ERC20 Tokenomics Builder

End-to-end token launch readiness: allocation design → vesting contracts → liquidity math → investor docs.

Workflow

1. Gather inputs — total supply, allocations, unlock schedules, raise target, listing price
2. Build allocation table — categories, amounts, percentages, unlock logic
3. Generate vesting schedules — cliff + linear using OpenZeppelin VestingWallet
4. Model Uniswap liquidity — initial price, pool depth, slippage targets
5. Draft investor documentation — token sale summary, SAFT context, vesting proof

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1. Allocation Table

Standard allocation buckets (adjust to project):

Category	% Supply	Cliff	Vesting	TGE Unlock
Team	15–20%	12 mo	36 mo	0%
Investors (seed)	10–15%	6 mo	24 mo	0–5%
Investors (priv)	8–12%	3 mo	18 mo	5–10%
Ecosystem/DAO	20–30%	0	48 mo	5%
Community/Airdrop	10–15%	0	0–12 mo	100%
Liquidity	5–10%	0	0	100%
Reserve/Treasury	10–20%	0	Governance	0–5%

Output format: Markdown table + CSV for investor decks.

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2. OpenZeppelin VestingWallet

OZ VestingWallet handles cliff + linear release natively.

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/finance/VestingWallet.sol";

// Deploy one per beneficiary (or use a factory)
// constructor(address beneficiary, uint64 startTimestamp, uint64 durationSeconds)

// Example: 12mo cliff + 24mo linear for team member
// start = TGE timestamp + 12 months (cliff built in by setting start = cliff end)
// duration = 24 months (linear release after start)

VestingWallet teamVest = new VestingWallet(
    teamMemberAddress,
    uint64(tgeTimestamp + 365 days),   // start after 12mo cliff
    uint64(730 days)                    // 24mo linear vesting
);

Key methods: - release(token) — beneficiary calls to claim vested tokens - vestedAmount(token, timestamp) — query how much is unlockable - releasable(token) — current claimable balance

Cliff pattern: Set startTimestamp = TGE + cliffDuration. Vesting begins linearly after cliff with no special code needed.

Multi-beneficiary factory pattern: See references/vesting-factory.md

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3. Vesting Schedule Modeling

Calculate monthly unlock amounts for each category:

Monthly unlock (post-cliff) = (allocation_tokens / vesting_months)
TGE unlock = allocation_tokens × tge_pct
Remaining = allocation_tokens × (1 - tge_pct)
Linear_per_month = Remaining / vesting_months_after_cliff

Circulating supply projection formula:

CS(t) = Σ [tge_i + max(0, (t - cliff_i) / vest_i) × (1 - tge_pct_i)] × supply_i

Where t = months since TGE, i = each allocation bucket.

Model month-by-month in a table through month 48. Flag any month where unlock > 5% of circulating supply (selling pressure risk).

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4. Uniswap Liquidity Math

v2 Pool Setup (constant product: x * y = k)

Initial price = ETH_amount / TOKEN_amount
k = ETH_amount × TOKEN_amount

Slippage for trade size S:
  price_impact = S / (ETH_reserve + S)
  tokens_out = TOKEN_reserve × S / (ETH_reserve + S)

Recommended: price impact < 1% for typical retail trade size
→ Pool depth = trade_size / 0.01

Example: Target $10k retail trade at <1% impact → Need $1M TVL in the pool

v3 Concentrated Liquidity

• Define price range: [P_low, P_high] where P = token price in ETH/USDC
• Recommended initial range: ±20–30% from listing price
• Concentrated liquidity = ~10x capital efficiency vs v2 in-range
• Use tickLower / tickUpper = log(price) / log(1.0001)

Listing price discovery:

FDV_target = total_supply × listing_price
Implied_MC = circulating_supply × listing_price
Liquidity_ratio = pool_TVL / MC  → target 5–15% for healthy launch

See references/uniswap-math.md for deeper tick/range calculations.

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5. Investor Documentation Templates

Token Sale Summary (SAFT context)

## Token: [NAME] ($TICKER)
- Total Supply: X,000,000,000
- TGE Date: [DATE]
- Network: Ethereum / [L2]
- Contract: [0x...]

## This Round
- Round: Seed / Private / Strategic
- Raise: $X at $Y/token → $Z FDV
- Allocation: X% of supply
- Vesting: X mo cliff, X mo linear, X% TGE
- VestingWallet: [contract address or "to be deployed"]

## Token Release Schedule
[Month-by-month unlock table for this tranche]

## Use of Funds
[breakdown]

Vesting Proof for Investor

After deploying VestingWallet, provide: - Contract address - Etherscan link - vestedAmount(tokenAddress, block.timestamp) call - Next release milestone date

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6. Common Pitfalls

• Too much TGE unlock for team → dump signal; keep 0% until cliff
• Liquidity < 5% of MC → vulnerable to price manipulation
• No vesting cliff for advisors → cheap paper hands
• FDV too high at listing → suppresses price for years
• Missing release() automation → beneficiaries forget; use a keeper script
• Single VestingWallet per team → use individual wallets per person for clean cap table

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References

• references/vesting-factory.md — Solidity VestingWallet factory + batch deployment
• references/uniswap-math.md — Detailed Uniswap v2/v3 tick math and liquidity formulas
• references/allocation-templates.md — Pre-built allocation tables for DeFi, GameFi, DAO, Infrastructure

NOT This Skill

• Already-deployed contract audit → use solidity-audit-precheck
• LP position monitoring / IL tracking → use defi-position-tracker
• Safe/multisig treasury management → use multi-sig-treasury
• General ERC20 contract upgrades → use upgrade-solidity-contracts