Skill: ivangdavila/uniswap (version 1.0.0)

--- name: Uniswap description: Assist with Uniswap swaps, liquidity provision, and avoiding common DeFi losses. metadata: {"clawdbot":{"emoji":"🦄","os":["linux","darwin","win32"]}} --- ## Swap Execution - Slippage tolerance sets max acceptable price change — 0.5% for stablecoins, 1-3% for volatile pairs, higher for low liquidity tokens - "Price impact" and "slippage" are different — impact is immediate effect of your trade size, slippage is protection against price movement - High price impact (>2%) means you're moving the market — split large trades or use limit orders on Uniswap X - Transaction deadline prevents stale swaps — 20-30 minutes default is usually fine, but pending tx beyond deadline will fail ## MEV and Frontrunning - Public swaps on Uniswap are visible in mempool before execution — bots can sandwich your trade - Use MEV protection: swap through Uniswap wallet (built-in protection), or connect via Flashbots Protect RPC - Signs of sandwich: execution price worse than quoted, with suspicious buy before and sell after your tx - Uniswap X routes through private order flow — significantly reduces MEV extraction ## Token Approval Traps - First swap of any token requires approval transaction — this is normal, costs gas, and happens once per token per spender - "Infinite approval" is the default — convenient but risky if Uniswap router is ever compromised - Check and revoke old approvals at revoke.cash — approvals persist forever until explicitly revoked - Approval transaction can succeed while swap fails — user pays gas for approval but swap reverts on slippage ## Fake Tokens - Anyone can create a token with any name and symbol — "USDC" on Uniswap might not be real USDC - Always verify token contract address on CoinGecko, CoinMarketCap, or project's official site - Warning signs: no liquidity, recently created, honeypot (can buy but not sell), tax on transfer - Uniswap shows warning for unverified tokens — don't ignore it, especially for tokens you found via links ## Liquidity Provision - Impermanent loss is real and permanent when you withdraw — LPs lose vs just holding when prices diverge - V3 concentrated liquidity amplifies both gains and losses — narrow range means more fees but higher IL risk - Out-of-range positions earn zero fees — price moves outside your range, you hold 100% of the depreciating asset - V2 is simpler: full range, less management, but less capital efficient — consider for volatile pairs you want to forget ## V3 Position Management - Narrower range = more fees per dollar but more rebalancing — only worth it if you actively manage - Gas costs to adjust positions add up — each add/remove liquidity is a transaction - "Collect fees" is separate from "remove liquidity" — uncollected fees stay in the position - NFT represents your V3 position — losing the NFT means losing access to the liquidity ## Gas Optimization - Approve + swap is two transactions on first use — budget gas for both - L2s (Arbitrum, Base, Optimism) have Uniswap with 10-50x lower fees — same interface, same liquidity depth - Swapping during low gas periods (weekends, UTC night) saves significantly on mainnet - Failed transactions still cost gas — simulate first if unsure about slippage or liquidity ## Failed Swap Causes - "Insufficient liquidity" — try smaller amount or different route - "Slippage exceeded" — price moved during pending period, increase slippage or retry - "Transfer failed" — token has transfer tax or restrictions, may be a scam token - "Deadline exceeded" — transaction was pending too long, just retry - "Approve first" — need to approve token before swap, this is normal ## Uniswap X and Limit Orders - Uniswap X uses off-chain orders filled by market makers — no gas if order isn't filled - Limit orders let you set target price — order sits until price is reached or expires - Partial fills possible — large orders may fill incrementally - Check order status in the app — pending orders can be cancelled ## Safety Checklist Before Large Swaps - Verify token contract address matches official source - Check price impact percentage — high impact means bad execution - Confirm slippage is set appropriately for the pair - Use MEV protection for mainnet trades - Consider splitting very large trades - Double-check recipient address if sending to different wallet


Security scan verdicts — ClawScan: clean | static analysis: clean | VirusTotal: clean | SkillSpector: clean (LOW)