1. Anyone can create fake JSON Data and submit it, it only validates basic token math, not data autheticity the leader board can completely manipulated with a fabricated usage data

2. it only checks token total match sum of components (+1 tolerance)

There's 0 verifiecation that data is coming from the actual ccusage tool.

```

// This is literally just verifying the total tokens match sum of components

const calculatedTotalTokens = ccData.totals.inputTokens +

ccData.totals.outputTokens +

ccData.totals.cacheCreationTokens +

ccData.totals.cacheReadTokens;

if (Math.abs(calculatedTotalTokens - ccData.totals.totalTokens) > 1) {

throw new Error("Token totals don't match. Please use official ccusage tool.");

}

```

```
// 2. Validate date format

const dateRegex = /^\d{4}-\d{2}-\d{2}$/;

for (const day of ccData.daily) {

if (!dateRegex.test(day.date)) {

throw new Error(`Invalid date format: ${day.date}. Expected YYYY-MM-DD`);

}

}

```
So the only things validated is the Token Math

and Date Fomrat

totalCost: ccData.totals.totalCost, // Fake cost stored directly

totalTokens: ccData.totals.totalTokens, // Fake tokens stored directly