AI agents call get_function_signature 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 function signature metadata from a binary analysis context—a read-only operation with no side effects. Even in the context of reverse engineering, obtaining signature information does not modify state, execute code, or cause destructive changes. The minimal severity reflects the benign nature of data retrieval in a sandboxed analysis environment.
From the tool's definition Tool name 'get_function_signature' indicates retrieval of function signature information. No description provided, but context shows it's part of a binary analysis toolkit alongside other read-only tools like 'get_basic_blocks' and 'get_binary_info'.
Documented attack patterns abuse exactly the kind of access get_function_signature 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_function_signature:
{
"version": "1",
"default": "deny",
"tools": {
"get_function_signature": {}
}
}get_function_signature is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_function_signature. 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_function_signature: 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_function_signature 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_function_signature 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_function_signature. 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_function_signature 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.