AI agents call get_method_fields to retrieve information from Tron without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns structural information (field definitions, schemas) about blockchain API methods. It has no side effects, does not execute code or transactions, does not modify state, and does not move funds. It is a pure information-retrieval utility, making it a Read category risk with low severity.
From the tool's definition Tool description states 'Get exact field structure for API method parameters and response' — this retrieves metadata/schema information about API methods without modifying data or executing transactions.
Attacks that exploit this kind of access
Get exact field structure for API method parameters and response. It is categorised as a Read tool in the Tron MCP Server, which means it retrieves data without modifying state.
Register the Tron MCP server in PolicyLayer and add a rule for get_method_fields: 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 Tron. Nothing to install.
get_method_fields 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_method_fields 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_method_fields. 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_method_fields is provided by the Tron MCP server (netts-official/tron_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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