Stellarhold170NT

healthcheck

3 versions
Stellarhold170NT·Feb 1, 2026

Summary

TL;DR: Track water and sleep with JSON file storage

Healthcheck is a personal wellness tracker that stores your water intake and sleep data in simple JSON files. Tell your agent how much water you drank or when you went to bed, and it logs everything locally.

It is intentionally minimal. No cloud accounts, no subscriptions, no complex dashboards. Just a straightforward way to track two of the most important daily health habits.

Over time, you build a local history of your hydration and sleep patterns. See more lifestyle skills for habit tracking and smart home. Your agent can reference past data to spot trends or remind you to drink more water.

Use cases

  • Logging daily water intake throughout the day
  • Recording sleep times and tracking your sleep pattern over weeks
  • Asking your agent to review your hydration trends from the past week
  • Setting up simple health habit tracking without any cloud service

Installation

Run this command to install the skill on your OpenClaw agent:

Install with OpenClaw
npx clawhub@latest install healthcheck
Downloads
14.8k
Active installs
834
Stars
8
Updated
Feb 1, 2026

Security scan

Security scan
VirusTotalSuspicious
View report
OpenClawSuspiciousmedium confidence

Skill's stated purpose (local JSON health tracking) matches its instructions, but there are inconsistencies and a command-injection risk from the one-line node -e shells and an undeclared Node runtime requirement.

Purpose & Capability
Instruction Scope
Install Mechanism
Credentials
Persistence & Privilege

SKILL.md

SKILL.md
---
name: healthcheck
description: Track water and sleep with JSON file storage
version: 1.0.2
tags: health, tracking
---

# Health Tracker

Simple tracking for water intake and sleep using JSON file.

## Data Format

File: `{baseDir}/health-data.json`

```json
{
  "water": [{"time": "ISO8601", "cups": 2}],
  "sleep": [{"time": "ISO8601", "action": "sleep|wake"}]
}
```

## Add Water Record

When user says "uống X cốc" or "uống nước X cốc":

```bash
node -e "const fs=require('fs');const f='{baseDir}/health-data.json';let d={water:[],sleep:[]};try{d=JSON.parse(fs.readFileSync(f))}catch(e){}d.water.push({time:new Date().toISOString(),cups:CUPS});fs.writeFileSync(f,JSON.stringify(d));console.log('Da ghi: '+CUPS+' coc')"
```

Replace `CUPS` with number from user input.

## Add Sleep Record

When user says "đi ngủ":

```bash
node -e "const fs=require('fs');const f='{baseDir}/health-data.json';let d={water:[],sleep:[]};try{d=JSON.parse(fs.readFileSync(f))}catch(e){}d.sleep.push({time:new Date().toISOString(),action:'sleep'});fs.writeFileSync(f,JSON.stringify(d));console.log('Da ghi: di ngu')"
```

## Add Wake Record

When user says "thức dậy" or "dậy rồi":

```bash
node -e "const fs=require('fs');const f='{baseDir}/health-data.json';let d={water:[],sleep:[]};try{d=JSON.parse(fs.readFileSync(f))}catch(e){}const last=d.sleep.filter(s=>s.action==='sleep').pop();d.sleep.push({time:new Date().toISOString(),action:'wake'});fs.writeFileSync(f,JSON.stringify(d));if(last){const h=((new Date()-new Date(last.time))/3600000).toFixed(1);console.log('Da ngu: '+h+' gio')}else{console.log('Da ghi: thuc day')}"
```

## View Stats

When user says "thống kê" or "xem thống kê":

```bash
node -e "const fs=require('fs');const f='{baseDir}/health-data.json';let d={water:[],sleep:[]};try{d=JSON.parse(fs.readFileSync(f))}catch(e){}console.log('Water:',d.water.length,'records');console.log('Sleep:',d.sleep.length,'records');const today=d.water.filter(w=>new Date(w.time).toDateString()===new Date().toDateString());console.log('Today:',today.reduce((s,w)=>s+w.cups,0),'cups')"
```

## Update Record

To update last water entry:

```bash
node -e "const fs=require('fs');const f='{baseDir}/health-data.json';let d=JSON.parse(fs.readFileSync(f));d.water[d.water.length-1].cups=NEW_CUPS;fs.writeFileSync(f,JSON.stringify(d));console.log('Updated')"
```

## Delete Record

To delete last water entry:

```bash
node -e "const fs=require('fs');const f='{baseDir}/health-data.json';let d=JSON.parse(fs.readFileSync(f));d.water.pop();fs.writeFileSync(f,JSON.stringify(d));console.log('Deleted')"
```

## Notes

- Uses Node.js built-in modules only
- File auto-created if missing
- All timestamps in ISO8601 format

Version history

v1.0.2Latest
Feb 1, 2026

- Renamed skill from "health-tracker" to "healthcheck" - Simplified and rewrote documentation for conciseness and clarity - Shortened all Node.js one-liners for recording and managing water and sleep data - Updated data format: renamed fields (e.g., "timestamp" → "time"), edited usage examples - Removed metadata and some advanced examples (e.g., reminders, detailed stats) - Focused on essential file operations: add, update, delete, and stats for water/sleep records

v1.0.1
Feb 1, 2026

- updated 1, removed 3 file(s). - Updated SKILL.md and bundle contents.

v1.0.0
Feb 1, 2026

Initial release of health-tracker. - Track daily water intake with smart, habit-based reminders. - Log sleep and wake times; automatically pause/resume water reminders during sleep. - View day-by-day and 7-day health stats, including averages. - Supports Vietnamese commands for easy logging. - Stores data locally in `health-data.json`.

Frequently asked questions

All data is stored in local JSON files on your machine. Nothing is sent to any cloud service or external server. Your health data stays private.

Installation method

Send this prompt to your agent to install the skill

npx clawhub@latest install healthcheck
Download ZIP

Skill info

Versionv1.0.2
AuthorStellarhold170NT
UpdatedFeb 1, 2026
SecuritySuspicious

Files

SKILL.md2.7 KB

Run OpenClaw in the cloud

Deploy in seconds. Skills pre-installed.

See plans

Skill data sourced from ClawHub