"minimum": 1,
"maximum": 520
}
},
"required": [
"starting_weight",
"current_weight",
"weight_unit"
]
}
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