jb-ruleset - SKILL.md Agent Skill

name: jb-ruleset description: Configure and queue Juicebox V5 rulesets. Design ruleset parameters including issuance rate, reserved rate, cash out tax rate, splits, payout limits, and approval hooks. Generate scripts for queueing new rulesets.

Juicebox V5 Ruleset Configuration

Design and queue rulesets for Juicebox V5 projects.

What Are Rulesets?

Rulesets are time-bounded configuration packages that define project behavior:

Token economics: Weight (minting rate), reserved rate
Cash out behavior: Cash out tax rate
Fund distribution: Payout limits, splits
Governance: Approval hooks for change control

When a ruleset ends, the next queued ruleset becomes active. If no ruleset is queued, the current one recycles (with optional issuance cut).

Ruleset Parameters

JBRuleset (Read-Only State)

struct JBRuleset {
    uint256 cycleNumber;        // Increments each cycle
    uint256 id;                 // Unique ruleset ID
    uint256 basedOnId;          // Previous ruleset ID
    uint256 start;              // Start timestamp
    uint256 duration;           // Duration (0 = indefinite)
    uint256 weight;             // Token minting weight (18 decimals)
    uint256 weightCutPercent;   // Weight cut per cycle (0-1000000000, where 1e9 = 100%)
    IJBRulesetApprovalHook approvalHook;
    JBRulesetMetadata metadata;
}

JBRulesetMetadata

struct JBRulesetMetadata {
    uint256 reservedRate;       // Reserved tokens (0-10000, where 10000 = 100%)
    uint256 cashOutTaxRate;     // Tax on cash outs (0-10000)
    uint256 baseCurrency;       // Base currency for accounting
    bool pausePay;              // Pause payments
    bool pauseCashOut;          // Pause cash outs
    bool pauseTransfers;        // Pause token transfers
    bool allowOwnerMinting;     // Owner can mint tokens
    bool allowTerminalMigration;
    bool allowSetTerminals;
    bool allowSetController;
    bool allowAddAccountingContexts;
    bool allowAddPriceFeed;
    bool ownerMustSendPayouts;
    bool holdFees;              // Hold fees for potential refund
    bool useTotalSurplusForCashOuts;
    bool useDataHookForPay;     // Enable pay data hook
    bool useDataHookForCashOut; // Enable cash out data hook
    address dataHook;           // Data hook address
    uint256 metadata;           // Custom metadata bits
}

Queue Rulesets

Use JBController.queueRulesetsOf() to queue future rulesets:

function queueRulesetsOf(
    uint256 projectId,
    JBRulesetConfig[] calldata rulesetConfigurations,
    string calldata memo
) external returns (uint256 rulesetId);

Configuration Examples

Basic Ruleset (Indefinite Duration)

JBRulesetMetadata memory metadata = JBRulesetMetadata({
    reservedRate: 1000,         // 10% reserved
    cashOutTaxRate: 0,          // No cash out tax
    baseCurrency: uint32(uint160(JBConstants.NATIVE_TOKEN)),
    pausePay: false,
    pauseCashOut: false,
    pauseTransfers: false,
    allowOwnerMinting: false,
    allowTerminalMigration: false,
    allowSetTerminals: false,
    allowSetController: false,
    allowAddAccountingContexts: false,
    allowAddPriceFeed: false,
    ownerMustSendPayouts: false,
    holdFees: false,
    useTotalSurplusForCashOuts: false,
    useDataHookForPay: false,
    useDataHookForCashOut: false,
    dataHook: address(0),
    metadata: 0
});

JBRulesetConfig memory config = JBRulesetConfig({
    mustStartAtOrAfter: 0,
    duration: 0,                // Indefinite
    weight: 1e18,               // 1 token per unit
    weightCutPercent: 0,
    approvalHook: IJBRulesetApprovalHook(address(0)),
    metadata: metadata,
    splitGroups: new JBSplitGroup[](0),
    fundAccessLimitGroups: new JBFundAccessLimitGroup[](0)
});

Weekly Cycles with Weight Cut

JBRulesetConfig memory config = JBRulesetConfig({
    mustStartAtOrAfter: 0,
    duration: 7 days,           // 1 week cycles
    weight: 1000e18,            // Start at 1000 tokens/ETH
    weightCutPercent: 50000000, // 5% weight cut per cycle (50000000 / 1e9)
    approvalHook: IJBRulesetApprovalHook(address(0)),
    metadata: metadata,
    splitGroups: splitGroups,
    fundAccessLimitGroups: fundAccessLimits
});

With Approval Hook (3-Day Delay)

// JBDeadline requires 3 days notice for ruleset changes
IJBRulesetApprovalHook approvalHook = IJBRulesetApprovalHook(JB_DEADLINE);

JBRulesetConfig memory config = JBRulesetConfig({
    mustStartAtOrAfter: 0,
    duration: 30 days,
    weight: 1e18,
    weightCutPercent: 0,
    approvalHook: approvalHook,  // Requires advance notice
    metadata: metadata,
    splitGroups: splitGroups,
    fundAccessLimitGroups: fundAccessLimits
});

With Data Hook

JBRulesetMetadata memory metadata = JBRulesetMetadata({
    // ... other fields
    useDataHookForPay: true,
    useDataHookForCashOut: false,
    dataHook: address(myBuybackHook),
    // ...
});

Splits Configuration

Payout Splits

Distribute funds when payouts are triggered:

JBSplit[] memory payoutSplits = new JBSplit[](2);

// 50% to treasury
payoutSplits[0] = JBSplit({
    preferAddToBalance: false,
    percent: 500_000_000,       // 50% (out of 1e9)
    projectId: 0,               // Not a project
    beneficiary: payable(treasuryAddress),
    lockedUntil: 0,
    hook: IJBSplitHook(address(0))
});

// 50% to another project
payoutSplits[1] = JBSplit({
    preferAddToBalance: true,   // Add to balance, not pay
    percent: 500_000_000,
    projectId: otherProjectId,
    beneficiary: payable(address(0)),
    lockedUntil: 0,
    hook: IJBSplitHook(address(0))
});

JBSplitGroup[] memory splitGroups = new JBSplitGroup[](1);
splitGroups[0] = JBSplitGroup({
    groupId: 1,                 // Payout splits group
    splits: payoutSplits
});

Reserved Token Splits

Distribute reserved tokens:

JBSplit[] memory reservedSplits = new JBSplit[](1);

reservedSplits[0] = JBSplit({
    preferAddToBalance: false,
    percent: 1_000_000_000,     // 100%
    projectId: 0,
    beneficiary: payable(teamMultisig),
    lockedUntil: block.timestamp + 365 days,  // Locked for 1 year
    hook: IJBSplitHook(address(0))
});

splitGroups[1] = JBSplitGroup({
    groupId: 2,                 // Reserved tokens group
    splits: reservedSplits
});

Fund Access Limits

Set payout limits and surplus allowance:

JBCurrencyAmount[] memory payoutLimits = new JBCurrencyAmount[](1);
payoutLimits[0] = JBCurrencyAmount({
    amount: 10 ether,
    currency: uint32(uint160(JBConstants.NATIVE_TOKEN))
});

JBCurrencyAmount[] memory surplusAllowances = new JBCurrencyAmount[](1);
surplusAllowances[0] = JBCurrencyAmount({
    amount: 0,                  // No discretionary access
    currency: uint32(uint160(JBConstants.NATIVE_TOKEN))
});

JBFundAccessLimitGroup[] memory fundAccessLimits = new JBFundAccessLimitGroup[](1);
fundAccessLimits[0] = JBFundAccessLimitGroup({
    terminal: address(TERMINAL),
    token: JBConstants.NATIVE_TOKEN,
    payoutLimits: payoutLimits,
    surplusAllowances: surplusAllowances
});

Queue Script Example

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

import {Script} from "forge-std/Script.sol";
import {IJBController} from "@bananapus/core/src/interfaces/IJBController.sol";
// ... other imports

contract QueueRuleset is Script {
    IJBController constant CONTROLLER = IJBController(0x...);
    uint256 constant PROJECT_ID = 1;

    function run() external {
        vm.startBroadcast();

        // Build ruleset config...
        JBRulesetConfig[] memory configs = new JBRulesetConfig[](1);
        configs[0] = /* config */;

        CONTROLLER.queueRulesetsOf(PROJECT_ID, configs, "Update ruleset");

        vm.stopBroadcast();
    }
}

Generation Guidelines

Understand current ruleset - check existing parameters before changes
Consider timing - rulesets activate when current one ends
Use approval hooks for governance-controlled projects
Configure appropriate limits - payout limits prevent rug pulls
Lock critical splits with lockedUntil timestamp

Example Prompts

"Queue a ruleset that increases reserved rate to 20%"
"Set up monthly payout cycles of 5 ETH max"
"Add a 3-day approval delay for ruleset changes"
"Configure splits to send 30% to a DAO treasury"

Reference

nana-core-v5: https://github.com/Bananapus/nana-core-v5