Requirements
- Target platform
- OpenClaw
- Install method
- Manual import
- Extraction
- Extract archive
- Prerequisites
- OpenClaw
- Primary doc
- SKILL.md
Simulate and analyze Uniswap swaps including price impact, slippage, optimal routing, and gas estimation. Use when the user asks about swap execution, routing, price impact, or MEV considerations.
Simulate and analyze Uniswap swaps including price impact, slippage, optimal routing, and gas estimation. Use when the user asks about swap execution, routing, price impact, or MEV considerations.
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Then review README.md for any prerequisites, environment setup, or post-install checks. Tell me what you changed and call out any manual steps you could not complete.
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Then review README.md for any prerequisites, environment setup, or post-install checks. Summarize what changed and any follow-up checks I should run.
This skill covers simulating Uniswap swaps, calculating price impact, and analyzing routing decisions.
Price Impact: The change in pool price caused by a swap. Larger swaps have higher impact. Slippage: Difference between expected and executed price, including price movement between submission and execution. Routing: Finding the optimal path across pools and protocols for best execution.
Use the Quoter contract to simulate swaps without executing: import { createPublicClient, http, encodeFunctionData } from "viem"; // QuoterV2 for v3 pools const quote = await client.readContract({ address: quoterV2Address, abi: quoterV2Abi, functionName: "quoteExactInputSingle", args: [ { tokenIn, tokenOut, amountIn, fee, sqrtPriceLimitX96: 0n, }, ], }); // Returns: [amountOut, sqrtPriceX96After, initializedTicksCrossed, gasEstimate]
function calculatePriceImpact( amountIn: bigint, amountOut: bigint, marketPrice: number, // token1/token0 decimals0: number, decimals1: number, ): number { const executionPrice = Number(amountOut) / 10 ** decimals1 / (Number(amountIn) / 10 ** decimals0); return Math.abs(1 - executionPrice / marketPrice); }
Stablecoin pairs: 0.01% - 0.05% Major pairs (ETH/USDC): 0.1% - 0.5% Volatile pairs: 0.5% - 1.0% Low liquidity: 1% - 5% Calculate minimum amount out: const minAmountOut = (amountOut * (10000n - BigInt(slippageBps))) / 10000n;
For tokens without direct pools, route through intermediary tokens: // ETH -> USDC -> DAI (two hops) const path = encodePacked( ["address", "uint24", "address", "uint24", "address"], [WETH, 3000, USDC, 100, DAI], ); const quote = await client.readContract({ address: quoterV2Address, abi: quoterV2Abi, functionName: "quoteExactInput", args: [path, amountIn], });
Typical gas costs by swap complexity: Single hop: ~130,000 gas Two hops: ~200,000 gas Three hops: ~270,000 gas Always add a 15-20% buffer to gas estimates.
When building swap tools: Recommend private RPCs (Flashbots Protect) for large swaps Warn users about sandwich attack risk for high-impact swaps Suggest using deadline parameters to limit exposure
Data access, storage, extraction, analysis, reporting, and insight generation.
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