Limits

Limits cap how much your agent can buy and how fast it can sell. They are written into your vault contract, so the chain enforces them as well as our engine, even if our trading key were ever compromised. Limits cap the damage; they don't prevent losses.

The limits

Per-trade cap

The most one buy may spend. Wizard default $50; at most $50,000.

24h buy cap

The most all buys together may spend in any rolling 24 hours. Default $200; at most $250,000; never below the per-trade cap.

Sell limit per hour

The share of each position the agent may sell in any rolling hour. Default 50%.

Sell limit per day

A second cap over any rolling 24 hours. Default 50%; it can be switched off, and can't be tighter than the hourly one.

Allowlist (optional)

When on, the vault only buys tokens you added to its list.

Max trades per day (optional)

How many trades the agent may make in any rolling 24 hours: 1 to 500, or empty for no limit (the default). Exits like stop-loss always run and don't count (see Stop-loss & take-profit).

Every money cap is a real number: there is no “unlimited” setting. Only the trade count is optional.

Max trades per day

An optional cap on how often your agent trades. It counts the agent's own buys and sells that went through (settled on-chain, or filled on paper) in the last 24 hours, the same rolling window as the 24h buy cap. Once the agent reaches the cap, it holds until the oldest counted trade is more than 24 hours old: the receipt says “Daily trade limit reached (5/5); next trade possible at 14:05 UTC”. While capped no AI model is asked, so a capped agent uses no AI budget. The agent sees how many trades it has left in every decision.

Never counted and never blocked: stop-loss, take-profit, trailing-stop and profit-lock exits, brake exits, “Liquidate everything”, and your own actions (withdraw, emergency exit). Risk exits must always run. Set it in Manage → Limits or in the wizard under Advanced; leave the field empty for no limit. It applies from the next decision and needs no transaction: it is checked by our engine, not the vault contract. Brain League agents all trade under the same rules and have no trade cap.

Why limit selling?

If our trading key were ever stolen, a thief could try to dump your positions into a pool they control. The sell limiter makes that slow: with the defaults, at most half of a position per hour and half per day. It also means “Liquidate everything” takes more than a day, because it goes through the same key, and a large stop-loss or take-profit sells in chunks. Your own Withdraw and Emergency exit are never limited. See Getting your money out.

Our recommendation

The sell limits are yours to set. What we suggest:

• You rely on stop-losses: raise the daily limit to 100% (one click in Manage → Exits or Manage → Limits) and keep the hourly limit at 50%. A stop then sells a position in two steps about an hour apart instead of over days, and the hourly cap still slows a stolen key.
• Small positions, or you mostly let the agent trade: the defaults are fine. They give the most protection if our trading key were ever stolen.
• Any time you want out at once: use Emergency exit. No sell limit applies to it.

Changing limits

Manage → Limits. Each changed limit on the vault is a transaction you sign. The box “Read from the vault contract” shows the values the chain holds right now, with a link to the explorer.