correct_grammar_pro
AI agents call correct_grammar_pro to retrieve information from MCP English Tutor without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Grammar correction in an educational context retrieves analysis and recommendations without modifying user data, executing code, or causing side effects. The tool name and server purpose (1-on-1 English tutoring) strongly indicate a read-only analysis function. Confidence is moderate rather than high due to the empty description, which prevents direct confirmation of behavior.
From the tool's definition Tool name 'correct_grammar_pro' suggests grammar correction functionality. Description is empty, but sibling tools on this tutoring server (evaluate_response, get_topic_vocabulary, pronunciation_tips) are all read-only instructional tools.
Attacks that exploit this kind of access
correct_grammar_pro. It is categorised as a Read tool in the MCP English Tutor MCP Server, which means it retrieves data without modifying state.
Register the MCP English Tutor MCP server in PolicyLayer and add a rule for correct_grammar_pro: 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 English Tutor. Nothing to install.
correct_grammar_pro 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 correct_grammar_pro 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 correct_grammar_pro. 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.
correct_grammar_pro is provided by the MCP English Tutor MCP server (thanhlong27042003/mcp-server). 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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