Get unified ownership breakdown for a company combining Form 4 insider holdings,
AI agents call get_ownership to retrieve information from Signal8 MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and aggregates publicly available SEC filing data (Form 4 insider holdings) without creating, modifying, deleting, or executing any operations. The severity is low because misuse would only expose publicly available information already disclosed to the market. The confidence is high given the clear read-only semantics and public data source.
From the tool's definition Tool name 'get_ownership' and description 'Get unified ownership breakdown for a company combining Form 4 insider holdings' indicate data retrieval with no modification or execution.
Attacks that exploit this kind of access
Get unified ownership breakdown for a company combining Form 4 insider holdings,. It is categorised as a Read tool in the Signal8 MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Signal8 MCP Server MCP server in PolicyLayer and add a rule for get_ownership: 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 Signal8 MCP Server. Nothing to install.
get_ownership 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_ownership 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_ownership. 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_ownership is provided by the Signal8 MCP Server MCP server (signal8ai/signal8-mcp). 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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