[Bug] Tick Spacing not Respected from Add Liquidity Link to URL Query Params

[mikeghen]

📱 Interface Affected

Which application are you experiencing issues with?

• [x] Web (app.uniswap.org)
• [ ] Wallet Extension (wallet.uniswap.org)
• [ ] Wallet Mobile App
  • [ ] iOS
  • [ ] Android
  • [ ] Both

---

🧩 App Version

• Version (if known):
• [x] Production build
• [ ] Development build

---

💻 System / Environment Info

Please provide details about your environment:

• Browser (name + version): Chrome
• OS / Platform (e.g. iOS 17, Windows 11, Android 14):
• Device (e.g. iPhone 14 Pro, Pixel 7, MacBook Pro 2023):
• Wallet used (e.g. Uniswap Wallet, MetaMask, Rainbow): Metamask
• Network (e.g. Ethereum Mainnet, Arbitrum, Base, etc.): Base

---

🔁 Steps to Reproduce

1. Go to this liquidity pool, which is set up with tickspacing = 10: https://app.uniswap.org/explore/pools/base/0x870198ffb454503d5ce1b698c94bc98198c874d61e8a2994dd6e01ee04535f89
2. Click on 'Add Liquidity'
3. Inspect the URL's query parameters in the destination URL, expect tickspacing = 10:

https://app.uniswap.org/positions/create/v4
  ?currencyA=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
  &currencyB=0xb1599cde32181f48f89683d3c5db5c5d2c7c93cc
  &chain=base
  &hook=0xBc5F29A583a8d3ec76e03372659e01a22feE3A80
  &fee={"feeAmount":1000,"tickSpacing":60,"isDynamic":true}
  &priceRangeState={"priceInverted":false,"fullRange":true,"minPrice":"","maxPrice":"","initialPrice":""}
  &depositState={"exactField":"TOKEN0","exactAmounts":{}}

---

✅ Expected Behavior

Tick Spacing is correctly set to 10:

&fee={"feeAmount":1000,"tickSpacing":10,"isDynamic":true}

---

❌ Actual Behavior

Tick Spacing set to 60:

&fee={"feeAmount":1000,"tickSpacing":60,"isDynamic":true}

---

📸 Screenshots or Screen Recording

---

🧾 Additional Context

I still think this correctly adds to the USDC/DCA pool with Tick Spacing 10 since all of my other tools and smart contracts show that it is doing that. My concern is that someone makes a tick spaced pool of 60 and then suddenly liquidity is getting fractured across 2 different pools.

---

⚠️ Please redact or avoid sharing sensitive data such as private keys, seed phrases, or personally identifying info.

[mikeghen]

I'll also add that I don't feel comfortable making LPs through the UI with tickspacing=10 like I need since I can't have an assurance that argument will be respected for dynamic pools.