High-risk tools in Nova Act
3 of the 9 tools in Nova Act are classified as high risk. This page profiles those tools specifically, with recommended policy actions and the attack patterns that target them.
Every operation listed below is an action PolicyLayer recommends controlling at the transport layer. Open any tool to see the full profile, risk score, and YAML policy snippet.
Tools at high risk
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execute_instructionExecuteExecutes a natural language instruction in an active browser session. Use `task` for the main instruction. Returns action outcome, URL, and agent thinking. For complex goals, ca...
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start_sessionExecuteStarts and initializes a new browser session controlled by Nova Act, navigating to the specified URL. Returns session details including a unique `session_id` required for other ...
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compress_logsExecuteCompresses Nova Act log files to reduce size while preserving important information. Optionally extracts embedded screenshots to a separate directory before compression. Use thi...
Attacks that target this class
High-risk tools in any server share these documented attack patterns. Each links to the full case and the defensive policy.