AI agents call wiki_search to retrieve information from Basic MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or searches for information from Wikipedia, a read-only public data source. There is no capability to modify, delete, or create data, nor does it execute code or trigger financial transactions. The worst-case misuse scenario is wasting API quota or returning irrelevant search results, both low-blast-radius outcomes.
From the tool's definition Tool name 'wiki_search' and description 'Search Wikipedia for articles matching the query' indicate a retrieval operation with no side effects. It queries existing data without modification, deletion, or execution of external operations.
Attacks that exploit this kind of access
Search Wikipedia for articles matching the query. It is categorised as a Read tool in the Basic MCP MCP Server, which means it retrieves data without modifying state.
Register the Basic MCP server in PolicyLayer and add a rule for wiki_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 Basic MCP. Nothing to install.
wiki_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 wiki_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 wiki_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.
wiki_search is provided by the Basic MCP server (nimishgautam/basic-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
wiki_search is one line of Basic's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →