# Send Uniswap Swap Simulation to your agent
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
## Fast path
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
## Suggested prompts
### New install

```text
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.
```
### Upgrade existing

```text
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.
```
## Machine-readable fields
```json
{
  "schemaVersion": "1.0",
  "item": {
    "slug": "uniswap-swap-simulation",
    "name": "Uniswap Swap Simulation",
    "source": "tencent",
    "type": "skill",
    "category": "数据分析",
    "sourceUrl": "https://clawhub.ai/wpank/uniswap-swap-simulation",
    "canonicalUrl": "https://clawhub.ai/wpank/uniswap-swap-simulation",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/uniswap-swap-simulation",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=uniswap-swap-simulation",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "README.md",
      "SKILL.md"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-04-23T16:43:11.935Z",
      "expiresAt": "2026-04-30T16:43:11.935Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=4claw-imageboard",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=4claw-imageboard",
        "contentDisposition": "attachment; filename=\"4claw-imageboard-1.0.1.zip\"",
        "redirectLocation": null,
        "bodySnippet": null
      },
      "scope": "source",
      "summary": "Source download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this source.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/uniswap-swap-simulation"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    }
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/uniswap-swap-simulation",
    "downloadUrl": "https://openagent3.xyz/downloads/uniswap-swap-simulation",
    "agentUrl": "https://openagent3.xyz/skills/uniswap-swap-simulation/agent",
    "manifestUrl": "https://openagent3.xyz/skills/uniswap-swap-simulation/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/uniswap-swap-simulation/agent.md"
  }
}
```
## Documentation

### Overview

This skill covers simulating Uniswap swaps, calculating price impact, and analyzing routing decisions.

### Key Concepts

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.

### Simulating a Swap

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]

### Price Impact Calculation

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);
}

### Slippage Tolerance

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;

### Multi-hop Routing

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],
});

### Gas Estimation

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.

### MEV Considerations

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
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: wpank
- Version: 0.1.0
## Source health
- Status: healthy
- Source download looks usable.
- Yavira can redirect you to the upstream package for this source.
- Health scope: source
- Reason: direct_download_ok
- Checked at: 2026-04-23T16:43:11.935Z
- Expires at: 2026-04-30T16:43:11.935Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/uniswap-swap-simulation)
- [Send to Agent page](https://openagent3.xyz/skills/uniswap-swap-simulation/agent)
- [JSON manifest](https://openagent3.xyz/skills/uniswap-swap-simulation/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/uniswap-swap-simulation/agent.md)
- [Download page](https://openagent3.xyz/downloads/uniswap-swap-simulation)