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Market Guard

HookrLive

Swaps that stray from a live Chainlink price pay the pool's LPs a surcharge.

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What you take on

  • The band, ramp, surcharge and price age limit are frozen at launch.
  • Its circuit breaker, which refuses a swap leaving the band, is not offered yet.
Source verification is not an independent audit.
Gas it adds
No figure yet
not measured on its own
Slot
Advisory
one per pool
Status
Live
Read at block 82701337

How it behaves

It binds fail-closed, so when the feed cannot answer or its price is older than the limit, the pool refuses swaps until it does. It is offered only where a live feed prices the pool's exact pair.

It takes the pool's one advisory, so it never shares a pool with Tax + Conversion, Buy/Sell Block, Market-hours fee, Managed fee, Zap Relay source, Zap Relay target, Swap Reward Mint or Usage fee.

What you set

Fixed with the pool at launch.

Mode
Surcharge, the only mode offered
Band
10%0.5% to 50%
Ramp
10%0.5% to 50%
Full surcharge
1%0.0001% to 5%

Can't be combined with

  • Any other advisoryA pool takes one advisory, so it runs one of these blocks. A Multi-pool launch can carry another on a pool of its own.
  • A Partner tax launchA Partner tax launch's tax is the pool's one advisory.
  • Dynamic fees at their widest ceilingAn advisory's fee room is set aside first, so the widest dynamic fee ceiling doesn't fit beside one.

Other Hook Blocks

Buy/Sell BlockStops one trader buying and selling in the same blockRecovery reserveMoney a pool's owner sets aside in public view, filled by top-ups at launch, that pays back LPs or traders after a reviewed incidentCanonical Venue TokenA token that trades only on its own pool, for assets that must stay on one known venueMarket-hours feeA fee that follows the US stock market's sessionsManaged feeA surcharge Hookr's keeper sets inside a cap you fix at launchUsage feeHookr's Hook Blocks Market block: every swap pays a usage fee to its builder, its backers, Hookr and a reserveDeploying soonHook Blocks MarketBuilders publish add-on blocks bonded in HOOKR, and every swap in a pool that installs one pays its usage feeTax + ConversionBuy and sell taxes, paid in the pool's quote
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