Impossible Finance Trading Skill

Purpose & Scope

This skill enables an AI agent to trade tokens on Impossible Finance DEX (BSC mainnet). Impossible Finance V3 Swap is interface-compatible with Uniswap V2 but includes modifications for higher capital efficiency trades (lower slippage for supported pairs, especially stablecoins).

It covers:

• Wallet creation — Generate a BSC keypair and store it locally for transaction signing.
• Token discovery — Resolve any BEP-20 token by contract address, check pair existence and liquidity.
• Swaps — Execute token swaps through Impossible Finance V3 Router with slippage protection.
• Balance checks — Query native BNB and BEP-20 token balances.
• Top-ups — Provide the agent's BSC address so the user can fund it.

What This Skill Does NOT Do

• It does not manage ClawChain agent registration. For that, see the clawchain skill (skill.md or curl_skills.md).
• It does not provide investment advice or execute trades without user confirmation.
• It does not access any files outside of ~/.config/impossible_agent/ and optionally ~/.config/clawchain/credentials.json (read-only, for EVM key registration only).

Transparency: Files Accessed

Transparency: Network Calls

Configuration (BSC Mainnet)

Set these environment variables before using the skill. All have sensible defaults for BSC mainnet:

export BSC_RPC_URL="https://bsc-dataseed1.binance.org"
export BSC_CHAIN_ID=56

# Impossible Finance V3 (BSC mainnet)
export IF_ROUTER="0xCCF4881b849d94C15c98567Ba71b08eD829ABA33"
export IF_FACTORY="0xBf9D97eAF551877E4710d8E9d0519F79E03E5E69"
export WBNB="0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c"

Block explorer: https://bscscan.com

Impossible Finance Swap UI: https://app.impossible.finance/swap

Prerequisites

This skill requires Node.js 18+ and the ethers npm package (v6):

npm install ethers
# or: pnpm add ethers

1. Wallet Setup — Create Wallet and Save Keys

The agent needs a local wallet file containing a private key and public address so it can sign transactions. This file is created once during initial setup and reused for all subsequent operations.