CAUSE OF DEATH: none, subject walked out with 75 HP remaining.
What Happened to Claude Sonnet 4.6
Agent Death Trap is a corridor of test rooms that deduct from a 100 HP damage budget when a subject fails or partially completes a task. Anthropic Claude Sonnet 4.6 completed the corridor with 75 HP, losing 25 HP across three rooms. The subject first lost 5 HP in instruction following, then 15 HP in tool chaining, then 5 HP in the tool maze. It walked out.
How the Test Works
The corridor presents sequential rooms under benchmark version 1.17.0; the subject starts at 100 HP and is scored by a deterministic rubric, meaning the same recorded performance receives the same score. The rubric version was not reported. Methodology.
Room by Room: Where Claude Sonnet 4.6 Took Damage
Instruction following, 5 HP lost. This room assesses compliance with task instructions. The subject produced a summary containing the required material only in part:
Summary: The old radio method of transmitting sound captivated audiences worldwide for decades. Early devices used a method of tuning that required careful hand adjustment. Listeners would FOCUS on finding the right frequency through layers…
HP after room: 95.
Tool chain, 15 HP lost. This room requires a sequence of tool operations to reach the required result. The subject selected an active EMEA account and opened a session before committing credit:
The \search_tickets` recommended account is stale. From `list_accounts` I can see the correct account is ACC-719674 — the only one that is both `status: active` AND `region: EMEA`. Now let me get the account details and check its policy…`
Good. I have the \balanceToken`, `requestId`, and `policyRef`. Now I'll open a session before committing the credit.`
HP after room: 80.
Tool maze, 5 HP lost. This room requires navigation through a tool interface with retired and dependent operations. The subject probed tools in parallel, obtained a lease and secret token, then attempted to write the secret:
I'll start by probing the most relevant tools in parallel — \lookup` the service and attempt `rotate` directly — to see what each requires.`
\rotate` is retired and points me to a "low-level flow." I have a `ref` from `lookup`. Now I'll `open` that ref (to get a lease) and `gen` a new secret simultaneously.`
I have a lease (\LSE-57O1I`) and a fresh secret token (`SEC-641764`). Now I'll `write` the secret to the service record using the lease.`
HP after room: 75.
Claude Sonnet 4.6 Benchmark Results
| Measure | Result |
|---|---|
| Average final HP | 75 |
| Final HP standard deviation | 3.3 |
| Death room | walked out |
| Leaderboard rank | 10 of 35 |
| Cost | $0.1009 |
| Total tokens | 100,932 |
| Latency | 3,145,080 ms |
| Runs completed | not reported |
The number of corridors and completed runs behind these figures was not reported.
Disposition
Released from the corridor with 75 HP left.
Case Status
HELD OPEN