Live web search: ranked results with title, URL, snippet, site name, and page age — fresh information past any training cutoff. Supports paging (count/offset), country, freshness (pd/pw/pm/py or date range), safesearch. Use for current events, fact verification, documentation, research.
AI agents call search.web to retrieve information from Mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries publicly available web information without creating, modifying, deleting, executing code, or moving funds. The description explicitly frames it as a search/research tool for 'current events, fact verification, documentation, research' — classic Read operations. No data is written, no external commands are executed, and no resources are modified on the caller's behalf.
From the tool's definition Tool performs 'Live web search' returning 'ranked results with title, URL, snippet, site name, and page age' — retrieval and querying only. Parameters like paging, country, freshness filtering, and safesearch are all query modifiers with no side effects.
Attacks that exploit this kind of access
Live web search: ranked results with title, URL, snippet, site name, and page age — fresh information past any training cutoff. Supports paging (count/offset), country, freshness (pd/pw/pm/py or date range), safesearch. Use for current events, fact verification, documentation, research. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.
Register the MCP server in PolicyLayer and add a rule for search.web: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp. Nothing to install.
search.web is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the search.web rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for search.web. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
search.web is provided by the MCP server (@2sio/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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