AI agents call get_computer_summary to retrieve information from LegacyMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'get_' prefix and sibling tools consistently named with 'get_' establish a pattern of read-only queries against Active Directory. Despite the empty description, the naming convention and server purpose (assessment and exposure of AD data) strongly suggest this retrieves computer summary information without side effects. Classified as Read rather than higher severity.
From the tool's definition Tool name 'get_computer_summary' and server context ('queryable tools', 'get_' prefix used consistently across sibling tools like get_blocked_inheritance_ous, get_computers, get_dc_features) indicate data retrieval with no modification.
Attacks that exploit this kind of access
get_computer_summary. It is categorised as a Read tool in the LegacyMCP MCP Server, which means it retrieves data without modifying state.
Register the Legacy MCP server in PolicyLayer and add a rule for get_computer_summary: 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 LegacyMCP. Nothing to install.
get_computer_summary 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_computer_summary 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_computer_summary. 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_computer_summary is provided by the Legacy MCP server (marco-lelli/legacy-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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