get_class_hierarchy
AI agents call get_class_hierarchy to retrieve information from Codebase Contextifier 9000 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves class hierarchy information from the indexed codebase—a read-only analysis operation. It retrieves or queries data with no side effects. The sibling tools all perform analysis and graph queries (get_call_graph, get_graph_statistics, detect_dependencies, find_callees, find_callers, find_usages), establishing a pattern of non-destructive reads.
From the tool's definition Tool name 'get_class_hierarchy' combined with sibling tools like 'get_call_graph', 'get_graph_statistics', 'detect_dependencies', and 'find_usages' strongly indicate this is a query/retrieval operation.
Attacks that exploit this kind of access
get_class_hierarchy. It is categorised as a Read tool in the Codebase Contextifier 9000 MCP Server, which means it retrieves data without modifying state.
Register the Codebase Contextifier 9000 MCP server in PolicyLayer and add a rule for get_class_hierarchy: 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 Codebase Contextifier 9000. Nothing to install.
get_class_hierarchy 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_class_hierarchy 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_class_hierarchy. 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_class_hierarchy is provided by the Codebase Contextifier 9000 MCP server (jarmentor/codebase-contextifier-9000). 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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