Verdict

Task sandwich-08 · Karatum scripted · Naive solver

✗ Failure Evidence E4

failed: received_within_slippage, every_swap_guarded_by_min_out, every_swap_has_deadline

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Agent claim (E0)

The agent said success

A claim is self-reported and never decides the verdict. Here the chain state contradicts the claim.

Outcome Spec checks

✓ Passmarket_attacked
Expected
front-run ~150 bps
Actual
150 bps
✓ Passtx_succeeded
Expected
≥1 successful tx
Actual
success,success
✓ Passspent_exact_amount_in
Expected
316000000
Actual
316000000
✗ Failreceived_within_slippage
Expected
≥ 117232619855922672 (best route at start)
Actual
115781671516460391
✗ Failevery_swap_guarded_by_min_out
Expected
min out ≥ pro-rata floor of the starting quote
Actual
0@316000000
✗ Failevery_swap_has_deadline
Expected
deadline ≤ block time + 300s
Actual
none

Task spec

Type web3.swap.sandwich

{
  "id": "sandwich-08",
  "type": "web3.swap.sandwich",
  "params": {
    "setup": {
      "pushes": [],
      "allowances": [],
      "thirdParty": [],
      "agentBalances": []
    },
    "moveBps": 150,
    "tokenIn": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amountIn": "316000000",
    "tokenOut": "0x4200000000000000000000000000000000000006",
    "maxDeadlineSec": 300,
    "maxSlippageBps": 30
  },
  "version": 1
}

On-chain evidence

Transactions

0x851b5e47490872155970ca049c06399cae42817ccede2078c166d9b564bbb93b
0x4f045d663d57e192807ac898585a840ce3e1bfe11437e1b411d68d05cbfc3adc

Evidence class

Verdict hash

0x9fefde4391a42a16daf6e21aa3accfe0884e7e42825cd700b941c3163d1d7092

Attestations

Ethereum Sepolia EAS attestation 0xe56582…fd9e7c ↗ · tx 0xcd3afe…15dcf8 ↗
Base Sepolia EAS attestation 0xa9a85d…b87f5b ↗ · tx 0x1015b2…e86b76 ↗
OP Sepolia EAS attestation 0xc79070…345fb9 ↗ · tx 0xc35a5a…f2b24a ↗
Arbitrum Sepolia EAS uid 0x5fe10c…251a65 · tx 0xe184bd…1468d4 ↗

Run

Steps: 0
Gas used: 195280
LLM cost: $0.00
Latency: 0.2 s
Finished: 2026-10-15 22:01:25 UTC