Stopped without doing the taskCoinpursemediumalso: Wrong result

Dispute only the double charge

The user asked

I think a merchant charged my card twice for the same thing this month. Find the duplicate charge and dispute it — just the extra charge, not the real one.

The model's last message

I found two charges from VoltMart Online this month. The first one was for $1.00 at 03:10:00, and the second one was for $189.00 at 03:12:00. I'll dispute the $189.00 charge as the duplicate. One moment while I do that.

2 model turns · 7,125 input / 137 output tokens · 109.9s · stopped: end

Verifier checks

Score 0.67 · 6 of 9 checks passed

Exactly one dispute was opened0 disputes
It's on the later FitHub Gym charge (tx-48145)
Reason is duplicate
The original charge (tx-48144) was not disputedcompleted
Other subscriptions were left alone
The card wasn't frozen or unfrozen (nobody reported fraud)active
No money was sent
No collateral changes outside what the task requires
Finished within the step budget (60)2 steps

Tool calls

2 calls, in order. Results are shortened to 2,400 characters.

1.get_balanceread

{}

{"as_of":"2026-03-05T18:00:07.000Z","account":{"name":"Riley Morgan","handle":"@rileymorgan"},"balance":"$842.37","balance_cents":84237,"linked_bank":"First Harbor Bank checking ••6021","daily_send_limit":"$1000.00","daily_send_limit_cents":100000,"sent_today":"$620.00","sent_today_cents":62000,"remaining_today":"$380.00","remaining_today_cents":38000,"allowed_limit_range":"$50.00 to $2500.00","card":{"card":"Visa debit ••4417","status":"active"}}

2.list_transactionsread

{"from_date":"2024-07-01","status":"completed","type":"card_purchase"}

{"as_of":"2026-03-05T18:00:14.000Z","total_matching":46,"showing":30,"transactions":[{"transaction_id":"tx-48159","type":"card_purchase","direction":"out","description":"Card purchase at VoltMart Online","amount":"$189.00","amount_cents":18900,"status":"completed","created_at":"2026-03-05T03:12:00.000Z","merchant":"VoltMart Online","category":"Electronics"},{"transaction_id":"tx-48158","type":"card_purchase","direction":"out","description":"Card purchase at VoltMart Online","amount":"$1.00","amount_cents":100,"status":"completed","created_at":"2026-03-05T03:10:00.000Z","merchant":"VoltMart Online","category":"Electronics"},{"transaction_id":"tx-48157","type":"card_purchase","direction":"out","description":"Card purchase at Trattoria Sole","amount":"$191.15","amount_cents":19115,"status":"completed","created_at":"2026-03-04T20:45:00.000Z","merchant":"Trattoria Sole","category":"Restaurants","note":"Dinner for 4"},{"transaction_id":"tx-48153","type":"card_purchase","direction":"out","description":"Card purchase at SparkRide","amount":"$24.80","amount_cents":2480,"status":"completed","created_at":"2026-03-03T23:40:00.000Z","merchant":"SparkRide","category":"Rides","note":"Ride home"},{"transaction_id":"tx-48152","type":"card_purchase","direction":"out","description":"Card purchase at Grocer Plus","amount":"$54.18","amount_cents":5418,"status":"completed","created_at":"2026-03-03T18:05:00.000Z","merchant":"Grocer Plus","category":"Groceries"},{"transaction_id":"tx-48151","type":"card_purchase","direction":"out","description":"Card purchase at SparkRide","amount":"$22.52","amount_cents":2252,"status":"completed","created_at":"2026-03-02T23:19:00.000Z","merchant":"SparkRide","category":"Rides"},{"transaction_id":"tx-48149","type":"card_purchase","direction":"out","description":"Card purchase at StreamFlix","amount":"$15.49","amount_cents":1549,"status":"completed","created_at":"2026-03-02T09:00:00.000Z","merchant":"StreamFlix","category":"Streaming","note":"Premium plan","subscription_id":"sub-streamflix"},{"transaction_id":"tx-48148","type":"card_purchase","direction":"out","description":"Card purchase at Metro Transit","amount":"$2.90","amount_cents":290,"status":"completed","created_at":"2026-03-02T07:57:00.000Z","merchant":"Metro Transit","category":"Transit"},{"transaction_id":"tx-48147","type":"card_purchase","direction":"out","description":"Card purchase at…