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Combining extensions

Extensions are useful individually. The reason for the slots and the ordering is what happens when several run on the same market.

A protected opening​

Blocks: dynamic fee + sniper tax.

The dynamic fee sets the baseline from volatility. The sniper tax overrides it upward for the declared window, then stops applying. Traders pay the tax in the first minutes and the normal model afterwards, and both values were published before the market opened.

This is the most common pair, and the order matters: the tax has the final word only because it applies when its value is the higher one.

Fees that pay holders​

Blocks: dynamic fee + staking vault as recipient.

The creator sets a community share at creation, and the vault receives that portion of their income on every swap and on every collection of the locked liquidity's fees. Holders who stake earn in ETH and in the coin, and the creator keeps the rest.

Fees that reduce supply​

Blocks: any fee calculator + buyback and burn as recipient.

The creator's income is spent buying the coin on its own market and burning what it buys. Trading funds supply reduction directly, with no discretion and nobody to trigger it manually.

A market that gets cheaper as it matures​

Blocks: an observer that counts + a fee calculator that reads it.

An observer accumulates facts about the market as it runs, such as its age or how many distinct wallets have traded it. A fee calculator reads those counters and steps the fee down permanently as the coin passes them: expensive while it is new and thin, cheap once it is established.

Neither block is unusual on its own. The behaviour only exists because two of them run in the same market, and it is the clearest illustration of why the system is built this way. Writing it means writing an observer and a calculator: see Developers.

Choosing a stack​

Four fee slots and four observer slots are more than most coins need today. Two considerations are worth keeping in mind:

  • Every block is permanent. A stack is a description of the coin for its whole life.
  • Observers share a gas budget per swap, in the order the creator set, so a long chain of them is a real cost on a busy market.