dione/AGENTS.md

cbBTC Treasury Dashboard

What it is: A single-page HTML dashboard tracking cbBTC acquisition across wallets. No build step, no JS framework, no tests — just one index.html served by nginx.

How to run

docker build -t cbBTC-dashboard . && docker run -p 8080:80 cbBTC-dashboard

Or just open index.html in a browser (without the /api/ proxy, only the Kraken BTC price chart will work).

Architecture

The codebase is split into three vanilla ESM modules plus the single-page dashboard:

Module	Purpose
wallets.js	WalletManager — localStorage state, chain-specific address validation, verification lifecycle
verifier.js	WalletVerifier — EIP-712 typed-data signing via window.ethereum, user rejection handling
stream.js	WalletStreamManager — single WebSocket with BroadcastChannel leader election, exponential backoff + jitter

File layout

File	Purpose
index.html	Dashboard UI. Embedded chart data, ApexCharts, TailwindCSS. Loads modules via <script type="module">.
wallets.js	WalletManager — anonymous localStorage wallet state, add/remove/verify/revoke
verifier.js	WalletVerifier — window.ethereum connection + EIP-712 signature flow
stream.js	WalletStreamManager — single WS, cross-tab leader election, event routing
Dockerfile	4 lines. Copies index.html and default.conf into nginx:alpine.
default.conf	Reverse proxy: /api/ → http://192.168.1.102:8000/api/.
aave_portfolio.md / wallet_portfolio.md	Reference data dumps. NOT consumed by the app.

Key facts for editing index.html

• Data is embedded as JS constants near the top of the <script> block:
  • walletCumulData — time-series of cumulative BTC per wallet
  • dailySatsData — rolling sats/day with price info
  • walletsMetadata — wallet id → address, name, color, chain
  • walletCosts / walletBuys — cost basis per wallet
• API endpoints (proxied through nginx):
  • GET /api/v1/prices/{symbol}/history?range=N — price history
  • GET /api/v1/portfolio/{address}/base/aave — Aave portfolio snapshots
• BTC price fetched directly from Kraken: https://api.kraken.com/0/public/OHLC?pair=XBTUSD&interval=1440
• Polling: setInterval every 30s with a 60s throttle on the Aave endpoint
• Tracked wallet: 0x0c1a4a060e119f981412e323104d1c134d413dba ("penguin", Base)
• Token decimals: cbBTC=8, WETH=18, USDC=6

Module API

Each module is loaded via <script type="module"> in index.html:

import { WalletManager } from './wallets.js';
import { WalletVerifier } from './verifier.js';
import { WalletStreamManager } from './stream.js';

const wm = new WalletManager();
wm.loadWallets();

const verifier = new WalletVerifier(wm);
const stream = new WalletStreamManager(wm);
stream.connect();

WalletManager

Method	Description
loadWallets()	Reads from localStorage, sanitizes (always isVerified: false)
addWallet(address, chain, nickname)	Validates format, appends, persists
removeWallet(address, chain)	Drops from state, persists
verifyWallet(address, chain, signature, messageData)	Sets isVerified: true
revokeVerification(address, chain)	Resets to unverified
findWallet(address, chain)	Lookup helper
getWallets()	Returns deep copy of state

WalletVerifier

Method	Description
triggerWalletVerification(chain, nickname)	Full flow: eth_requestAccounts → EIP-712 sign → add + verify
connect()	Quick connect check (no signature)

EIP-712 domain: { name: "Anonymous Wallet Tracker", version: "1", chainId: 1 }

WalletStreamManager

Method	Description
connect()	Triggers BroadcastChannel leader election → opens single WS
disconnect()	Closes WS + BC, cancels timers
on(event, callback)	Register callback per event type
subscribeToNewWallet(wallet)	Dynamic subscribe (leader → WS, follower → BC)
unsubscribeFromWallet(address, chain)	Dynamic unsubscribe

Cross-tab leader election uses BroadcastChannel("dione_shared_stream") with a 200ms timeout. Leader-death broadcast triggers failover election. Reconnect uses exponential backoff (1s → 30s) with ±25% jitter.

Gotchas

• apiBase = window.location.origin — the dashboard relies on nginx proxy to reach the backend at 192.168.1.102:8000. Running without Docker/proxy means the Aave table and price charts fail silently.
• No linting, no type-checking, no CI. Validate changes by opening the HTML in a browser.
• Adding chart data? Update the embedded arrays (walletCumulData, etc.) — they are plain JS arrays of [timestampMs, value] pairs.
• wallets.js always forces isVerified: false on loadWallets() — persisted signatures are discarded. Verification must go through WalletVerifier.

Coding Guidelines

You are an expert senior Web3 frontend engineer specializing in high-scale performance and stateless cryptographic security.

We are building the client-side code for an anonymous multi-wallet tracker. The application handles up to 100k concurrent connections, so code efficiency, memory management, and avoiding redundant network overhead are paramount.

1. Modern TypeScript/JavaScript — clean, modular, and well-commented.
2. No bloated third-party UI frameworks — stick to vanilla methods or standard state hooks.
3. Production-ready error handling — bulletproof handling for wallet rejections and network drops.

After every index.html edit

Always rebuild and restart the Docker container so changes take effect:

docker build -t cbbtc-dashboard . && docker stop dione-dashboard && docker rm dione-dashboard && docker run -d --name dione-dashboard -p 8080:80 cbbtc-dashboard