Get word sketch (grammatical relations) for a lemma
AI agents call get_word_sketch to retrieve information from Sketch Engine MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves grammatical relations and linguistic metadata for a given lemma from the Sketch Engine corpus. It performs a query operation with no side effects—no data is created, modified, deleted, or executed. It is a straightforward read operation on a text analysis corpus.
From the tool's definition Tool name 'get_word_sketch' and description 'Get word sketch (grammatical relations) for a lemma' indicate a retrieval operation that queries linguistic data without modification.
Attacks that exploit this kind of access
Get word sketch (grammatical relations) for a lemma. It is categorised as a Read tool in the Sketch Engine MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Sketch Engine MCP Server MCP server in PolicyLayer and add a rule for get_word_sketch: 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 Sketch Engine MCP Server. Nothing to install.
get_word_sketch 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 get_word_sketch 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 get_word_sketch. 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.
get_word_sketch is provided by the Sketch Engine MCP Server MCP server (riccap/sketch-engine-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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