Look up a filing or exhibit by its SEC accession number. Supports both dashed format
AI agents call lookup_accession_number 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 publicly available SEC filing data by accession number. It is a read-only query operation that returns information without side effects, making it a Read category tool. The severity is low because SEC filings are public documents and retrieval poses minimal risk.
From the tool's definition Tool description states 'Look up a filing or exhibit by its SEC accession number' — a lookup/retrieval operation with no modification, deletion, or execution capability. SEC filings are public documents.
Attacks that exploit this kind of access
Look up a filing or exhibit by its SEC accession number. Supports both dashed format. 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 lookup_accession_number: 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.
lookup_accession_number 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 lookup_accession_number 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 lookup_accession_number. 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.
lookup_accession_number 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.
Teams ship this data inside their own products. See what a licence covers →