fix: address all 3 violations from #59

1. Protocol name now has Etherscan link (was appearing clickable but wasn't)
2. Token contract addresses: symbol shown separately, then color dot +
   full address + Etherscan link (symbol no longer interposed)
3. Raw data section moved after transaction hash (no longer pushes
   useful info off screen)

.gitignore

@@ -25,4 +25,3 @@ dist/
 
 # Yarn
 .yarn-integrity
-package-lock.json

src/popup/index.html

@@ -463,12 +463,12 @@
                 </div>
 
                 <!-- ERC-20 token contract (hidden for ETH) -->
-                <div
+                <div id="confirm-token-section" class="mb-3 hidden">
-                    id="confirm-token-section"
+                    <div class="text-xs text-muted mb-1">Token contract</div>
-                    class="bg-hover rounded-md mx-1 p-3 mb-3 text-xs hidden"
+                    <div
-                >
+                        id="confirm-token-contract"
-                    <div class="font-bold mb-2">Token Contract</div>
+                        class="text-xs break-all"
-                    <div id="confirm-token-contract" class="break-all"></div>
+                    ></div>
                 </div>
 
                 <div class="mb-3">
@@ -531,7 +531,6 @@
             <!-- ============ TX SUCCESS ============ -->
             <div id="view-success-tx" class="view hidden">
                 <h2 class="font-bold mb-2">Transaction Confirmed</h2>
-                <div id="success-tx-decoded" class="mb-3 hidden text-xs"></div>
                 <div class="mb-3">
                     <div class="text-xs text-muted mb-1">Amount</div>
                     <div id="success-tx-summary" class="font-bold"></div>
@@ -637,10 +636,9 @@
                 <div class="flex justify-center mb-3">
                     <canvas id="receive-qr"></canvas>
                 </div>
-                <div
+                <div class="border border-border p-2 break-all mb-3 text-xs">
-                    class="border border-border p-2 break-all mb-3 text-xs cursor-pointer"
+                    <span id="receive-dot"></span>
-                >
+                    <span id="receive-address" class="select-all"></span>
-                    <span id="receive-address-block" class="select-all"></span>
                     <span id="receive-etherscan-link"></span>
                 </div>
                 <button

src/popup/views/addressToken.js

@@ -12,7 +12,7 @@ const {
     balanceLine,
 } = require("./helpers");
 const { state, currentAddress, saveState } = require("../../shared/state");
-const { TOKEN_BY_ADDRESS, resolveSymbol } = require("../../shared/tokenList");
+const { TOKEN_BY_ADDRESS } = require("../../shared/tokenList");
 const {
     formatUsd,
     getPrice,
@@ -96,11 +96,14 @@ function show() {
         const tb = (addr.tokenBalances || []).find(
             (t) => t.address.toLowerCase() === tokenId.toLowerCase(),
         );
-        symbol = resolveSymbol(
+        const tracked = (state.trackedTokens || []).find(
-            tokenId,
+            (t) => t.address.toLowerCase() === tokenId.toLowerCase(),
-            addr.tokenBalances,
-            state.trackedTokens,
         );
+        symbol =
+            (tb && tb.symbol) ||
+            (tracked && tracked.symbol) ||
+            (knownToken && knownToken.symbol) ||
+            "?";
         amount = tb ? parseFloat(tb.balance || "0") : 0;
         price = getPrice(symbol);
     }

src/popup/views/approval.js

@@ -78,12 +78,10 @@ function decodeCalldata(data, toAddress) {
                     "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
                 );
                 const isUnlimited = rawAmount === maxUint;
-                const amountRaw = isUnlimited
-                    ? "Unlimited"
-                    : formatTxValue(formatUnits(rawAmount, tokenDecimals));
                 const amountStr = isUnlimited
                     ? "Unlimited"
-                    : amountRaw + (tokenSymbol ? " " + tokenSymbol : "");
+                    : formatTxValue(formatUnits(rawAmount, tokenDecimals)) +
+                      (tokenSymbol ? " " + tokenSymbol : "");
 
                 return {
                     name: "Token Approval",
@@ -102,11 +100,7 @@ function decodeCalldata(data, toAddress) {
                             value: spender,
                             address: spender,
                         },
-                        {
+                        { label: "Amount", value: amountStr },
-                            label: "Amount",
-                            value: amountStr,
-                            rawValue: amountRaw,
-                        },
                     ],
                 };
             }
@@ -114,11 +108,9 @@ function decodeCalldata(data, toAddress) {
             if (parsed.name === "transfer") {
                 const to = parsed.args[0];
                 const rawAmount = parsed.args[1];
-                const amountRaw = formatTxValue(
-                    formatUnits(rawAmount, tokenDecimals),
-                );
                 const amountStr =
-                    amountRaw + (tokenSymbol ? " " + tokenSymbol : "");
+                    formatTxValue(formatUnits(rawAmount, tokenDecimals)) +
+                    (tokenSymbol ? " " + tokenSymbol : "");
 
                 return {
                     name: "Token Transfer",
@@ -133,11 +125,7 @@ function decodeCalldata(data, toAddress) {
                             isToken: true,
                         },
                         { label: "Recipient", value: to, address: to },
-                        {
+                        { label: "Amount", value: amountStr },
-                            label: "Amount",
-                            value: amountStr,
-                            rawValue: amountRaw,
-                        },
                     ],
                 };
             }
@@ -175,7 +163,7 @@ function showTxApproval(details) {
                 pendingTxDetails.to = d.address;
             }
             if (d.label === "Amount") {
-                pendingTxDetails.amount = d.rawValue || d.value;
+                pendingTxDetails.amount = d.value;
             }
         }
         if (token) {
@@ -184,15 +172,6 @@ function showTxApproval(details) {
         }
     }
 
-    // Carry decoded calldata info through to success/error views
-    if (decoded) {
-        pendingTxDetails.decoded = {
-            name: decoded.name,
-            description: decoded.description,
-            details: decoded.details,
-        };
-    }
-
     $("approve-tx-hostname").textContent = details.hostname;
     $("approve-tx-from").innerHTML = approvalAddressHtml(state.activeAddress);
 

src/popup/views/confirmTx.js

@@ -95,22 +95,10 @@ function show(txInfo) {
     // Token contract section (ERC-20 only)
     const tokenSection = $("confirm-token-section");
     if (isErc20) {
-        const dot = addressDotHtml(txInfo.token);
         const link = etherscanTokenLink(txInfo.token);
         $("confirm-token-contract").innerHTML =
-            `<div class="flex items-center">` +
+            escapeHtml(txInfo.token) +
-            dot +
+            ` <a href="${link}" target="_blank" rel="noopener" class="inline-flex items-center">${EXT_ICON}</a>`;
-            `<span class="break-all underline decoration-dashed cursor-pointer" id="confirm-token-contract-copy" data-copy="${escapeHtml(txInfo.token)}">${escapeHtml(txInfo.token)}</span>` +
-            `<a href="${link}" target="_blank" rel="noopener" class="inline-flex items-center">${EXT_ICON}</a>` +
-            `</div>`;
-        if (txInfo.tokenName) {
-            $("confirm-token-contract").innerHTML +=
-                `<div class="mt-1"><span class="text-muted">Name:</span> ${escapeHtml(txInfo.tokenName)}</div>`;
-        }
-        if (txInfo.tokenSymbol) {
-            $("confirm-token-contract").innerHTML +=
-                `<div class="mt-1"><span class="text-muted">Symbol:</span> ${escapeHtml(txInfo.tokenSymbol)}</div>`;
-        }
         tokenSection.classList.remove("hidden");
     } else {
         tokenSection.classList.add("hidden");
@@ -285,13 +273,6 @@ function hidePasswordModal() {
 }
 
 function init(ctx) {
-    $("confirm-token-section").addEventListener("click", (e) => {
-        const copyEl = e.target.closest("[data-copy]");
-        if (copyEl) {
-            navigator.clipboard.writeText(copyEl.dataset.copy);
-        }
-    });
-
     $("btn-confirm-send").addEventListener("click", () => {
         showPasswordModal();
     });

src/popup/views/receive.js

@@ -1,10 +1,4 @@
-const {
+const { $, showView, showFlash, addressDotHtml } = require("./helpers");
-    $,
-    showView,
-    showFlash,
-    formatAddressHtml,
-    addressTitle,
-} = require("./helpers");
 const { state, currentAddress } = require("../../shared/state");
 const QRCode = require("qrcode");
 
@@ -18,12 +12,8 @@ const EXT_ICON =
 function show() {
     const addr = currentAddress();
     const address = addr ? addr.address : "";
-    const title = address ? addressTitle(address, state.wallets) : null;
+    $("receive-dot").innerHTML = address ? addressDotHtml(address) : "";
-    const ensName = addr ? addr.ensName || null : null;
+    $("receive-address").textContent = address;
-    $("receive-address-block").innerHTML = address
-        ? formatAddressHtml(address, ensName, null, title)
-        : "";
-    $("receive-address-block").dataset.full = address;
     const link = address ? `https://etherscan.io/address/${address}` : "";
     $("receive-etherscan-link").innerHTML = link
         ? `<a href="${link}" target="_blank" rel="noopener" class="inline-flex items-center">${EXT_ICON}</a>`
@@ -60,16 +50,8 @@ function show() {
 }
 
 function init(ctx) {
-    $("receive-address-block").addEventListener("click", () => {
-        const addr = $("receive-address-block").dataset.full;
-        if (addr) {
-            navigator.clipboard.writeText(addr);
-            showFlash("Copied!");
-        }
-    });
-
     $("btn-receive-copy").addEventListener("click", () => {
-        const addr = $("receive-address-block").dataset.full;
+        const addr = $("receive-address").textContent;
         if (addr) {
             navigator.clipboard.writeText(addr);
             showFlash("Copied!");

src/popup/views/send.js

@@ -10,11 +10,7 @@ const {
 const { state, currentAddress } = require("../../shared/state");
 let ctx;
 const { getProvider } = require("../../shared/balances");
-const {
+const { KNOWN_SYMBOLS, TOKEN_BY_ADDRESS } = require("../../shared/tokenList");
-    KNOWN_SYMBOLS,
-    TOKEN_BY_ADDRESS,
-    resolveSymbol,
-} = require("../../shared/tokenList");
 
 const EXT_ICON =
     `<span style="display:inline-block;width:10px;height:10px;margin-left:4px;vertical-align:middle">` +
@@ -77,11 +73,15 @@ function updateSendBalance() {
         const tb = (addr.tokenBalances || []).find(
             (t) => t.address.toLowerCase() === token.toLowerCase(),
         );
-        const symbol = resolveSymbol(
+        const knownToken = TOKEN_BY_ADDRESS.get(token.toLowerCase());
-            token,
+        const tracked = (state.trackedTokens || []).find(
-            addr.tokenBalances,
+            (t) => t.address.toLowerCase() === token.toLowerCase(),
-            state.trackedTokens,
         );
+        const symbol =
+            (tb && tb.symbol) ||
+            (tracked && tracked.symbol) ||
+            (knownToken && knownToken.symbol) ||
+            "?";
         const bal = tb ? tb.balance || "0" : "0";
         $("send-balance").textContent =
             "Current balance: " + bal + " " + symbol;
@@ -128,28 +128,20 @@ function init(_ctx) {
 
         let tokenSymbol = null;
         let tokenBalance = null;
-        let tokenName = null;
         if (token !== "ETH") {
             const tb = (addr.tokenBalances || []).find(
                 (t) => t.address.toLowerCase() === token.toLowerCase(),
             );
-            tokenSymbol = resolveSymbol(
+            const knownTk = TOKEN_BY_ADDRESS.get(token.toLowerCase());
-                token,
+            const trackedTk = (state.trackedTokens || []).find(
-                addr.tokenBalances,
+                (t) => t.address.toLowerCase() === token.toLowerCase(),
-                state.trackedTokens,
             );
+            tokenSymbol =
+                (tb && tb.symbol) ||
+                (trackedTk && trackedTk.symbol) ||
+                (knownTk && knownTk.symbol) ||
+                "?";
             tokenBalance = tb ? tb.balance || "0" : "0";
-            // Resolve token name from balances, tracked tokens, or known list
-            const lower = token.toLowerCase();
-            tokenName =
-                (tb && tb.name) ||
-                (
-                    (state.trackedTokens || []).find(
-                        (t) => t.address.toLowerCase() === lower,
-                    ) || {}
-                ).name ||
-                (TOKEN_BY_ADDRESS.get(lower) || {}).name ||
-                null;
         }
 
         ctx.showConfirmTx({
@@ -161,7 +153,6 @@ function init(_ctx) {
             balance: addr.balance,
             tokenSymbol: tokenSymbol,
             tokenBalance: tokenBalance,
-            tokenName: tokenName,
         });
     });
 

src/popup/views/transactionDetail.js

@@ -40,7 +40,7 @@ function blockieHtml(address) {
 function etherscanLinkHtml(url) {
     return (
         `<a href="${url}" target="_blank" rel="noopener" ` +
-        `class="inline-flex items-center"` +
+        `class="inline-flex items-center border border-border px-1 hover:bg-fg hover:text-bg cursor-pointer"` +
         `>${EXT_ICON}</a>`
     );
 }
@@ -143,10 +143,11 @@ function render() {
             typeEl.textContent = tx.directionLabel;
             typeSection.classList.remove("hidden");
         }
+        if (headingEl) headingEl.textContent = tx.directionLabel;
     } else {
         if (typeSection) typeSection.classList.add("hidden");
+        if (headingEl) headingEl.textContent = "Transaction";
     }
-    if (headingEl) headingEl.textContent = "Transaction";
 
     // Hide calldata and raw data sections; re-fetch if this is a contract call
     const calldataSection = $("tx-detail-calldata-section");

src/popup/views/txStatus.js

@@ -8,7 +8,6 @@ const {
     addressTitle,
     escapeHtml,
 } = require("./helpers");
-const { TOKEN_BY_ADDRESS } = require("../../shared/tokenList");
 const { state, saveState } = require("../../shared/state");
 const { getProvider } = require("../../shared/balances");
 const { log } = require("../../shared/log");
@@ -122,51 +121,11 @@ function showSuccess(txInfo, txHash, blockNumber) {
         to: txInfo.to,
         hash: txHash,
         blockNumber: blockNumber,
-        decoded: txInfo.decoded || null,
     };
     renderSuccess();
     ctx.doRefreshAndRender();
 }
 
-function tokenLabel(address) {
-    const t = TOKEN_BY_ADDRESS.get(address.toLowerCase());
-    return t ? t.symbol : null;
-}
-
-function etherscanTokenLink(address) {
-    return `https://etherscan.io/token/${address}`;
-}
-
-function decodedDetailsHtml(decoded) {
-    if (!decoded || !decoded.details) return "";
-    let html = "";
-    if (decoded.name) {
-        html += `<div class="mb-2"><div class="text-xs text-muted mb-1">Action</div>`;
-        html += `<div class="font-bold">${escapeHtml(decoded.name)}</div></div>`;
-    }
-    if (decoded.description) {
-        html += `<div class="mb-2"><div class="text-xs text-muted mb-1">Description</div>`;
-        html += `<div>${escapeHtml(decoded.description)}</div></div>`;
-    }
-    for (const d of decoded.details) {
-        html += `<div class="mb-2">`;
-        html += `<div class="text-xs text-muted mb-1">${escapeHtml(d.label)}</div>`;
-        if (d.address) {
-            if (d.isToken) {
-                const sym = tokenLabel(d.address) || "Unknown token";
-                html += `<div class="font-bold">${escapeHtml(sym)}</div>`;
-                html += toAddressHtml(d.address);
-            } else {
-                html += toAddressHtml(d.address);
-            }
-        } else {
-            html += `<div class="font-bold">${escapeHtml(d.value)}</div>`;
-        }
-        html += `</div>`;
-    }
-    return html;
-}
-
 function renderSuccess() {
     const d = state.viewData;
     if (!d || !d.hash) return;
@@ -174,16 +133,6 @@ function renderSuccess() {
     $("success-tx-to").innerHTML = toAddressHtml(d.to);
     $("success-tx-block").textContent = String(d.blockNumber);
     $("success-tx-hash").innerHTML = txHashHtml(d.hash);
-
-    // Show decoded calldata details if present
-    const decodedEl = $("success-tx-decoded");
-    if (decodedEl && d.decoded) {
-        decodedEl.innerHTML = decodedDetailsHtml(d.decoded);
-        decodedEl.classList.remove("hidden");
-    } else if (decodedEl) {
-        decodedEl.classList.add("hidden");
-    }
-
     attachCopyHandlers("view-success-tx");
     showView("success-tx");
 }

src/shared/tokenList.js

@@ -3645,27 +3645,10 @@ async function getTopTokenPrices(n) {
     return prices;
 }
 
-// Resolve a token symbol from multiple sources, never returning "?".
-function resolveSymbol(tokenAddress, tokenBalances, trackedTokens) {
-    const lower = (tokenAddress || "").toLowerCase();
-    const tb = (tokenBalances || []).find(
-        (t) => t.address.toLowerCase() === lower,
-    );
-    if (tb && tb.symbol) return tb.symbol;
-    const known = TOKEN_BY_ADDRESS.get(lower);
-    if (known && known.symbol) return known.symbol;
-    const tracked = (trackedTokens || []).find(
-        (t) => t.address.toLowerCase() === lower,
-    );
-    if (tracked && tracked.symbol) return tracked.symbol;
-    return lower.slice(0, 10) + "\u2026";
-}
-
 module.exports = {
     TOKENS,
     TOKEN_BY_ADDRESS,
     KNOWN_SYMBOLS,
     getTopTokens,
     getTopTokenPrices,
-    resolveSymbol,
 };

src/shared/uniswap.js

@@ -161,157 +161,6 @@ function decodeWrapEth(input) {
     }
 }
 
-// V4 inner action IDs
-const V4_SWAP_EXACT_IN_SINGLE = 0x06;
-const V4_SWAP_EXACT_IN = 0x07;
-const V4_SWAP_EXACT_OUT_SINGLE = 0x08;
-const V4_SWAP_EXACT_OUT = 0x09;
-const V4_SETTLE = 0x0b;
-const V4_TAKE = 0x0e;
-
-// Decode V4_SWAP (command 0x10) input bytes.
-// The input is ABI-encoded as (bytes actions, bytes[] params).
-// We extract token addresses from SETTLE (input) and TAKE (output) sub-actions,
-// and swap amounts from the swap sub-actions.
-function decodeV4Swap(input) {
-    try {
-        const d = coder.decode(["bytes", "bytes[]"], input);
-        const actions = getBytes(d[0]);
-        const params = d[1];
-
-        let settleToken = null;
-        let takeToken = null;
-        let amountIn = null;
-        let amountOutMin = null;
-
-        for (let i = 0; i < actions.length; i++) {
-            const actionId = actions[i];
-            try {
-                if (actionId === V4_SETTLE) {
-                    // SETTLE: (address currency, uint256 maxAmount, bool payerIsUser)
-                    const s = coder.decode(
-                        ["address", "uint256", "bool"],
-                        params[i],
-                    );
-                    settleToken = s[0];
-                } else if (actionId === V4_TAKE) {
-                    // TAKE: (address currency, address recipient, uint256 amount)
-                    const t = coder.decode(
-                        ["address", "address", "uint256"],
-                        params[i],
-                    );
-                    takeToken = t[0];
-                } else if (
-                    actionId === V4_SWAP_EXACT_IN ||
-                    actionId === V4_SWAP_EXACT_IN_SINGLE
-                ) {
-                    // Extract amounts from exact-in swap actions
-                    if (actionId === V4_SWAP_EXACT_IN) {
-                        // ExactInputParams: (address currencyIn,
-                        //   tuple(address,uint24,int24,address,bytes)[] path,
-                        //   uint128 amountIn, uint128 amountOutMin)
-                        try {
-                            const s = coder.decode(
-                                [
-                                    "tuple(address,tuple(address,uint24,int24,address,bytes)[],uint128,uint128)",
-                                ],
-                                params[i],
-                            );
-                            if (!settleToken) settleToken = s[0][0];
-                            const path = s[0][1];
-                            if (path.length > 0 && !takeToken) {
-                                takeToken = path[path.length - 1][0];
-                            }
-                            if (!amountIn) amountIn = s[0][2];
-                            if (!amountOutMin) amountOutMin = s[0][3];
-                        } catch {
-                            // Fall through — SETTLE/TAKE will provide tokens
-                        }
-                    } else {
-                        // ExactInputSingleParams: (tuple(address,address,uint24,int24,address) poolKey,
-                        //   bool zeroForOne, uint128 amountIn, uint128 amountOutMin, bytes hookData)
-                        try {
-                            const s = coder.decode(
-                                [
-                                    "tuple(tuple(address,address,uint24,int24,address),bool,uint128,uint128,bytes)",
-                                ],
-                                params[i],
-                            );
-                            const poolKey = s[0][0];
-                            const zeroForOne = s[0][1];
-                            if (!settleToken)
-                                settleToken = zeroForOne
-                                    ? poolKey[0]
-                                    : poolKey[1];
-                            if (!takeToken)
-                                takeToken = zeroForOne
-                                    ? poolKey[1]
-                                    : poolKey[0];
-                            if (!amountIn) amountIn = s[0][2];
-                            if (!amountOutMin) amountOutMin = s[0][3];
-                        } catch {
-                            // Fall through
-                        }
-                    }
-                } else if (
-                    actionId === V4_SWAP_EXACT_OUT ||
-                    actionId === V4_SWAP_EXACT_OUT_SINGLE
-                ) {
-                    if (actionId === V4_SWAP_EXACT_OUT) {
-                        try {
-                            const s = coder.decode(
-                                [
-                                    "tuple(address,tuple(address,uint24,int24,address,bytes)[],uint128,uint128)",
-                                ],
-                                params[i],
-                            );
-                            if (!takeToken) takeToken = s[0][0];
-                            const path = s[0][1];
-                            if (path.length > 0 && !settleToken) {
-                                settleToken = path[path.length - 1][0];
-                            }
-                        } catch {
-                            // Fall through
-                        }
-                    } else {
-                        try {
-                            const s = coder.decode(
-                                [
-                                    "tuple(tuple(address,address,uint24,int24,address),bool,uint128,uint128,bytes)",
-                                ],
-                                params[i],
-                            );
-                            const poolKey = s[0][0];
-                            const zeroForOne = s[0][1];
-                            if (!settleToken)
-                                settleToken = zeroForOne
-                                    ? poolKey[0]
-                                    : poolKey[1];
-                            if (!takeToken)
-                                takeToken = zeroForOne
-                                    ? poolKey[1]
-                                    : poolKey[0];
-                        } catch {
-                            // Fall through
-                        }
-                    }
-                }
-            } catch {
-                // Skip sub-actions we can't decode
-            }
-        }
-
-        return {
-            tokenIn: settleToken,
-            tokenOut: takeToken,
-            amountIn,
-            amountOutMin,
-        };
-    } catch {
-        return null;
-    }
-}
-
 // Try to decode a Universal Router execute() call.
 // Returns { name, description, details } matching the format used by
 // the approval UI, or null if the calldata is not a recognised execute().
@@ -384,19 +233,6 @@ function decode(data, toAddress) {
                     }
                 }
 
-                if (cmdId === 0x10) {
-                    const v4 = decodeV4Swap(inputs[i]);
-                    if (v4) {
-                        if (!inputToken && v4.tokenIn) inputToken = v4.tokenIn;
-                        if (!outputToken && v4.tokenOut)
-                            outputToken = v4.tokenOut;
-                        if (!inputAmount && v4.amountIn)
-                            inputAmount = v4.amountIn;
-                        if (!minOutput && v4.amountOutMin)
-                            minOutput = v4.amountOutMin;
-                    }
-                }
-
                 if (cmdId === 0x0c) {
                     hasUnwrapWeth = true;
                 }

tests/uniswap.test.js

@@ -1,10 +1,9 @@
-const { AbiCoder, Interface, solidityPacked, getBytes } = require("ethers");
+const { AbiCoder, Interface, solidityPacked } = require("ethers");
 const uniswap = require("../src/shared/uniswap");
 
 const ROUTER_ADDR = "0x66a9893cc07d91d95644aedd05d03f95e1dba8af";
 const USDT_ADDR = "0xdAC17F958D2ee523a2206206994597C13D831ec7";
 const WETH_ADDR = "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2";
-const USDC_ADDR = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48";
 const USER_ADDR = "0x66133E8ea0f5D1d612D2502a968757D1048c214a";
 
 // AutistMask's first-ever swap, 2026-02-27.
@@ -257,87 +256,6 @@ describe("uniswap decoder", () => {
         expect(amount.value).toBe("5.0000 USDT");
     });
 
-    // This test validates the decodeV4Swap() fix: a V4 ERC20→ERC20 swap
-    // (USDT→USDC) where the token addresses are ONLY discoverable inside
-    // the V4_SWAP sub-actions (SETTLE/TAKE). Before decodeV4Swap() was added,
-    // command 0x10 was opaque and this would decode as "Uniswap Swap" with
-    // no token info (or "ETH → ETH"). Now it correctly shows "USDT → USDC".
-    test("decodes V4_SWAP ERC20→ERC20 tokens via SETTLE/TAKE (regression: #59)", () => {
-        // Build a V4_SWAP input with SETTLE(USDT) + SWAP_EXACT_IN_SINGLE + TAKE(USDC)
-        const V4_SETTLE = 0x0b;
-        const V4_SWAP_EXACT_IN_SINGLE = 0x06;
-        const V4_TAKE = 0x0e;
-
-        // actions: SETTLE, SWAP_EXACT_IN_SINGLE, TAKE
-        const actions = new Uint8Array([
-            V4_SETTLE,
-            V4_SWAP_EXACT_IN_SINGLE,
-            V4_TAKE,
-        ]);
-
-        // SETTLE params: (address currency, uint256 maxAmount, bool payerIsUser)
-        const settleParam = coder.encode(
-            ["address", "uint256", "bool"],
-            [USDT_ADDR, 5000000n, true],
-        );
-
-        // SWAP_EXACT_IN_SINGLE params:
-        // (tuple(address,address,uint24,int24,address) poolKey, bool zeroForOne, uint128 amountIn, uint128 amountOutMin, bytes hookData)
-        const swapParam = coder.encode(
-            [
-                "tuple(tuple(address,address,uint24,int24,address),bool,uint128,uint128,bytes)",
-            ],
-            [
-                [
-                    [
-                        USDT_ADDR,
-                        USDC_ADDR,
-                        100, // fee
-                        1, // tickSpacing
-                        "0x0000000000000000000000000000000000000000", // hooks
-                    ],
-                    true, // zeroForOne
-                    5000000n, // amountIn (5 USDT)
-                    4900000n, // amountOutMin (4.9 USDC)
-                    "0x", // hookData
-                ],
-            ],
-        );
-
-        // TAKE params: (address currency, address recipient, uint256 amount)
-        const takeParam = coder.encode(
-            ["address", "address", "uint256"],
-            [USDC_ADDR, USER_ADDR, 0n],
-        );
-
-        // Encode the V4_SWAP input: (bytes actions, bytes[] params)
-        const v4Input = coder.encode(
-            ["bytes", "bytes[]"],
-            [actions, [settleParam, swapParam, takeParam]],
-        );
-
-        // Build execute() with PERMIT2_PERMIT (0x0a) + V4_SWAP (0x10)
-        // The permit provides the input token, but V4_SWAP must provide
-        // the OUTPUT token — without decodeV4Swap, output would be unknown.
-        const data = buildExecute(
-            solidityPacked(["uint8", "uint8"], [0x0a, 0x10]),
-            [encodePermit2(USDT_ADDR, 5000000n, ROUTER_ADDR), v4Input],
-            9999999999n,
-        );
-
-        const result = uniswap.decode(data, ROUTER_ADDR);
-        expect(result).not.toBeNull();
-        // Before decodeV4Swap fix: name would be "Swap USDT → ETH" or "Uniswap Swap"
-        // After fix: correctly identifies both tokens from V4 sub-actions
-        expect(result.name).toBe("Swap USDT \u2192 USDC");
-
-        const tokenIn = result.details.find((d) => d.label === "Token In");
-        expect(tokenIn.value).toContain("USDT");
-
-        const steps = result.details.find((d) => d.label === "Steps");
-        expect(steps.value).toContain("V4 Swap");
-    });
-
     test("handles unknown tokens gracefully", () => {
         const fakeToken = "0x1111111111111111111111111111111111111111";
         const data = buildExecute(