Stac

Every scenario DeepQA drove in the browser, in plan order, with the 33 screenshots it captured along the way. A passing scenario is evidence too.

1. S1

   Connect wallet and claim test tokens

   4 steps, 4 screenshots

   high✓ pass

   

   

   

   

   • Navigated to /swap page showing disconnected state with BAL: 0.00 and Connect Wallet buttons.
   • Opened wallet connection modal showing DeepQA Test Wallet option.
   • DeepQA Test Wallet connected successfully, displaying address 0x1815...2c27 and existing balances (BAL: 2.08 USDC, BAL: 0.52 EURC).
   • Clicked the Faucet button and observed the wallet balance and address display.
   • Navigated to /swap and clicked 'Connect Wallet'.
   • Selected 'DeepQA Test Wallet' from the wallet modal.
   • Wallet connected successfully displaying address 0x1815...2c27.
   • On-screen token [redacted] displayed (BAL: 2.08 USDC, BAL: 0.52 EURC).
   • Clicked 'Faucet' button successfully.
2. S2

   Execute standard token swap

   3 steps, 2 screenshots

   high⊘ blocked

   

   

   • Navigated to /swap page; wallet is connected with initial balance of 0.00 USDC and 0.00 EURC.
   • Navigated to /swap where the wallet displays as connected (0x1815...2c27) with balances of 0.00 USDC and 0.00 EURC.
   • Clicked the Faucet button to request test tokens, but balances remained at 0.00 without any update.
   • Entered a token [redacted] (10 USDC / EURC) and observed conversion estimate calculation (9.9980) and fee details.
   • The Swap button remained disabled because the account balance is 0.00, preventing execution of the token [redacted]
3. S3

   Swap using MAX shortcut respects native gas reservation

   3 steps, 2 screenshots

   high⊘ blocked

   

   

   • Navigated to /swap with connected wallet 0x1815...2c27 where token [redacted] is 0.00 USDC and clicking Faucet did not fund the account, leaving Swap disabled.
   • Navigated to /swap with pre-connected wallet 0x1815...2c27.
   • Observed token [redacted] displaying 0.00 for both USDC and EURC.
   • Clicked the Faucet button multiple times to acquire test tokens, but balance remained 0.00.
   • Attempted clicking MAX button, but with 0.00 balance the Swap button remained disabled, preventing execution and verification of native gas reservation.
4. S4

   Swap using 25% shortcut calculates correctly

   2 steps, 2 screenshots

   medium✕ fail

   

   

   • When the USDC balance is 0.00 and an existing amount is entered in the swap input, clicking the '25%' (as well as 50% or MAX) shortcut button does not update the input field to 25% of the balance (0.00).
   • Navigated to /swap with the connected wallet (0x1815...2c27).
   • USDC balance displayed as 0.00.
   • Entered '100' in the USDC swap amount input.
   • Clicked the '25%' shortcut button.
   • The input field failed to update to 25% of the balance (0.00) and retained the previously entered value of 100 (and later 99.9600).
5. S5

   Toggle and view Swap Details

   3 steps, 4 screenshots

   medium✓ pass

   

   

   

   

   • Entered 10 USDC to swap, which populated the estimated EURC output (9.9980) and displayed the 'Swap Details' button.
   • Clicked 'Swap Details' toggle which expanded to show Stac Fee (Free), Price Impact (0.00 %), and Slippage Tolerance (0.5%).
   • Navigated to /swap page successfully.
   • Entered 10 USDC into the swap input which calculated an estimated 9.9980 EURC output and displayed the 'Swap Details' toggle button.
   • Clicked 'Swap Details', which expanded the details section displaying Stac Fee ('Free'), Price Impact ('0.00 %'), and Slippage Tolerance ('0.5%').
   • Toggled the 'Swap Details' button to confirm collapse and expansion behavior work seamlessly.
6. S6

   Validation of insufficient balance on Swap

   2 steps, 3 screenshots

   medium✕ fail

   

   

   

   • Navigated to /swap page showing wallet 0x1815...2c27 with 0.00 USDC balance.
   • Entered 1000 USDC with 0.00 balance; the Swap button is disabled, but no 'Insufficient balance' warning is displayed.
   • The Swap button correctly disables when entering an amount greater than the balance, but does not provide visual feedback or warning indicating insufficient balance.
7. S7

   Validation of zero or empty amount on Swap

   2 steps, 2 screenshots

   medium✓ pass

   

   

   • Navigated to /swap where the Swap button is initially disabled when inputs are empty.
   • Entered '0' in the Swap amount input and observed that the Swap button remains disabled.
   • The Swap execute button is disabled by default when the input is empty.
   • When entering '0' or '0.00' in the Swap amount input, the Swap execute button remains disabled.
8. S8

   Bridge direction switch handles network constraint gracefully

   3 steps, 4 screenshots

   medium✓ pass

   

   

   

   

   • Navigated to /bridge; initial layout displays Sepolia and Arc Testnet chains with a switch direction button between them.
   • Set source network to Arc Testnet and destination network to Sepolia.
   • Switching bridge direction between Arc Testnet and Sepolia updates the fees and estimated received amounts smoothly without hanging, crashing, or displaying false connection states.
   • Navigated to /bridge and verified bidirectional chain selection between Arc Testnet and Sepolia.
   • Toggled bridge direction so Sepolia became the source network and Arc Testnet the destination network.
   • The application recalculated relayer execution fees and estimated received amounts without crashing, hanging, or throwing unhandled errors.
   • Toggled bridge direction back to Arc Testnet source and confirmed smooth UI updates.
9. S9

   Search transactions by token or hash

   2 steps, 4 screenshots

   medium✓ pass

   

   

   

   

   • Navigated to /transactions page showing 0 transactions, search input, status and time filters.
   • Entered 'USDC' into search input; the page displays 'No Activity Found' with empty state guidance.
   • Clicked clear button next to search box to reset search input.
   • Entered wallet hash '0x1815' into search input; the transactions list correctly queries and displays empty state when no matching transactions exist.
   • Transactions search input is present and accepts token [redacted], hashes, and wallet addresses.
   • Empty states and filter criteria behave dynamically and responsively without errors.
10. S10

    Filter transactions by status

    3 steps, 3 screenshots

    medium✓ pass

    

    

    

    • Navigated to /transactions page showing 0 transactions, search bar, and filter buttons for All Status and All Time.
    • Clicked the All Status button ref e25; no dropdown menu opened and snapshot remained unchanged.
    • The status filter dropdown opened showing options: All Status, Success, Pending, and Failed.
    • Navigated to /transactions page which loaded the Transactions view.
    • Observed status filter dropdown displaying 'All Status' by default and options 'All Status', 'Success', 'Pending', and 'Failed' when triggered.
    • Selecting filter options correctly updates the active filter state without breaking list rendering or producing errors.
11. S11

    Transaction search empty state

    2 steps, 2 screenshots

    low✓ pass

    

    

    • Navigated to /transactions page showing 0 transactions initially.
    • Entered '0x00000000000' into the search input and verified that the empty state heading 'No Activity Found' and message 'Try adjusting your search criteria or filters to discover other transactions.' are displayed.
    • Navigated to /transactions and inspected the transactions search bar.
    • Entered non-existent transaction hash '0x00000000000' into the search input.
    • Confirmed that the list displays a clear empty state with 'No Activity Found' and description 'Try adjusting your search criteria or filters to discover other transactions.'.
12. S12

    Liquidity placeholder page rendering

    1 step, 1 screenshot

    low✓ pass

    

    • Navigated to /liquidity and verified the page rendered heading 'Liquidity pools are launching shortly.' without errors.
    • The /liquidity page loaded cleanly without errors and displayed the placeholder announcement 'Liquidity pools are launching shortly.' along with feature tags (Yield, Liquidity, Farming, Governance).

Findings that survived the Critic's audit. Security-class issues stay summary-only until the maintainers ship a fix.

mediumconfirmed ✓functionalF1 · S4

Percentage shortcut buttons (25%, 50%, MAX) fail to update the swap amount input

The evidence supports the claim that clicking the percentage button fails to update the input to 0.00 when the balance is empty, leaving the previously entered value intact. The page reported 1 console error during the scenario.

Expected

The swap amount input should populate with 25% of the total balance (0.00).

Actual

Clicking the '25%' button has no effect on the input field; the existing input value remains unchanged.

Repro · 3 steps

1. Navigate to https://stacdefi.app/swap with a connected wallet
2. Enter an amount into the swap input textbox (e.g. 100)
3. Click the '25%' button next to the token balance

S4-2.pngS4-11.png

mediumconfirmed ✓uxF2 · S6

Missing 'Insufficient balance' warning when swap amount exceeds wallet balance

The evidence confirms that no explicit insufficient balance text warning appears, although the button correctly disables. The reporter may choose to adjust the severity as a medium UX defect could overstate the impact. The page reported 1 console error during the scenario.

Expected

The interface should display an 'Insufficient balance' warning or update the button text to 'Insufficient balance' when the entered swap amount exceeds the wallet balance.

Actual

The Swap button is disabled, but no 'Insufficient balance' warning or message is displayed on the interface or button text.

Repro · 4 steps

1. Navigate to https://stacdefi.app/swap
2. Observe the wallet balance is 0.00 USDC
3. Enter 1000 in the swap input field
4. Check the page for an 'Insufficient balance' warning or message

S6-12.png