3.1k★by odrobnik
who-growth-charts – OpenClaw Skill
who-growth-charts is an OpenClaw Skills integration for data analytics workflows. Generate WHO child growth charts (height, weight, BMI) with percentile curves. Downloads official WHO reference data on demand. Use when users ask about child growth tracking, percentiles, or want growth charts for their kids.
Skill Snapshot
| name | who-growth-charts |
| description | Generate WHO child growth charts (height, weight, BMI) with percentile curves. Downloads official WHO reference data on demand. Use when users ask about child growth tracking, percentiles, or want growth charts for their kids. OpenClaw Skills integration. |
| owner | odrobnik |
| repository | odrobnik/who-growth-charts-skill |
| language | Markdown |
| license | MIT |
| topics | |
| security | L1 |
| install | openclaw add @odrobnik/who-growth-charts-skill |
| last updated | Feb 7, 2026 |
Maintainer
name: who-growth-charts description: Generate WHO child growth charts (height, weight, BMI) with percentile curves. Downloads official WHO reference data on demand. Use when users ask about child growth tracking, percentiles, or want growth charts for their kids. version: 1.0.0 homepage: https://www.who.int/tools/child-growth-standards metadata: {"clawdbot":{"emoji":"📈","requires":{"bins":["python3"],"python":["pandas","matplotlib","scipy","openpyxl"]}}}
Generate WHO Child Growth Standards charts with percentile curves and child data overlay.
Features
- Height-for-age (0-19 years)
- Weight-for-age (0-10 years)
- BMI-for-age (0-19 years)
- Supports boys and girls
- Downloads WHO data on demand from cdn.who.int (cached locally)
- Overlays child's actual measurements with trend line
Examples
| Height | Weight | BMI |
|---|---|---|
| <img src="examples/anna_height.png" width="250"> | <img src="examples/anna_weight.png" width="250"> | <img src="examples/anna_bmi.png" width="250"> |
Prerequisites
Install Python dependencies:
pip install pandas matplotlib scipy openpyxl
Usage
Basic Chart Generation
python3 ./scripts/growth_chart.py "Child Name" "DD.MM.YYYY" --sex F --type all
Arguments:
name: Child's name (used in chart title)birthdate: Date of birth in DD.MM.YYYY format--sex/-s:F(female) orM(male) — default: F--type/-t:height,weight,bmi, orall— default: all--data/-d: JSON file with measurement data--output/-o: Output directory for charts
With Measurement Data
Create a JSON file with height/weight measurements (heights in meters, weights in kg):
{
"heights": [ ["2024-01-15T10:00:00", 1.05] ],
"weights": [ ["2024-01-15T10:00:00", 17.5] ]
}
python3 ./scripts/growth_chart.py "Emma" "06.07.2016" --sex F --data emma_data.json --type all
Integration with Withings
Combine with withings-family skill to fetch weight data automatically:
# Get Withings weight data (assuming withings-family skill is installed)
python3 ../withings-family/scripts/withings.py emma body > /tmp/withings.json
# Parse and generate charts
# (The growth chart script handles Withings JSON format if implemented, otherwise transform it)
Output
Charts are saved as PNG files in ~/clawd/who-growth-charts/ by default (or specified output directory).
Data cache and assets are stored in ~/clawd/who-growth-charts/cache/.
name: who-growth-charts description: Generate WHO child growth charts (height, weight, BMI) with percentile curves. Downloads official WHO reference data on demand. Use when users ask about child growth tracking, percentiles, or want growth charts for their kids. version: 1.0.0 homepage: https://www.who.int/tools/child-growth-standards metadata: {"clawdbot":{"emoji":"📈","requires":{"bins":["python3"],"python":["pandas","matplotlib","scipy","openpyxl"]}}}
Generate WHO Child Growth Standards charts with percentile curves and child data overlay.
Features
- Height-for-age (0-19 years)
- Weight-for-age (0-10 years)
- BMI-for-age (0-19 years)
- Supports boys and girls
- Downloads WHO data on demand from cdn.who.int (cached locally)
- Overlays child's actual measurements with trend line
Examples
| Height | Weight | BMI |
|---|---|---|
| <img src="examples/anna_height.png" width="250"> | <img src="examples/anna_weight.png" width="250"> | <img src="examples/anna_bmi.png" width="250"> |
Prerequisites
Install Python dependencies:
pip install pandas matplotlib scipy openpyxl
Usage
Basic Chart Generation
python3 ./scripts/growth_chart.py "Child Name" "DD.MM.YYYY" --sex F --type all
Arguments:
name: Child's name (used in chart title)birthdate: Date of birth in DD.MM.YYYY format--sex/-s:F(female) orM(male) — default: F--type/-t:height,weight,bmi, orall— default: all--data/-d: JSON file with measurement data--output/-o: Output directory for charts
With Measurement Data
Create a JSON file with height/weight measurements (heights in meters, weights in kg):
{
"heights": [ ["2024-01-15T10:00:00", 1.05] ],
"weights": [ ["2024-01-15T10:00:00", 17.5] ]
}
python3 ./scripts/growth_chart.py "Emma" "06.07.2016" --sex F --data emma_data.json --type all
Integration with Withings
Combine with withings-family skill to fetch weight data automatically:
# Get Withings weight data (assuming withings-family skill is installed)
python3 ../withings-family/scripts/withings.py emma body > /tmp/withings.json
# Parse and generate charts
# (The growth chart script handles Withings JSON format if implemented, otherwise transform it)
Output
Charts are saved as PNG files in ~/clawd/who-growth-charts/ by default (or specified output directory).
Data cache and assets are stored in ~/clawd/who-growth-charts/cache/.
Permissions & Security
Security level L1: Low-risk skills with minimal permissions. Review inputs and outputs before running in production.
Requirements
Install Python dependencies: ```bash pip install pandas matplotlib scipy openpyxl ```
FAQ
How do I install who-growth-charts?
Run openclaw add @odrobnik/who-growth-charts-skill in your terminal. This installs who-growth-charts into your OpenClaw Skills catalog.
Does this skill run locally or in the cloud?
OpenClaw Skills execute locally by default. Review the SKILL.md and permissions before running any skill.
Where can I verify the source code?
The source repository is available at https://github.com/openclaw/skills/tree/main/skills/odrobnik/who-growth-charts-skill. Review commits and README documentation before installing.