t2000

Instructions

Implementation Reference

• packages/mcp/src/tools/write.ts:77-111 (handler)

  Implementation of the t2000_save tool.

  server.tool(
    't2000_save',
    'Deposit USDC to savings at the best USDC rate (earns yield). Amount is in dollars. Use "all" to save entire available balance. Set dryRun: true to preview. This saves USDC as USDC — do NOT suggest swapping to other assets first. If the user later wants to chase higher yields on other assets (e.g. USDe), use t2000_rebalance AFTER saving.',
    {
      amount: z.union([z.number(), z.literal('all')]).describe('Dollar amount to save, or "all"'),
      dryRun: z.boolean().optional().describe('Preview without signing (default: false)'),
    },
    async ({ amount, dryRun }) => {
      try {
        if (dryRun) {
          agent.enforcer.assertNotLocked();
          const balance = await agent.balance();
          const rates = await agent.rates();
          const saveAmount = amount === 'all' ? balance.available - 1.0 : amount;
  
          return {
            content: [{
              type: 'text',
              text: JSON.stringify({
                preview: true,
                amount: saveAmount,
                currentApy: rates.USDC?.saveApy ?? 0,
                savingsBalanceAfter: balance.savings + saveAmount,
              }),
            }],
          };
        }
  
        const result = await mutex.run(() => agent.save({ amount }));
        return { content: [{ type: 'text', text: JSON.stringify(result) }] };
      } catch (err) {
        return errorResult(err);
      }
    },
  );