apple-health-analyst

中文文档

Analyze Apple Health export data locally, generating complementary health and multi-sport training reports with cross-metric reasoning, long-term trends, and offline HTML output.

Not a data dashboard — you can already see the data on your phone. This tool places records in personal long-term context: Do sleep and recovery metrics move together? Is schedule regularity associated with HRV in the available paired samples? Does training load have enough recovery support?

Fully synthetic samples (no real person’s data): Health (EN) · Training (EN) · 健康报告 · 运动报告

Features

• Cross-metric pattern analysis — Paired sleep-HRV samples, training-recovery support, and schedule-regularity trends, with recorded association kept distinct from causation
• Multi-sport trend analysis — Rank and analyze the sports actually present in the export, from walking and running to strength, cycling, boxing, swimming, yoga, and more
• Dedicated training report — Describe training state, recovery support, load distribution, and sport-specific trends using a 42-day load baseline (CTL), 7-day recent load (ATL), and their load balance (TSB). These MET-minute estimates are not direct measures of fitness, fatigue, form, or readiness
• Behavioral pattern detection — Weekend warrior, night owl drift, sleep compensation, recovery deficit
• No false-precision health score — Avoid arbitrarily combining heterogeneous sleep, recovery, and activity records; show personal trends, sample coverage, and data gaps directly
• Bilingual — Automatically generates Chinese or English reports based on user language
• Privacy-conscious pipeline — Raw ZIP/XML parsing and rendering stay local with no telemetry. If a hosted AI model writes the narrative, the structured JSON may be processed by that provider; see PRIVACY.md
• Offline HTML report — Single file with inline CSS + SVG charts, just double-click to open
• Readable long-range charts — Each chart uses one daily, weekly, or monthly resolution chosen from its full time span, with real-time ticks and density-aware markers

Exporting Apple Health Data

1. Open the Health app on your iPhone
2. Tap your profile picture (top right)
3. Scroll to the bottom and tap Export All Health Data
4. Wait for the export to finish (may take a few minutes for large datasets), then choose Save to Files or AirDrop to your computer
5. The resulting Export.zip is the input file for this tool

Official exports may contain multiple XML files. The main analysis input is the XML whose root element is HealthData; export_cda.xml / ClinicalDocument is auxiliary only. The main XML filename is not fixed, may be localized (for example 导出.xml), and some ZIP tools may display that filename as mojibake.

Quick Start

Install the skill with one command (works with Claude Code, Codex, Cursor, and 40+ agents):

npx skills add RuochenLyu/apple-health-analyst

Then chat with your agent:

Analyze my Apple Health export at /path/to/export.zip

By default you get both reports — a health report and a training report — rendered into the same output/ folder and cross-linked via the topbar. If you only want one, say so:

Only generate the health report
Only generate the training report
Only generate the training report and prioritize boxing

Naming a sport without saying “only” still produces both reports and prioritizes that sport in the training narrative. Boxing is an example, not a special mode.

The skill activates automatically when you mention Apple Health analysis. You can also invoke it explicitly — /apple-health-analyst in Claude Code, or $apple-health-analyst in Codex.

The agent automatically completes the full prepare → LLM narrative → render pipeline. The two HTMLs (report.html and training.report.html) are cross-linked via a topbar button, so you can jump between them.

Note: The package provides a standalone CLI for deterministic prepare and render steps. The narrative JSON still requires an AI agent or a compatible manually authored file.

Skill configuration is at .agents/skills/apple-health-analyst/, including role definition, analysis framework, and narrative schema.

Metrics Covered

Module	Metrics
Sleep	Duration, Deep/REM/Core stage %, Bedtime/Wake time, Regularity
Recovery	Resting HR, HRV, Blood Oxygen, Respiratory Rate, VO2 Max
Activity	Active Energy, Exercise Minutes, Stand Hours, Workout Records, Per-workout-type trends
Body Composition	Weight, Body Fat %

CLI

Commands used under the hood by the Codex Skill. Usually no need to run manually.

# 1. prepare: Parse ZIP, generate structured data (--lang en for English, --lang zh for Chinese)
#    Optional: --top-sports N to cap the training-report sport list (default 5).
#    Optional: --from/--to use strict YYYY-MM-DD analysis boundaries.
npx apple-health-analyst prepare /path/to/Export.zip --lang en --out ./output
# Outputs summary.json + insights.json

# 2. (Codex reads insights.json and generates the matching narrative JSON)

# 3a. render health report (default)
#    Add --with-cross-link when you also plan to render the training report
#    into the same --out directory (it lights up the topbar link). Omit it on
#    single-report runs so the HTML doesn't link to a file you won't generate.
npx apple-health-analyst render \
  --insights ./output/insights.json \
  --narrative ./output/report.llm.json \
  --with-cross-link \
  --out ./output
# Outputs report.html + report.md + report.llm.json

# 3b. render training report
npx apple-health-analyst render \
  --type training \
  --insights ./output/insights.json \
  --narrative ./output/training.report.llm.json \
  --with-cross-link \
  --out ./output
# Outputs training.report.html + training.report.md + training.report.llm.json

Limitations

• Does not provide medical diagnoses or treatment recommendations
• Does not analyze ECG waveforms or GPS routes (counts only)
• Step count and distance are not merged across devices

Development

Requires Node.js 22 or newer. Node.js 24 is the recommended local runtime.

npm run dev -- prepare /path/to/Export.zip --lang en --out ./output  # Dev mode (tsx, no build needed)
npm run build   # Compile
npm test        # Test
npm run check   # Clean build + full test suite
npm run pack:check  # Verify the publish tarball contains a runnable CLI
npm run demo:prepare  # Regenerate deterministic synthetic demo insights
npm run docs:build    # Validate and render the bilingual public demo

Open source

See CONTRIBUTING.md before sending a change, especially the rule against committing real health data. Security issues should be reported privately according to SECURITY.md. Release notes are kept in CHANGELOG.md.