> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pariprotocol.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Launch rules and presets

> The three presets: opening fee, buy limits and the locked dev buy.

## What it is

A preset is the set of rules a launch follows. A dev picks one per launch, and it cannot be changed after launch. Each preset is one fixed DBC config, so changing a value means registering a new config.

## When to use it

Pick a preset by how much protection you want at the start:

* **Light** suits devs who want fast trading. Protection is shorter and the caps are higher.
* **Standard** is the default.
* **Strict** has the longest window and the lowest caps. The \$PARI token launches on Strict.

## Numbers and limits

| | Light | Standard | Strict |
| - | - | - | - |
| Sniper fee | 99% → 1% in 30 s | 99% → 1% in 30 s | 99% → 1% in 3 min |
| Fee curve | Exponential | Exponential | Exponential |
| Max wallet | 1% of supply for 60 s | 0.5% for 2 min | 0.25% for 5 min |
| Buys per slot | 5% of supply | 3% | 1.5% |
| Dev launch buy cap (locked) | 1.5% of supply | 1% | 0.5% |
| Dev buy unlock | At migration or after 24 hours | At migration or after 24 hours | At migration or after 7 days |
| Holder window | 5 min 30 s | 5 min 30 s | 8 min |

How to read the table:

* **Sniper fee.** The fee a buyer pays at the start, and how long it takes to fall to the 1% base fee. It falls a little every second.
* **Max wallet.** The most one wallet may hold during the window, as a share of total supply. The dev's locked vault is exempt.
* **Buys per slot.** The most that can be bought in one slot, as a share of total supply.
* **Dev launch buy cap.** The most the dev can buy at launch. These tokens stay locked until the unlock time.
* **Holder window.** The decay time plus 5 minutes. See [Fees](https://docs.pariprotocol.xyz/protocol/fees.md).

These are the starting values. They may change before the mainnet launch.

## Rules every preset shares

* **Migration.** About US\$ 45k market cap.
* **Name lock.** For 6 hours after a launch, no other launch may use the same name or ticker. Lookalike letters, accents and digits are compared after normalization.
* **Sells.** The caps limit buys, not sells. A sell never pays more than the current fee.
* **Token accounts only.** During the window, tokens can only move to associated token accounts (ATA).
* **Blocklist.** During the window, the hook refuses any transaction that has an instruction from a program on the blocklist, sells included. After the window, every program can trade. Only the admin (the multisig) can add or remove programs, and the list is public on [Verify](https://pariprotocol.xyz/verify). It holds up to 64 programs.
* **Bundles.** Wallets that buy in the same slot hit the per-slot cap and the max wallet, and they pay the opening fee. The token page flags wallets funded by the creator or by a common source.
* **The hook ends at the curve.** The hook is revoked on the buy that completes the curve. After that, the token trades without it.

## Step by step

**1. Compare the table**

Look at the fee time, the max wallet and the dev buy cap.

**2. Pick one at launch**

The site opens on Standard. The SDK and the CLI take the name of the preset.

**3. Check it on Review**

You cannot change it after launch.

## What can go wrong

> [accordion] A dev buy is over the cap
>
> The launch is refused.

> [accordion] Tokens are sent to a dev-lock account
>
> If a third party sends tokens to a creator's locked-buy account during the window, the creator cannot use them.

> [accordion] The caps stop one buyer, not one person
>
> The rules limit each wallet and each slot. They cannot prove who controls a wallet.

## Next

> [card] [Launch a token](https://docs.pariprotocol.xyz/guides/launch-a-token.md)
>
> Use a preset, step by step.

> [card] [Fees](https://docs.pariprotocol.xyz/protocol/fees.md)
>
> Who receives what, and the holder window.


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