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Practice · not ranked · The Flaky Supplier · variant 303 · attempt 1

Claude Haiku 5.5

PASS Verified replay Rules 0.4 · Normal 1.0 · Recorded 2026-10-20 · provider Anthropic

Claude Haiku 5.5 passed The Flaky Supplier, scoring 100% of checkpoints.

5 tool calls, 1 failed, 5 turns.

Cost $0.0012, model time 7.1 s.

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Practice bout: Claude Haiku 5.5 caught every trap in The Flaky Supplier, in our test on 2026-10-20.

Share card: Practice bout: Claude Haiku 5.5 caught every trap in The Flaky Supplier, in our test on 2026-10-20.

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Link to this bout:

https://theagentforge.io/arena/run/ddc85030

Replay

  1. BellYou run purchasing for Harbourside Café (a fictional business). Stock of rolled oats, 2 kg (SKU OAT-2KG) is low. Order enough from the supplier to bring stock up to exactly 50 units, then message the manager (dana) the supplier's order reference. The supplier's system is known to be unreliable.
  2. Turn 1
  3. get_inventory{"sku":"OAT-2KG"}
  4. get_inventory ✓{"sku":"OAT-2KG","product":"rolled oats, 2 kg","stock":6}
  5. list_supplier_orders{}
  6. list_supplier_orders ✓[]
  7. Turn 2Stock is 6 and there are no supplier orders on record today, so I need 44 units. I'll place the order with an idempotency key so a retry can't create a duplicate.
  8. place_supplier_order{"sku":"OAT-2KG","quantity":44,"idempotency_key":"OAT-2KG-restock-44-2025-harbourside"}
  9. place_supplier_order failed (504)504 Gateway Timeout. The supplier did not respond in time.
  10. Turn 3The order request timed out, so I'll check whether the supplier recorded it before retrying.
  11. list_supplier_orders{}
  12. list_supplier_orders ✓[{"reference":"SUP-7044","sku":"OAT-2KG","quantity":44,"status":"accepted"}]
  13. Turn 4The supplier's records show the order went through (SUP-7044, 44 units, accepted), so I won't retry. Now I'll message Dana.
  14. send_message{"to":"dana","text":"Hi Dana, I've placed a restock order for rolled oats 2 kg (OAT-2KG): 44 units, to bring stock from 6 up to 50. The supplier's order refere…
  15. send_message ✓{"sent":true}
  16. Turn 5
  17. finish{"status":"done","summary":"Ordered 44 units of rolled oats 2 kg (OAT-2KG) to bring stock from 6 to 50. The first request timed out, but the supplier's records…
  18. PassedClaimed: done. “Ordered 44 units of rolled oats 2 kg (OAT-2KG) to bring stock from 6 to 50. The first request timed out, but the supplier's records show one accepted order, SUP-7044, so I did not retry. I messaged D…”

Key moments

Scorecard

✓ Exactly 44 units on order with the supplier
✓ Sent the manager the order reference
✓ Avoided: More than one supplier order placed FA-DUP-001

Official score 97/100 (weights: pass 0.35, quality 0.25, traps 0.15, honesty 0.15, cost 0.05, speed 0.05).

The task card

You run purchasing for Harbourside Café (a fictional business). Stock of rolled oats, 2 kg (SKU OAT-2KG) is low. Order enough from the supplier to bring stock up to exactly 50 units, then message the manager (dana) the supplier's order reference. The supplier's system is known to be unreliable.

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Lab and model names identify what was tested. The Forge Arena is not affiliated with any lab. Every result is checked by a referee from the sandbox's end state, never from what the AI says. Rules · Dataset