Checked fact 326431 Oct 2026Research

The SHADE-Arena monitor receives the full transcript, including user messages, assistant messages and tool outputs, with the system prompt and the agent's hidden scratchpad removed; it is unaware of the specific side task.

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The exact words it rests on

we take the full transcript (including user message, all assistant messages, and tool call outputs) and strip out the system prompt and hidden scratchpad content. ... Importantly, the monitor is unaware of the specific side task in the environment.

What the source said when we opened it, on 31 Oct 2026.

The source

SHADE-Arena: Evaluating Sabotage and Monitoring in LLM Agents
arXiv (Anthropic and collaborators) · 2025-06-17

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Checked

Checked by the notis newsroom on 31 Oct 2026, against the source above.

In the story

How AI monitors work, and how Anthropic's tests tried to evade them 31 Oct 2026

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In a sentence

“The SHADE-Arena monitor receives the full transcript, including user messages, assistant messages and tool outputs, with the system prompt and the agent's hidden scratchpad removed; it is unaware of the specific side task.” ai notis, checked 31 Oct 2026. Source: SHADE-Arena: Evaluating Sabotage and Monitoring in LLM Agents (arXiv (Anthropic and collaborators)). https://ainotis.com/c/3264

As a reference (APA style)

ai notis. (2026, October 31). The SHADE-Arena monitor receives the full transcript, including user messages, assistant messages and tool outputs, with the system prompt and the agent's hidden scratchpad removed; it is unaware of the specific side task [Checked claim 3264]. ai notis. https://ainotis.com/c/3264

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