Critical-risk tools in MCP Playwright Server
4 of the 58 tools in MCP Playwright Server are classified as critical 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 critical risk
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cookies_clearDestructiveClear all cookies from the browser context, or clear specific cookies by name, domain, or path.
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element_clearDestructiveClear the contents of an input or textarea element
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session_reset_stateDestructiveClear cookies, localStorage, and sessionStorage for a browser session (useful for test isolation)
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test_artifact_deleteDestructiveDelete a test plan or test file
Attacks that target this class
Critical-risk tools in any server share these documented attack patterns. Each links to the full case and the defensive policy.