Pons Launch — launchToken on Robinhood Chain

Product truth (do not dilute)

• Pons launches fixed-supply ERC-20s (PonsLauncherToken) with a Uniswap V3 pool, not a bonding curve.
• Factory entry point is launchToken (selector 0x686399cb), not a guessed createLaunch.
• Supply / max-wallet / max-tx / restriction blocks come from on-chain LaunchConfig (launchConfigId), not free-form agent inventing.
• Launch costs launchFee ETH (live-read; historically 0.0005 ETH) plus gas; msg.value above the fee funds optional atomic initial buy.
• Cheshire does not own Pons bytecode; we are a partner surface (like NOXA): registry + prepare + wallet sign + verify.

Canonical addresses (Robinhood mainnet 4663)

Grounded in shipped client/src/lib/pons-launch/registry.ts and live probes.

Item	Value
PonsLaunchFactory (current)	0xA5aAb3F0c6EeadF30Ef1D3Eb997108E976351feB
Legacy factory ($PONS only)	0x0c37a24F5D23A486FA692d1500881d698B1F77a4
Pair token (WETH)	0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73
DEX V3 factory	0x1f7d7550B1b028f7571E69A784071F0205FD2EfA
NonfungiblePositionManager	0x73991a25C818Bf1f1128dEAaB1492D45638DE0D3 (PONS_DEFAULT_POSITION_MANAGER)
Swap router (dex config 0)	0xCaf681a66D020601342297493863E78C959E5cb2 (PONS_DEFAULT_SWAP_ROUTER — from factory getDexConfig(0))
Default pool fee	10000 (1%) (PONS_DEFAULT_POOL_FEE)
Default launchConfigId / dexId	0 / 0 (read live before relying)
Chain ID	4663
Public RPC	https://rpc.mainnet.chain.robinhood.com (rate-limited)
App RPC	Set RH_RPC_URL (Alchemy/QuickNode preferred)
Explorer	https://robinhoodchain.blockscout.com
Human UI (Cheshire)	/pons-launch (launch) · /pons-launch/{token} (trade)
Demo trade token	0x41e6318d44E0290CDd8c77219B57D17E44Bb59aB (CTESTV2IW)
Status API	GET /api/pons/launch/status
Prepare API	POST /api/pons/launch/prepare
Shipped helpers	client/src/lib/pons-launch/* (launch + V3 trade)

Factory may migrate. Re-discover (below) if launches fail or status drifts.

When to use which path

Goal	Action
User wants click-launch in browser	Send to /pons → Wallet launch (EVM wallet on 4663)
Agent has funded RH EVM key + RPC	preparePonsLaunch → simulate → launchToken → verify receipt
User wants bonding-curve / pump-style RH	Use rh-bonded-launch (createToken on 0x3f60…)
User wants Solana $CLAWD	Stop — wrong chain/product
User only wants Pons market data	Firecrawl monitor: GET /api/pons/snapshot (not a launch)

Factory reverse-discovery (no key from Pons required)

Every PonsLauncherToken stores:

address public immutable launchFactory; // set to msg.sender in constructor

Recipe

1. Collect graduated/live token addresses from https://pons.family/launchpad or GET /api/pons/launchpad.
2. For each token, eth_call launchFactory().
3. Vote: most common non-zero address = current factory.
4. Confirm with factory getLaunchedToken(token) → exists == true.
5. Optionally read token dexFactory(), positionManager(), pairToken(), poolFee() to refresh periphery defaults.

// Pseudocode — use viem readContract
const factory = await read(token, "launchFactory()");
const row = await read(factory, "getLaunchedToken(token)");
// row.exists === true for tokens of that factory

Do not invent a factory address. Prefer shipped registry defaults, then re-probe if needed.

Pre-flight (always)

import { createPublicClient, http, formatEther } from "viem";

const FACTORY = "0xA5aAb3F0c6EeadF30Ef1D3Eb997108E976351feB" as const;

// launchEnabled() → true
// launchFee() → wei (e.g. 5e14 = 0.0005 ETH)
// getLaunchConfig(0) → enabled, pairToken, supply, maxWalletBps, maxTxBps, restrictionBlocks
// getDexConfig(0) → enabled, factory, positionManager, poolFee
// wallet balance ≥ launchFee + gas buffer (~0.0003–0.002 ETH depending on gas)
// chainId === 4663

Live snapshot (verify; do not hardcode forever):

Field	Observed
launchEnabled	true
launchFee	0.0005 ETH
LaunchConfig 0 supply	1e9 * 1e18
maxWalletBps / maxTxBps	500 / 550
restrictionBlocks	366
Dex 0 poolFee	10000

Agent workflow (browser / human-in-the-loop)

1. Confirm product: Pons V3 launch, not bonding curve, not $CLAWD.
2. Open /pons (Cheshire) → Wallet launch (Pons V3).
3. Connect EVM wallet → Robinhood Chain (4663) with ETH.
4. Name + symbol (+ optional description / extra buy above fee).
5. User confirms tx (pays launchFee + optional buy).
6. Report token, pool, explorer tx, and https://pons.family/launchpad/{token}.

Agent workflow (programmatic — prefer shipped helpers)

Source of truth (import these; do not reimplement ABI from memory):

• preparePonsLaunch — client/src/lib/pons-launch/prepare.ts
• verifyPonsLaunchReceipt — client/src/lib/pons-launch/receipt.ts
• getPonsLaunchRegistry — client/src/lib/pons-launch/registry.ts
• API: POST /api/pons/launch/prepare with { name, symbol, feeWallet, launchConfigId, dexId, valueWei }

Encode + send (viem)

import {
  createPublicClient,
  createWalletClient,
  http,
  defineChain,
  type Hex,
} from "viem";
import { privateKeyToAccount } from "viem/accounts";
import { preparePonsLaunch } from "./client/src/lib/pons-launch/prepare.ts";
import { verifyPonsLaunchReceipt } from "./client/src/lib/pons-launch/receipt.ts";

const RH = defineChain({
  id: 4663,
  name: "Robinhood Chain",
  nativeCurrency: { name: "Ether", symbol: "ETH", decimals: 18 },
  rpcUrls: {
    default: { http: [process.env.RH_RPC_URL || "https://rpc.mainnet.chain.robinhood.com"] },
  },
  blockExplorers: {
    default: { name: "Blockscout", url: "https://robinhoodchain.blockscout.com" },
  },
});

/**
 * Launch a Pons token. Never log or commit private keys.
 * Prefer user-signed wallet over agent-held keys.
 * Require explicit user confirmation before broadcast.
 */
export async function launchPonsToken(opts: {
  privateKey?: `0x${string}`; // only with explicit user approval
  name: string;
  symbol: string;
  description?: string;
  logo?: string;
  /** Defaults to the signing address */
  feeWallet?: `0x${string}`;
  launchConfigId?: number;
  dexId?: number;
  /** Total msg.value = launchFee + optional initial buy */
  valueWei?: bigint;
}) {
  if (!opts.privateKey) throw new Error("Need user wallet or authorized RH_EVM_PRIVATE_KEY");

  const account = privateKeyToAccount(opts.privateKey);
  const publicClient = createPublicClient({ chain: RH, transport: http() });
  const walletClient = createWalletClient({
    account,
    chain: RH,
    transport: http(),
  });

  const FACTORY = "0xA5aAb3F0c6EeadF30Ef1D3Eb997108E976351feB" as const;
  const fee = await publicClient.readContract({
    address: FACTORY,
    abi: [{ type: "function", name: "launchFee", stateMutability: "view", inputs: [], outputs: [{ type: "uint256" }] }] as const,
    functionName: "launchFee",
  });

  const prepared = preparePonsLaunch({
    name: opts.name,
    symbol: opts.symbol,
    description: opts.description,
    logo: opts.logo,
    feeWallet: opts.feeWallet ?? account.address,
    launchConfigId: opts.launchConfigId ?? 0,
    dexId: opts.dexId ?? 0,
    valueWei: opts.valueWei ?? fee,
  });

  // selector must be launchToken
  if (!prepared.data.startsWith("0x686399cb")) {
    throw new Error(`Unexpected selector ${prepared.data.slice(0, 10)} — expected launchToken 0x686399cb`);
  }

  await publicClient.call({
    account: account.address,
    to: prepared.to,
    data: prepared.data,
    value: prepared.value,
  });

  const hash = await walletClient.sendTransaction({
    account,
    chain: RH,
    to: prepared.to,
    data: prepared.data as Hex,
    value: prepared.value,
  });

  const receipt = await publicClient.waitForTransactionReceipt({ hash });
  const verified = verifyPonsLaunchReceipt({
    launchFactory: prepared.to,
    deployer: account.address,
    receipt: {
      status: receipt.status,
      logs: receipt.logs.map((l) => ({
        address: l.address,
        data: l.data,
        topics: l.topics,
      })),
    },
  });
  if (!verified.ok) throw new Error(verified.reason);

  return {
    txHash: hash,
    token: verified.token,
    pool: verified.pool,
    explorerTx: `https://robinhoodchain.blockscout.com/tx/${hash}`,
    explorerToken: `https://robinhoodchain.blockscout.com/token/${verified.token}`,
    ponsUrl: `https://pons.family/launchpad/${verified.token}`,
  };
}

HTTP prepare (Cheshire server)

curl -sS -X POST "$ORIGIN/api/pons/launch/prepare" \
  -H 'content-type: application/json' \
  -d '{
    "name":"Cheshire Test",
    "symbol":"CTEST",
    "feeWallet":"0xYourEvmAddress",
    "launchConfigId":0,
    "dexId":0,
    "valueWei":"500000000000000"
  }'
# → { to, data, value, salt, … } then wallet_sendTransaction

Proven test launch (regression reference)

• Tx: 0xe5a35a584e8ef9c09e9cd4d1953ad7d39a341c8854c024ccb36a7208a751b86c
• Token: 0x41e6318d44E0290CDd8c77219B57D17E44Bb59aB
• Pool: 0xc686755CECea371A99fd9CB110EDFad8af0056B1

On-site trading (host the market — not RH bonding)

Pons tokens are already graduated into a locked Uniswap V3 pool at launch. There is no bonding-curve buy/sell. “Host bonding” on Cheshire = host the V3 market via SwapRouter exactInputSingle.

Trade surfaces

Route	Page
/pons-launch/{token}	PonsTokenPage + PonsTradePanel
/pons/token/{token}	same
/launch/pons/{token}	same
Demo	/pons-launch/0x41e6318d44E0290CDd8c77219B57D17E44Bb59aB

Trade path (source of truth)

1. getLaunchedToken(token) on factory → exists, pairedToken, poolFee, isToken0, restrictionsEndBlock, supply
2. V3 dexFactory.getPool(token, pairedToken, poolFee) → pool
3. pool.slot0() → sqrtPriceX96 for spot estimate
4. Encode SwapRouter02 exactInputSingle (0x04e45aaf, not classic 0x414bf389) to swap router 0xCaf681…
   • Buy: tokenIn=WETH, tokenOut=token, msg.value=amountIn
   • Sell: approve token → router, then tokenIn=token, tokenOut=WETH, value=0
   • Classic deadline-in-struct selector reverts on this router (verified via estimateGas)
5. Precheck restriction window via preparePonsTrade / assertRestrictedPoolBuyAllowed

Helpers:

• preparePonsExactInputSingle — client/src/lib/pons-launch/swap.ts
• preparePonsTrade / PONS_DEMO_TOKEN — client/src/lib/pons-launch/trade.ts
• UI — client/src/components/PonsTradePanel.tsx

Proven demo market (Cheshire Test V2IW)

Field	Value
Token	0x41e6318d44E0290CDd8c77219B57D17E44Bb59aB
Symbol	CTV2IW
Pool	0xc686755CECea371A99fd9CB110EDFad8af0056B1
Fee	10000 (1%)
isToken0	false (WETH is token0)
Pair	WETH 0x0Bd7…AD73
Router	0xCaf681a66D020601342297493863E78C959E5cb2

Restriction education (PonsLauncherToken)

Optional pre-trade education (pure helpers: client/src/lib/pons-launch/policy.ts):

• Launch-block pool buys blocked except factory atomic initial-buy exemption.
• During restriction window: max wallet BPS of supply; cumulative max-tx BPS of supply.
• After restrictionEndBlock: unrestricted ERC-20 transfers.

Agents do not set these at launch time when using launchToken — they are fixed by LaunchConfig.

Safety rules for agents

1. Never print, log, or commit private keys / seed phrases.
2. Prefer user-signed wallet txs; agent keys only with explicit user approval and a funded throwaway EVM key (RH_EVM_PRIVATE_KEY).
3. Confirm name/symbol/value/chain with the user before broadcast.
4. Ensure chain id 4663 before send.
5. Value must cover launchFee + gas; do not underpay.
6. Never claim the token is Solana $CLAWD or 1:1 backed.
7. Never use Solana keypairs for this path.
8. Do not use RH bonding factory (0x3f60…) for Pons launches.
9. If launchEnabled is false or getLaunchConfig(0).enabled is false — stop and report.

Env

Variable	Role
RH_RPC_URL	Preferred RH JSON-RPC
RH_EVM_PRIVATE_KEY	Optional agent custody hex key (never commit)
PONS_LAUNCH_FACTORY	Override factory (else registry default)
VITE_PONS_LAUNCH_FACTORY	Browser mirror of factory override

Install this skill elsewhere

cp -R .agents/skills/pons-launch \
  ~/.agents/skills/pons-launch

# Portable repo mirror
cp -R .agents/skills/pons-launch \
  skills/pons-launch

Portable duplicate: skills/pons-launch/SKILL.md in this repository.

Related

• Bonding-curve RH launches: skill rh-bonded-launch
• Cheshire Pons page: client/src/pages/PonsPage.tsx
• Server routes: server/routes/pons.ts
• Firecrawl monitor only: server/lib/pons-firecrawl.ts (not required for launch)