web_search
AI agents call web_search to retrieve information from You Com MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Web search retrieves data from the internet without modifying, deleting, or executing code. It is a read-only operation with no side effects. The empty description prevents certainty that it performs only safe queries, but the context and naming strongly indicate a standard search functionality typical of search APIs.
From the tool's definition Tool name 'web_search' combined with server description stating it 'provides Claude AI assistants with the ability to search the web' and context of sibling tools (news_search, research, smart_search) all focused on querying/searching.
Attacks that exploit this kind of access
web_search. It is categorised as a Read tool in the You Com MCP Server MCP Server, which means it retrieves data without modifying state.
Register the You Com MCP Server MCP server in PolicyLayer and add a rule for web_search: 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 You Com MCP Server. Nothing to install.
web_search 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 web_search 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 web_search. 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.
web_search is provided by the You Com MCP Server MCP server (jimbul/youdotcom_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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