List all node types, their attributes and their relationships TO other node-types in the AGE
AI agents call get-age-schema to retrieve information from AGE-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 schema metadata (node types, attributes, relationships) from the graph database without querying data or modifying any state. It is a pure read operation with minimal blast radius if misused by an AI agent—at worst, it exposes schema structure but cannot alter or delete data, execute commands, or cause side effects.
From the tool's definition Tool name 'get-age-schema' and description 'List all node types, their attributes and their relationships' indicate a retrieval operation with no modification of data.
Attacks that exploit this kind of access
List all node types, their attributes and their relationships TO other node-types in the AGE. It is categorised as a Read tool in the AGE-MCP-Server MCP Server, which means it retrieves data without modifying state.
Register the AGE-MCP-Server MCP server in PolicyLayer and add a rule for get-age-schema: 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 AGE-MCP-Server. Nothing to install.
get-age-schema 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-age-schema 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-age-schema. 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-age-schema is provided by the AGE-MCP-Server MCP server (rioriost/age_mcp_server). 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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