Portfolio Tracker Skill

An investment portfolio tracker that runs entirely locally. All data stays in ~/.portfolio-tracker/.

Architecture

• Data: ~/.portfolio-tracker/data.json (portfolios, assets, prices)
• Config: ~/.portfolio-tracker/config.json (API keys, wallet addresses, user profile)
• Scripts: TypeScript CLI tools in /scripts/, run via npx tsx

First-Time Setup

Before running any script, ensure dependencies are installed:

npm install --prefix <skill-path>/scripts

Replace with the actual installed path of this skill.

How Scripts Work

Each script is a standalone CLI tool. Run them with:

npx tsx <skill-path>/scripts/<script>.ts <command> [args]

Scripts read from stdin when needed and output JSON to stdout.

data-store.ts

• load — Read portfolio data (creates default if missing)
• save — Write portfolio data (JSON from stdin)
• load-config — Read config
• save-config — Write config (JSON from stdin)

fetch-prices.ts

• crypto — Get crypto price (Binance → CoinGecko)
• stock — Get stock price (Yahoo Finance)
• fx — Get USD/CNY/HKD exchange rates
• historical — Get 3yr monthly historical data
• search — Search for assets by name/symbol
• refresh — Batch refresh prices (assets JSON from stdin)

binance-sync.ts

• sync — Fetch all Binance balances (6 account types)
• validate — Validate API credentials

ibkr-sync.ts

• sync — Fetch IBKR positions via Flex Query
• validate — Validate IBKR credentials

blockchain-sync.ts

• sync
  [chain] — Fetch wallet balances (single chain or all 5 EVM chains)
• validate
  — Validate EVM address

Data Types

Asset

{
  "id": "unique-id",
  "type": "CRYPTO | USSTOCK | HKSTOCK | ASHARE | CASH",
  "symbol": "BTC",
  "name": "Bitcoin",
  "quantity": 1.5,
  "avgPrice": 40000,
  "currentPrice": 50000,
  "currency": "USD | CNY | HKD",
  "transactions": [],
  "source": { "type": "manual | binance | wallet | ibkr" }
}

Portfolio

{
  "id": "unique-id",
  "name": "Main",
  "assets": [...]
}

Workflow Patterns

Viewing Portfolio

1. Load data via data-store.ts load
2. Find current portfolio by currentPortfolioId
3. Calculate total value using quantity * currentPrice per asset
4. Convert to display currency using exchangeRates
5. Present as a formatted table

Adding Assets

1. Load data
2. Search for the asset using fetch-prices.ts search
3. Get current price via fetch-prices.ts crypto/stock
4. Add asset to current portfolio with a generated unique ID
5. Save data

Refreshing Prices

1. Load data
2. Pipe current portfolio assets to fetch-prices.ts refresh via stdin
3. Also run fetch-prices.ts fx for exchange rates
4. Update each asset's currentPrice and the exchangeRates
5. Set lastPriceRefresh to current ISO timestamp
6. Save data

Syncing from Exchange/Wallet

1. Load config to get credentials
2. Run the appropriate sync script
3. Merge results: update existing assets (match by symbol+source), add new ones
4. Save data

Commands

Available user commands:

• /portfolio — View and manage portfolios
• /prices — Refresh all prices
• /setup — Configure API keys and wallets
• /sync-binance — Sync from Binance
• /sync-ibkr — Sync from Interactive Brokers
• /sync-wallet — Sync from blockchain wallet
• /advise — Get AI investment advice