What is vytalLink CLAUDE.md?

Repository instructions for vytalLink, a health-data platform whose mobile app reads wearable data and exposes it to AI assistants through an MCP-compatible interface. They explain the monorepo layout and development commands.

Running Flutter builds and tests, working on the Node.js MCP proxy, maintaining agent examples, and following shared repository guidelines.

They help agents understand how the separate apps, servers, examples, and shared documents fit together. A monorepo is one repository containing multiple related projects.

How xmartlabs/vytalLink configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to xmartlabs/vytalLink. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/xmartlabs/vytalLink/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/xmartlabs/vytalLink

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/xmartlabs/vytallink/claude-md/github.svg)](https://agentmods.dev/instructions/xmartlabs/vytallink/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/xmartlabs/vytallink/claude-md"><img src="https://agentmods.dev/badge/instructions/xmartlabs/vytallink/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/xmartlabs/vytallink/claude-md"><img src="https://agentmods.dev/badge/instructions/xmartlabs/vytallink/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,440 This file is loaded in full into every session.

When invoked 1,440 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.01440	$0.01440
Opus 5.5	$0.00576	$0.00576
Sonnet 5.5	$0.00288	$0.00288
Haiku 4.5	$0.00144	$0.00144

Measured 2mo ago against content hash 960626ffe184, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vytalLink CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

CLAUDE.md · 150 lines

How it starts

The opening of the file, as written. The whole thing — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

VytalLink is a health data platform. The mobile app reads wearable data from Apple HealthKit and Google Health Connect, then exposes it through an MCP-compatible interface for AI assistants.

Monorepo Layout

mobile/ - Flutter app with embedded MCP server and design system in design_system/
mcp-server/ - Standalone Node.js MCP proxy published as @xmartlabs/vytallink-mcp-server
examples/ - TypeScript (athletic-analyst-ts/) and Python (athletic-analyst-py/) CLI agents
landing/ - Static marketing site hosted on Firebase
docs/ - Shared guidelines (CODE_STANDARDS.md, CONSOLIDATED_GUIDELINES.md, and more)

Build and Development Commands

Mobile (Flutter)

cd mobile && fvm flutter pub get                # install dependencies (Flutter pinned in .fvmrc)
cd mobile && fvm flutter run                    # launch on active device
cd mobile && fvm flutter test                   # run all tests
cd mobile && fvm flutter test <path>            # run a single test file
cd mobile && ./scripts/checks.sh                # format + analyze + metrics (mandatory before PR)
cd mobile && ./scripts/integration_test.sh      # MCP end-to-end integration tests
cd mobile && ./scripts/clean_up.sh              # clean, refetch deps, regenerate build_runner + l10n

Always use fvm for Flutter/Dart commands.

MCP Server (Node.js)

cd mcp-server && npm install && npm start       # start server
cd mcp-server && npm run install-global         # expose CLI globally
cd mcp-server && npm run mcpb:package           # build Claude Desktop bundle

Agent Examples

# TypeScript
cd examples/athletic-analyst-ts && npm install && npm run build
npx tsx src/index.ts

# Python
cd examples/athletic-analyst-py && python3 -m venv .venv && .venv/bin/pip install -r requirements.txt
python -m src.main --mode <mode>

# Monorepo helpers
cd examples && ./scripts/repo.sh help
cd examples && python3 -m unittest tests/test_run_tests.py

Read the full file on GitHub · 150 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2mo ago First seen · 150 lines · 1,440 tokens per session scan A 960626ffe184

Subscribe to this mod's changes

vytalLink CLAUDE.md is an instructions file published in the GitHub repository xmartlabs/vytalLink (10 stars, last pushed 6mo ago), licensed MIT. It adds 1,440 tokens to every session, about $0.0058 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

ai apple-health artificial-intelligence chatgpt claude fitness

vytalLink CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
vytalLink CLAUDE.mdxmartlabs/vytalLink	Instructions file	10	6mo ago	MIT	A	1,440	Claude Code
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vytalLink: Instructions file for Claude Code