Nearest neighbors by call/import edges
AI agents call graph.related to retrieve information from CodeGraph MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries the code graph to find related symbols through call/import relationships. It only reads and returns data from the graph without modifying, executing, or deleting anything. Severity is low as the blast radius of misuse is minimal — it can only expose code structure information.
From the tool's definition Nearest neighbors by call/import edges — retrieves related symbols via graph traversal
Attacks that exploit this kind of access
Nearest neighbors by call/import edges. It is categorised as a Read tool in the CodeGraph MCP Server MCP Server, which means it retrieves data without modifying state.
Register the CodeGraph MCP Server MCP server in PolicyLayer and add a rule for graph.related: 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 CodeGraph MCP Server. Nothing to install.
graph.related 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 graph.related 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 graph.related. 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.
graph.related is provided by the CodeGraph MCP Server MCP server (nabiatech/codegraph-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 →