AI agents call get_data_vars to retrieve information from BinAssistMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about data variables present in a binary being analyzed. It performs a query/list operation on existing binary data without creating, modifying, deleting, or executing any code. The 'get' prefix and passive verb 'Get' confirm it is a read-only operation.
From the tool's definition Tool name 'get_data_vars' and description 'Get all data variables in the binary' indicate a retrieval operation with no modification or side effects.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access get_data_vars gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and BinAssistMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_data_vars:
{
"version": "1",
"default": "deny",
"tools": {
"get_data_vars": {}
}
}get_data_vars is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get all data variables in the binary. It is categorised as a Read tool in the BinAssistMCP MCP Server, which means it retrieves data without modifying state.
Register the BinAssist MCP server in PolicyLayer and add a rule for get_data_vars: 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 BinAssistMCP. Nothing to install.
get_data_vars 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_data_vars 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_data_vars. 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_data_vars is provided by the BinAssist MCP server (symgraph/binassistmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 44 BinAssistMCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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44 BinAssistMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.