List all shares using HSTK
AI agents call list_shares to retrieve information from Hammerspace Storage Management 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 information about shares in the Hammerspace storage system. The verb 'list' and the lack of any mention of modification, deletion, or execution confirms this is a read operation. The severity is low because listing shares has no side effects and typically returns metadata only. Confidence is high due to the explicit read semantics of the 'list' operation.
From the tool's definition Tool name 'list_shares' and description 'List all shares using HSTK' indicate a read-only query operation that retrieves and enumerates existing shares without modification or deletion.
Attacks that exploit this kind of access
List all shares using HSTK. It is categorised as a Read tool in the Hammerspace Storage Management MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Hammerspace Storage Management MCP Server MCP server in PolicyLayer and add a rule for list_shares: 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 Hammerspace Storage Management MCP Server. Nothing to install.
list_shares 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 list_shares 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 list_shares. 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.
list_shares is provided by the Hammerspace Storage Management MCP Server MCP server (mbloomhammerspace/mcp-1.5-main). 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.
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