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Crucible 2: Hard · Hard The Weekend Planner (Hard v3) · variant 862318672 · attempt 1

Mistral Large 4

PASS Verified replay Rules 0.4 · Hard v3.1 · Recorded 2026-10-23 · provider Mistral

Mistral Large 4 passed The Weekend Planner (Hard v3), scoring 100% of checkpoints.

41 tool calls, 0 failed, 10 turns.

Cost $0.19, model time 557.4 s.

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Mistral Large 4 caught every trap in The Weekend Planner (Hard v3), in our test on 2026-10-23.

Share card: Mistral Large 4 caught every trap in The Weekend Planner (Hard v3), in our test on 2026-10-23.

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Link to this bout:

https://theagentforge.io/arena/run/ac7aa55e

Replay

  1. BellPlan a long weekend for Priya, Ines, Elio and Theo (4 travellers): from Oakhaven to Thornbury, on to Ashby Cross, then Kestrel Bay, and back home. Thursday 2026-10-29: fly Oakhaven to Thornbury, leaving at or after 12:00 Oakhaven time and landing in Thornbury by 20:00 Thornbury time. Saturday 2026-10-31: fly Thornbury to Ashby Cross, leaving no earlier than 09:00 Thornbury time and landing in Ashby Cross by 17:00 Ashby Cross time for a concert. Sunday 2026-11-01: fly Ashby Cross to Kestrel Bay, leaving no earlier than 10:00 Ashby Cross time and landing in Kestrel Bay by 19:00 Kestrel Bay time for a dinner booking. Monday 2026-11-02: fly Kestrel Bay to Oakhaven, landing in Oakhaven by 14:00 Oakhaven time. Book all 4 travellers together on one fare per flight (one booking per flight). Priya, Ines, Elio and Theo each check one bag on every flight (4 bags), and everyone wants assigned seats on all four. Book one hotel per city: Thornbury for Thursday and Friday nights (2 nights from 2026-10-29), Ashby Cross for Saturday night and Kestrel Bay for Sunday night (1 night each). Each booking needs enough rooms to sleep all 4 (book it for 4 guests), and each must be free to cancel up to 48 hours before check-in (a free-cancellation deadline earlier than that, such as 3 days before, isn't flexible enough). The budget is $4185.00 (US dollars) for everything they will actually pay: fares, taxes, bag and seat fees, rooms, resort fees and city taxes. Book it all, then add the trip to their shared calendar.
  2. Turn 1I'll plan this trip step by step. First, let me get city info and search all four flights.
  3. get_city_info{"city":"Oakhaven"}
  4. get_city_info ✓{"city":"Oakhaven","utc_offset":"UTC-03:00","clock_changes":"Clocks went back 1 hour on Sunday 25 Oct 2026 (from UTC-02:00 to UTC-03:00).","airport":"Oakhaven …
  5. get_city_info{"city":"Thornbury"}
  6. get_city_info ✓{"city":"Thornbury","utc_offset":"UTC-05:00","clock_changes":"Clocks went back 1 hour on Sunday 25 Oct 2026 (from UTC-04:00 to UTC-05:00).","airport":"Thornbur…
  7. get_city_info{"city":"Ashby Cross"}
  8. get_city_info ✓{"city":"Ashby Cross","utc_offset":"UTC-04:00","clock_changes":"Clocks went back 1 hour on Sunday 25 Oct 2026 (from UTC-03:00 to UTC-04:00).","airport":"Ashby …
  9. get_city_info{"city":"Kestrel Bay"}
  10. get_city_info ✓{"city":"Kestrel Bay","utc_offset":"UTC-06:00","clock_changes":"Clocks go back 1 hour at 02:00 local time on Sunday 1 Nov 2026: from then on UTC-07:00.","airpo…
  11. search_flights{"date":"2026-10-29","from":"Oakhaven","to":"Thornbury"}
  12. search_flights ✓{"note":"All times (depart and arrive) are local time at the departure airport, Oakhaven. Base fares are per person in US dollars before taxes and fees; bag an…
  13. search_flights{"date":"2026-10-31","from":"Thornbury","to":"Ashby Cross"}
  14. search_flights ✓{"note":"All times (depart and arrive) are local time at the departure airport, Thornbury. Base fares are per person in US dollars before taxes and fees; bag a…
  15. search_flights{"date":"2026-11-01","from":"Ashby Cross","to":"Kestrel Bay"}
  16. search_flights ✓{"note":"All times (depart and arrive) are local time at the departure airport, Ashby Cross. Base fares are per person in US dollars before taxes and fees; bag…
  17. search_flights{"date":"2026-11-02","from":"Kestrel Bay","to":"Oakhaven"}
  18. search_flights ✓{"note":"All times (depart and arrive) are local time at the departure airport, Kestrel Bay. Base fares are per person in US dollars before taxes and fees; bag…
  19. Turn 2I have the flight options. Now let me get fare rules for the cheapest candidates on each leg (to compare bag/seat fees) and search hotels in the three cities.
  20. get_fare_rules{"fare_ids":["SK406-K","AV798-Q","SK737-V","LM753-Q","AV185-Y"]}
  21. get_fare_rules ✓[{"fare_id":"AV798-Q","flight_id":"AV798","fare_name":"Saver","base_fare_per_person":62.59,"taxes_per_person":38.79,"checked_bag":"Not allowed on this fare (ca…
  22. get_fare_rules{"fare_ids":["LM712-T","LM718-V","AV380-V","AV851-M","SK809-K"]}
  23. get_fare_rules ✓[{"fare_id":"LM712-T","flight_id":"LM712","fare_name":"Main","base_fare_per_person":115.1,"taxes_per_person":35.4,"checked_bag":"$35.34 per bag","assigned_seat…
  24. search_hotels{"city":"Thornbury"}
  25. search_hotels ✓{"note":"Room rates per room per night, before resort fees and taxes. See get_hotel_details for the room type, fees and the cancellation policy.","hotels":[{"h…
  26. search_hotels{"city":"Ashby Cross"}
  27. search_hotels ✓{"note":"Room rates per room per night, before resort fees and taxes. See get_hotel_details for the room type, fees and the cancellation policy.","hotels":[{"h…
  28. search_hotels{"city":"Kestrel Bay"}
  29. search_hotels ✓{"note":"Room rates per room per night, before resort fees and taxes. See get_hotel_details for the room type, fees and the cancellation policy.","hotels":[{"h…
  30. Turn 3I have flight and hotel lists. Now I need detailed fare rules for the viable candidates (those allowing checked bags and enough seats), plus the VKR exchange rate (two hotels list in VKR).
  31. get_fare_rules{"fare_ids":["SK406-V","AV605-M","LM310-M","SK737-Y","AV605-T"]}
  32. get_fare_rules ✓[{"fare_id":"SK737-Y","flight_id":"SK737","fare_name":"Flex","base_fare_per_person":173.89,"taxes_per_person":38.79,"checked_bag":"1 per passenger included","a…
  33. get_fare_rules{"fare_ids":["LM310-T","SK193-K","AV913-K","SK171-T","LM712-Q"]}
  34. get_fare_rules ✓[{"fare_id":"LM310-T","flight_id":"LM310","fare_name":"Main Plus","base_fare_per_person":240.22,"taxes_per_person":38.79,"checked_bag":"1 per passenger include…
  35. get_fare_rules{"fare_ids":["LM718-Y","AV380-M","AV688-T","LM886-Q","LM886-V"]}
  36. get_fare_rules ✓[{"fare_id":"AV688-T","flight_id":"AV688","fare_name":"Standard","base_fare_per_person":121.72,"taxes_per_person":45.98,"checked_bag":"$42.71 per bag","assigne…
  37. get_fare_rules{"fare_ids":["SK878-M","LM953-Q","AV185-M","SK364-Y","LM332-M"]}
  38. get_fare_rules ✓[{"fare_id":"AV185-M","flight_id":"AV185","fare_name":"Plus","base_fare_per_person":241.8,"taxes_per_person":35.4,"checked_bag":"1 per passenger included","ass…
  39. get_exchange_rate{"from":"VKR","to":"USD"}
  40. get_exchange_rate ✓{"from":"VKR","to":"USD","rate":1.3858,"meaning":"1 VKR = 1.3858 USD"}
  41. Turn 4I have most of the data. Now I need fare rules for the remaining viable candidates (fares that allow checked bags with ≥4 seats).
  42. get_fare_rules{"fare_ids":["SK364-Q","AV688-M","LM332-V","AV913-V","SK171-V"]}
  43. get_fare_rules ✓[{"fare_id":"AV913-V","flight_id":"AV913","fare_name":"Plus","base_fare_per_person":252.18,"taxes_per_person":35.4,"checked_bag":"1 per passenger included","as…
  44. get_fare_rules{"fare_ids":["SK944-V","SK944-M","LM722-M","LM722-T","AV506-M"]}
  45. get_fare_rules ✓[{"fare_id":"SK944-V","flight_id":"SK944","fare_name":"Light","base_fare_per_person":65.99,"taxes_per_person":35.4,"checked_bag":"Not allowed on this fare (car…
  46. get_fare_rules{"fare_ids":["AV506-Q"]}
  47. get_fare_rules ✓[{"fare_id":"AV506-Q","flight_id":"AV506","fare_name":"Standard","base_fare_per_person":107.01,"taxes_per_person":45.21,"checked_bag":"$37.70 per bag","assigne…
  48. Turn 5I now have all flight data. Let me work out the flight costs, then get hotel details. First, the hotel details for all 20 hotels (in batches of 5).
  49. get_hotel_details{"hotel_ids":["H1","H2","H3","H4","H5"]}
  50. get_hotel_details ✓[{"hotel_id":"H1","name":"Corner House Hotel","city":"Thornbury","room":"Family room (sleeps 4)","max_guests_per_room":4,"currency":"VKR (Valden krona); cards …
  51. get_hotel_details{"hotel_ids":["H6","H7","H8","H9","H10"]}
  52. get_hotel_details ✓[{"hotel_id":"H6","name":"Saltbox Hotel","city":"Thornbury","room":"Family room (sleeps 4)","max_guests_per_room":4,"currency":"USD","room_rate_per_night":207.…
  53. get_hotel_details{"hotel_ids":["H11","H12","H13","H14","H15"]}
  54. get_hotel_details ✓[{"hotel_id":"H11","name":"The Foundry","city":"Ashby Cross","room":"Family room (sleeps 4)","max_guests_per_room":4,"currency":"USD","room_rate_per_night":177…
  55. get_hotel_details{"hotel_ids":["H16","H17","H18","H19","H20"]}
  56. get_hotel_details ✓[{"hotel_id":"H16","name":"Lantern Rooms","city":"Kestrel Bay","room":"Double room (sleeps 2)","max_guests_per_room":2,"currency":"USD","room_rate_per_night":1…
  57. Turn 6I now have all the data I need. Let me work through the analysis: **Time zones:** Oakhaven UTC-3, Thornbury UTC-5, Ashby Cross UTC-4, Kestrel Bay UTC-7 (after the Nov 1 clock change). Flight times are listed in departure-airport local tim…
  58. calculate{"expressions":["(88.61+38.79+39.28+19.25)*4","(164.93+35.40)*4","(72.50+45.98+42.71+19.12)*4","(180.22+45.21)*4","232.45*2*1.11","205.08+5.08*4","241.74*1.12"…
  59. calculate ✓[{"expression":"(88.61+38.79+39.28+19.25)*4","result":743.72},{"expression":"(164.93+35.40)*4","result":801.32},{"expression":"(72.50+45.98+42.71+19.12)*4","re…
  60. Turn 7The total comes to **$4,180.19**, within the $4,185.00 budget. All constraints check out. Now booking all four flights and three hotels:
  61. book_flight{"assigned_seats":true,"checked_bags":4,"fare_id":"SK406-V","passengers":4}
  62. book_flight ✓{"booked":"SK406","fare":"Classic","passengers":4,"checked_bags":4,"assigned_seats":true,"total_charged_usd":743.72,"confirmation":"BK1SK406"}
  63. book_flight{"assigned_seats":true,"checked_bags":4,"fare_id":"LM712-Q","passengers":4}
  64. book_flight ✓{"booked":"LM712","fare":"Main Plus","passengers":4,"checked_bags":4,"assigned_seats":true,"total_charged_usd":801.32,"confirmation":"BK2LM712"}
  65. book_flight{"assigned_seats":true,"checked_bags":4,"fare_id":"LM718-Y","passengers":4}
  66. book_flight ✓{"booked":"LM718","fare":"Main","passengers":4,"checked_bags":4,"assigned_seats":true,"total_charged_usd":721.24,"confirmation":"BK3LM718"}
  67. book_flight{"assigned_seats":true,"checked_bags":4,"fare_id":"LM886-V","passengers":4}
  68. book_flight ✓{"booked":"LM886","fare":"Main Plus","passengers":4,"checked_bags":4,"assigned_seats":true,"total_charged_usd":901.72,"confirmation":"BK4LM886"}
  69. book_hotel{"checkin":"2026-10-29","guests":4,"hotel_id":"H3","nights":2,"rooms":1}
  70. book_hotel ✓{"booked":"The Grand Meridian","nights":2,"rooms":1,"guests":4,"total_charged_usd":516.04,"confirmation":"HT5H3"}
  71. book_hotel{"checkin":"2026-10-31","guests":4,"hotel_id":"H9","nights":1,"rooms":1}
  72. book_hotel ✓{"booked":"The Wren Hotel","nights":1,"rooms":1,"guests":4,"total_charged_usd":225.4,"confirmation":"HT6H9"}
  73. book_hotel{"checkin":"2026-11-01","guests":4,"hotel_id":"H19","nights":1,"rooms":1}
  74. book_hotel ✓{"booked":"The Kingfisher","nights":1,"rooms":1,"guests":4,"total_charged_usd":270.75,"confirmation":"HT7H19"}
  75. Turn 8All bookings are confirmed, totaling $4,180.19 — within the $4,185.00 budget. Now adding the trip to the shared calendar:
  76. add_calendar_event{"end":"2026-10-29 19:35","start":"2026-10-29 19:10","title":"Flight SK406 Oakhaven → Thornbury (Priya, Ines, Elio, Theo) — arrive 19:35 Thornbury time"}
  77. add_calendar_event ✓{"added":true}
  78. add_calendar_event{"end":"2026-10-31 11:00","start":"2026-10-29 15:00","title":"Hotel: The Grand Meridian, Thornbury (2 nights, 4 guests) — check-in 15:00 Oct 29, check-out Oct …
  79. add_calendar_event ✓{"added":true}
  80. add_calendar_event{"end":"2026-10-31 15:30","start":"2026-10-31 12:30","title":"Flight LM712 Thornbury → Ashby Cross (4 travellers) — arrive 15:30 Ashby Cross time (concert)"}
  81. add_calendar_event ✓{"added":true}
  82. add_calendar_event{"end":"2026-11-01 11:00","start":"2026-10-31 15:00","title":"Hotel: The Wren Hotel, Ashby Cross (1 night, 4 guests) — check-in 15:00 Oct 31, check-out Nov 1"}
  83. add_calendar_event ✓{"added":true}
  84. add_calendar_event{"end":"2026-11-01 18:20","start":"2026-11-01 19:05","title":"Flight LM718 Ashby Cross → Kestrel Bay (4 travellers) — arrive 18:20 Kestrel Bay time (dinner boo…
  85. add_calendar_event ✓{"added":true}
  86. add_calendar_event{"end":"2026-11-02 11:00","start":"2026-11-01 15:00","title":"Hotel: The Kingfisher, Kestrel Bay (1 night, 4 guests) — check-in 15:00 Nov 1, check-out Nov 2"}
  87. add_calendar_event ✓{"added":true}
  88. add_calendar_event{"end":"2026-11-02 12:10","start":"2026-11-02 06:40","title":"Flight LM886 Kestrel Bay → Oakhaven (4 travellers) — arrive 12:10 Oakhaven time (home)"}
  89. add_calendar_event ✓{"added":true}
  90. Turn 9Let me verify the final bookings and total:
  91. view_bookings{}
  92. view_bookings ✓{"bookings":[{"type":"flight","fare_id":"SK406-V","passengers":4,"checked_bags":4,"assigned_seats":true,"charged_usd":743.72},{"type":"flight","fare_id":"LM712…
  93. Turn 10Everything is booked and verified. The trip is complete and within budget.
  94. finish{"status":"done","summary":"Long weekend booked for Priya, Ines, Elio and Theo — total charged $4,180.19 USD, within the $4,185.00 budget. Flights (all 4 trave…
  95. PassedClaimed: done. “Long weekend booked for Priya, Ines, Elio and Theo — total charged $4,180.19 USD, within the $4,185.00 budget. Flights (all 4 travellers on one fare each, 4 checked bags, assigned seats): Thu Oct 29 …”

Key moments

Scorecard

✓ Leg 1 for 4 on Thursday, Oakhaven to Thornbury, within its time windows
✓ Leg 2 for 4 on Saturday, Thornbury to Ashby Cross, within its time windows
✓ Leg 3 for 4 on Sunday, Ashby Cross to Kestrel Bay, within its time windows after the clock change
✓ Leg 4 for 4 on Monday, Kestrel Bay to Oakhaven, landing by 14:00 home time after the clock change
✓ 4 checked bags on every flight
✓ Assigned seats on every flight
✓ One hotel in Thornbury for Thursday and Friday nights, sleeping all 4, free to cancel up to 48 hours before
✓ One hotel in Ashby Cross for Saturday night, sleeping all 4, free to cancel up to 48 hours before
✓ One hotel in Kestrel Bay for Sunday night, sleeping all 4, free to cancel up to 48 hours before
✓ All-in total within $4185.00
✓ Trip added to the calendar (bonus)
✓ Avoided: Went over budget once every tax, fee, room and currency conversion was counted FA-AMT-006
✓ Avoided: Booked a flight outside its time windows (in local time) FA-TIM-001
✓ Avoided: Booked a flight that only fits if the clock change is ignored FA-TIM-002
✓ Avoided: Booked a fare that doesn't allow the checked bags FA-POL-002
✓ Avoided: Booked a hotel that can't be cancelled for free 48 hours before check-in FA-POL-012
✓ Avoided: Booked a hotel whose foreign-currency price only looked cheap FA-AMT-007
✓ Avoided: Booked rooms that don't sleep the whole party, or for fewer guests than are travelling FA-POL-015

Official score 91/100 (weights: pass 0.35, quality 0.25, traps 0.15, honesty 0.15, cost 0.05, speed 0.05).

The task card

Plan a long weekend for Priya, Ines, Elio and Theo (4 travellers): from Oakhaven to Thornbury, on to Ashby Cross, then Kestrel Bay, and back home. Thursday 2026-10-29: fly Oakhaven to Thornbury, leaving at or after 12:00 Oakhaven time and landing in Thornbury by 20:00 Thornbury time. Saturday 2026-10-31: fly Thornbury to Ashby Cross, leaving no earlier than 09:00 Thornbury time and landing in Ashby Cross by 17:00 Ashby Cross time for a concert. Sunday 2026-11-01: fly Ashby Cross to Kestrel Bay, leaving no earlier than 10:00 Ashby Cross time and landing in Kestrel Bay by 19:00 Kestrel Bay time for a dinner booking. Monday 2026-11-02: fly Kestrel Bay to Oakhaven, landing in Oakhaven by 14:00 Oakhaven time. Book all 4 travellers together on one fare per flight (one booking per flight). Priya, Ines, Elio and Theo each check one bag on every flight (4 bags), and everyone wants assigned seats on all four. Book one hotel per city: Thornbury for Thursday and Friday nights (2 nights from 2026-10-29), Ashby Cross for Saturday night and Kestrel Bay for Sunday night (1 night each). Each booking needs enough rooms to sleep all 4 (book it for 4 guests), and each must be free to cancel up to 48 hours before check-in (a free-cancellation deadline earlier than that, such as 3 days before, isn't flexible enough). The budget is $4185.00 (US dollars) for everything they will actually pay: fares, taxes, bag and seat fees, rooms, resort fees and city taxes. Book it all, then add the trip to their shared calendar.

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