fix: asset chain selector enabled for new supported chains

.claude/skills/chain-integration/SKILL.md

@@ -961,6 +961,50 @@ case KnownChainIds.[ChainName]Mainnet:
   return supports[Chain](wallet) // from hdwallet-core
 ```
 
+### Step 3.8: Add Asset Support Detection (CRITICAL!)
+
+**IMPORTANT**: This was missing for recent chains (Tron, SUI, Monad, HyperEVM, Plasma) and caused assets not to show up properly!
+
+**File**: `src/state/slices/portfolioSlice/utils/index.ts`
+
+Add your chain to the `isAssetSupportedByWallet` function around line 367:
+
+```typescript
+// 1. Import your chain ID at the top
+import {
+  // ... existing imports
+  [chainLower]ChainId,
+} from '@shapeshiftoss/caip'
+
+// 2. Import the support function from hdwallet-core
+import {
+  // ... existing imports
+  supports[ChainName],
+} from '@shapeshiftoss/hdwallet-core'
+
+// 3. Add case to the switch statement in isAssetSupportedByWallet
+export const isAssetSupportedByWallet = (assetId: AssetId, wallet: HDWallet): boolean => {
+  if (!assetId) return false
+  const { chainId } = fromAssetId(assetId)
+  switch (chainId) {
+    // ... existing cases
+    case [chainLower]ChainId:
+      return supports[ChainName](wallet)
+    // ... rest of cases
+    default:
+      return false
+  }
+}
+```
+
+**Why this matters**: This function determines if a wallet can use a particular asset. Without it, assets for your chain won't appear in wallet UIs even if everything else is configured correctly!
+
+**Example**: For HyperEVM, add:
+```typescript
+case hyperEvmChainId:
+  return supportsHyperEvm(wallet)
+```
+
 ---
 
 ## Phase 4: Web Plugin & Feature Flags
@@ -1922,6 +1966,7 @@ case plasmaChainId:
 - [ ] `src/context/PluginProvider/PluginProvider.tsx`
 - [ ] `src/hooks/useWalletSupportsChain/useWalletSupportsChain.ts`
 - [ ] `src/hooks/useActionCenterSubscribers/useSendActionSubscriber.tsx`
+- [ ] `src/state/slices/portfolioSlice/utils/index.ts` (isAssetSupportedByWallet function)
 
 ### Web Files (Config)
 - [ ] `.env`

src/state/slices/portfolioSlice/utils/index.ts

@@ -45,12 +45,16 @@ import {
   supportsCosmos,
   supportsETH,
   supportsGnosis,
+  supportsHyperEvm,
   supportsMayachain,
+  supportsMonad,
   supportsOptimism,
+  supportsPlasma,
   supportsPolygon,
   supportsSolana,
   supportsSui,
   supportsThorchain,
+  supportsTron,
 } from '@shapeshiftoss/hdwallet-core'
 import { GridPlusHDWallet } from '@shapeshiftoss/hdwallet-gridplus'
 import { PhantomHDWallet } from '@shapeshiftoss/hdwallet-phantom'
@@ -418,6 +422,14 @@ export const isAssetSupportedByWallet = (assetId: AssetId, wallet: HDWallet): bo
       return supportsSolana(wallet)
     case suiChainId:
       return supportsSui(wallet)
+    case monadChainId:
+      return supportsMonad(wallet)
+    case hyperEvmChainId:
+      return supportsHyperEvm(wallet)
+    case plasmaChainId:
+      return supportsPlasma(wallet)
+    case tronChainId:
+      return supportsTron(wallet)
     default:
       return false
   }