Find all functions that call a specific function.
AI agents call find_callers to retrieve information from Ue Codegraph without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries information about code relationships (call graph analysis) without modifying, executing, or deleting any data. It performs static analysis on indexed code, similar to IDE features like 'Find References'. No side effects, no code execution, no data modification. The local SQLite database is read-only from the tool's perspective.
From the tool's definition Tool name is 'find_callers' and description states it will 'Find all functions that call a specific function' — a pure query operation against a local SQLite database of Unreal Engine code.
Attacks that exploit this kind of access
Find all functions that call a specific function. It is categorised as a Read tool in the Ue Codegraph MCP Server, which means it retrieves data without modifying state.
Register the Ue Codegraph MCP server in PolicyLayer and add a rule for find_callers: 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 Ue Codegraph. Nothing to install.
find_callers 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 find_callers 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 find_callers. 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.
find_callers is provided by the Ue Codegraph MCP server (yomenstyle/ue-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.
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