AI agents call gnfd_list_buckets to retrieve information from BNB Chain MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only queries and returns information about storage buckets; it has no side effects. The word 'list' and the passive retrieval operation confirm this is a Read category tool. Severity is low as bucket enumeration on a decentralized storage system poses minimal risk to the user's assets or system integrity when misused.
From the tool's definition Tool name contains 'list' and description states 'List all buckets owned by the account' - a pure data retrieval operation with no modification or execution.
Documented attack patterns abuse exactly the kind of access gnfd_list_buckets gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and BNB Chain MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for gnfd_list_buckets:
{
"version": "1",
"default": "deny",
"tools": {
"gnfd_list_buckets": {}
}
}gnfd_list_buckets is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all buckets owned by the account. It is categorised as a Read tool in the BNB Chain MCP MCP Server, which means it retrieves data without modifying state.
Register the BNB Chain MCP server in PolicyLayer and add a rule for gnfd_list_buckets: 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 BNB Chain MCP. Nothing to install.
gnfd_list_buckets 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 gnfd_list_buckets 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 gnfd_list_buckets. 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.
gnfd_list_buckets is provided by the BNB Chain MCP server (nirholas/bnbchain-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 1240 BNB Chain MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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1240 BNB Chain MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.