Add SpcxStrategyHook hook on robinhood

[hooklist-generator]

Summary

A fee-taking hook for a single ETH/SPCXSTR pool that charges a decaying buy tax (95%→10% at ~1%/min via block.timestamp) and a flat 10% sell tax via afterSwapReturnsDelta. Token-denominated fees are converted to ETH mid-swap via a nested pool swap; ETH shortfalls are deferred as ERC-6909 claims. Collected ETH is split 90/10 between a mutable controller address and a dev address. Exact-output swaps are unconditionally reverted.

Flags

Flag	Value
beforeInitialize	true
afterInitialize	false
beforeAddLiquidity	false
afterAddLiquidity	true
beforeRemoveLiquidity	false
afterRemoveLiquidity	false
beforeSwap	false
afterSwap	true
beforeDonate	false
afterDonate	false
beforeSwapReturnsDelta	false
afterSwapReturnsDelta	true
afterAddLiquidityReturnsDelta	false
afterRemoveLiquidityReturnsDelta	false

Properties

Property	Value
dynamicFee	false
upgradeable	false
requiresCustomSwapData	false
vanillaSwap	false
swapAccess	none

Warnings

• Submitter-proposed description rejected: attributes behavior to external contracts (SPCX accumulation and SPCXSTR burns by the controller) and includes external branding ("stockworks.fun") not verifiable from the hook source. Using AI-generated description.

Closes #1123

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Project	Deployment	Actions	Updated (UTC)
hooklist	Ready	Preview, Comment	Jul 21, 2026 12:15am

[github-actions]

Review: hooks/robinhood/0xf7c46f4ddb5d6b8c6a040e19cf2064e832d32444.json

Flags

Address last 14 bits: 0x2444 → bits 13, 10, 6, 2 set.

Flag	Address bit	JSON	Source getHookPermissions()
beforeInitialize	1	true	true ✓
afterInitialize	0	false	false ✓
beforeAddLiquidity	0	false	false ✓
afterAddLiquidity	1	true	true ✓
beforeRemoveLiquidity	0	false	false ✓
afterRemoveLiquidity	0	false	false ✓
beforeSwap	0	false	false ✓
afterSwap	1	true	true ✓
beforeDonate	0	false	false ✓
afterDonate	0	false	false ✓
beforeSwapReturnsDelta	0	false	false ✓
afterSwapReturnsDelta	1	true	true ✓
afterAddLiquidityReturnsDelta	0	false	false ✓
afterRemoveLiquidityReturnsDelta	0	false	false ✓

All flags match. ✓

Properties

• dynamicFee: false — No beforeSwap, no updateDynamicLPFee() call. The hook takes fees via afterSwapReturnsDelta, not an LP fee override. ✓
• upgradeable: false — No proxy, delegatecall, or SELFDESTRUCT. source_meta.json confirms "proxy": false. ✓
• requiresCustomSwapData: false — The hookData parameter in _afterSwap is never decoded or inspected; swaps succeed with empty bytes. ✓
• vanillaSwap: false — Correct; afterSwapReturnsDelta is true and the hook materially alters swap output by skimming fees. ✓
• swapAccess: "none" — No beforeSwap flag; the hook's ExactOutputNotAllowed revert is a swap-type restriction (not caller-based access control), and the bootstrapper exemption is an internal fee bypass, not a swap gate. ✓

Metadata

• name "SpcxStrategyHook" matches the on-chain contract name. ✓
• chainId 4663 matches chains.json entry for "robinhood". ✓
• verifiedSource: true matches source_meta.json "verified": true. ✓
• description is accurate and fully substantiated by the source:
  • Decaying buy tax 95%→10%: confirmed by STARTING_BUY_FEE = 9_500, DEFAULT_FEE = 1_000, DECAY_STEP_SECONDS = 60 in calculateFee(). ✓
  • Flat 10% sell tax: confirmed by calculateFee(false) returning DEFAULT_FEE. ✓
  • Token→ETH conversion via nested swap: confirmed by _swapToEth(). ✓
  • ETH shortfalls as ERC-6909 claims: confirmed by _takeEthOrDefer() calling poolManager.mint(). ✓
  • 90/10 split to mutable controller/dev: confirmed by TREASURY_PCT = 90, setController(), setDev(). ✓
  • Exact-output unconditionally reverted: confirmed by if (params.amountSpecified > 0) revert ExactOutputNotAllowed(). ✓
  • No promotional, audit, safety, or unsubstantiated language. ✓

All checks pass.

[marktoda]

Bot review verified. SpcxStrategyHook (robinhood). Flags: beforeInitialize, afterAddLiquidity, afterSwap, afterSwapReturnsDelta. Description 430 chars (under limit). LGTM.