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Prompt to hook.

The deploy-uni-hook skill turns a one-line brief into a live Uniswap v4 hook: generate the Solidity, derive the flags, mine the CREATE2 salt, then audit, behavioral-test, and fork-simulate before it ever broadcasts. Every hook below is live on Base Sepolia - written by aeon, verifiable onchain.

Three skills, one chain
  1. 01hook-ideaBrainstorms 5 buildable v4 hooks using the xAI API, deduped against everything already tried.
  2. 02deploy-uni-hookTurns one brief into a live hook - audit, behavioral test, fork sim, then broadcast.
  3. 03hook-frontendShips a wallet-connectable demo dapp so the hook's mechanic is visible onchain.
10Hooks liveAll on Base Sepolia (84532), each verifiable at its address.
3Live demo dappsConnect a wallet, faucet test tokens, and swap to trigger the hook.

Every hook here is DEPLOYED and live on Base Sepolia, verifiable at its address; a DEMO badge marks the ones that also have a wallet-connectable dapp. The colored strip is the hook's on-chain fingerprint - which swap steps it hooks into, tinted by what it can do (all 10 as of Aug 3, 2026).

  • VALUE (moves tokens)
  • FEE (dynamic)
  • GATE (allow / reject)
01DynamicFee0x7F83…10c0Charges a higher swap fee when the market gets choppy and eases off when it calms down.DEPLOYED02NoOp0x848f…0080Does nothing - it waves every trade through untouched. The blank starting point for building your own.DEPLOYED03HeavierHand0x3181…8080Only lets you sell whichever token the pool holds more of, nudging it back toward balance.DEPLOYED04BlockEcho0xe36B…0080Your trade only goes through if its amount ends in the same digits as the current block number.DEPLOYED05TailTwins0x2ac1…8080Your trade must match the pool's current price in its last digit - and that price shifts with every swap.DEMO06TotalizerTrap0xC3Aa…8080The pool keeps a running total of everything traded. If your swap would land it on a multiple of 11, it's blocked.DEMO07CrownClash0xB8aA…4044Every trade pays a tiny 0.07% into a pot. Trade the most volume to wear the crown - and whoever takes it grabs the pot.DEMO08LegacyLedger0x5E01…0044Every trade is taxed into a shared pot, and loyal traders earn a rebate - always less than they paid, so the pot never runs dry.DEPLOYED09ExactInGate0x261B…4080Only lets you trade by spending an exact amount in; asking for an exact amount out is blocked. The simplest hook here.DEPLOYED10CapGate0xaDF3…4080Rejects any trade above a fixed size cap before it runs - the pool fills small swaps only, so whales have to split up or go elsewhere.DEPLOYED

How it works

  1. 01

    Generate

    A brief becomes Solidity. Templates cover fee-surge, no-op, and skim-a-cut; anything novel is written freeform as a single Hook contract. The flags are derived from which callbacks it implements, never hand-set.

  2. 02

    Gate

    Three gates run before any deploy: a static audit (names, onlyPoolManager, no selfdestruct/delegatecall), an agent-written behavioral forge test that asserts the hook's actual rule, and a fork simulation of deploy + swap. Any failure stops the run.

  3. 03

    Deploy

    Mine a CREATE2 salt so the address carries the right flag bits, broadcast, initialize the pool, add liquidity, and run one swap. Dry-run is the default; a live broadcast needs an explicit arm:, and mainnet needs a triple lock.

  4. 04

    Show

    The best hooks get a hook-frontend demo: a wallet-connectable dapp that faucets test tokens, reads the hook's live state, and swaps through the pool so its mechanic is visible - not just described.

Safe by design

A hook binding is immutable and a bad hook can brick a pool or steal funds, so the gates sit before the deploy. The deploy key is a burner holding gas float only; the demo pools trade MockERC20 tokens, so a broadcast risks gas, never real capital. Everything after the broadcast is just recording what already happened onchain.



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