a207-nutrition-calc-mcp
MCP server for pediatric CKD nutrition and food calculations, enabling energy/protein targets, food nutrient lookup, substitutions, meal summaries, and drug-nutrient interaction checks.
README
a207-nutrition-calc-mcp
儿童慢性肾脏病（CKD）营养与食物计算 MCP 包，供 CKDNutri 项目的医生、营养师、家长三类智能体共用（M5 营养/食物计算器）。
依据：PRNT 2020（儿童 CKD 能量与蛋白 SDI）、Schofield 方程、腹膜透析葡萄糖吸收折算。
注意：本包不提供目标计算（原
calc_nutrition_target已去重，目标计算统一由 M3calc_prnt_targets作为唯一权威引擎）。本包定位为纯食物层（查养分/份量换算/替换/磷蛋白比/腹透葡萄糖/药食交互）。
单位口径
- 能量：kcal；蛋白/钾/磷/钠：g 或 mg（食物成分表以 mg/100g 计）；血电解质：mmol/L
- 体重：kg；身高：cm；年龄：岁（内部按月龄插值）
七个工具
| 工具 | 说明 |
|---|---|
lookup_food_nutrients |
食物营养素查询，支持份量（碗/个/掌心/克）与烹饪降钾降磷处理，返回高钾/高磷/高钠警示 |
substitute_food |
食物替换：低钾 / 低磷 / 低钠 / 低蛋白 / 等能量，优先同类食物候选 |
convert_to_household_measure |
克 ↔ 家庭量具双向换算，附家长可感知锚点（鸡蛋/掌心瘦肉/牛奶/瓷勺油/碗饭） |
sum_diet_intake |
多日饮食汇总，对比目标给出能量/蛋白达成率与钾磷钠来源排序及建议 |
calc_pnpr |
磷蛋白比（mg P/g 蛋白）计算，辅助低磷食物优选 |
calc_pd_glucose_absorption |
腹膜透析葡萄糖吸收量（按留腹时长 × 转运特性），折算 kcal |
check_drug_nutrient_interaction |
药物-营养素交互提示（磷结合剂、活性维 D、利尿剂、激素、铁剂等） |
目录结构
a207-nutrition-calc-mcp/
├── pyproject.toml
├── README.md
├── src/a207_nutrition_calc_mcp/
│ ├── __init__.py
│ ├── core.py # 7 工具门面（纯逻辑，无 MCP/pydantic 依赖）
│ ├── server.py # FastMCP >=2 服务定义（8 个 @mcp.tool）
│ ├── models.py # pydantic v2 入参模型（extra=forbid）
│ ├── constants.py # 参考表与阈值
│ ├── targets.py # 腹透葡萄糖吸收折算（目标计算已收归 M3）
│ ├── fooddb.py # 食物数据访问与分级
│ ├── measures.py # 家庭量具解析
│ ├── foods.py # 查询/替换/换算/磷蛋白比
│ ├── diary.py # 饮食汇总
│ ├── pharma.py # 药物-营养素交互
│ └── data/food_data.csv
└── tests/test_tools.py
设计约束
- 不依赖、不 import 任何其它
a207-*包（纯计算，无写权限） - 结果可解释：返回 guideline 引用与规则依据
- 仅正向/边界/超时分支齐全，错误以
{"ok": false, "error": ...}形式返回
运行与测试
# 编译（server.py/models.py 依赖 fastmcp/pydantic，仅做语法校验）
python -m py_compile src/a207_nutrition_calc_mcp/*.py
# 纯标准库自测（core 逻辑不依赖 fastmcp/pydantic，可独立运行）
python tests/test_tools.py
返回非零退出码表示存在失败用例。
启动 MCP 服务
pip install -e .
python -m a207_nutrition_calc_mcp.server
# 或
fastmcp dev src/a207_nutrition_calc_mcp/server.py
# 或（已注册 console script 后）
uvx --from . a207-nutrition-calc-mcp
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