Check whether a DSM (operating system) update is available for the NAS.
AI agents call check_dsm_update to retrieve information from Synology MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only check against the NAS to determine if updates exist. It retrieves information about available updates but takes no action—it does not install, download, or modify the system. No side effects or destructive operations occur. This is a straightforward informational query, placing it firmly in the Read category with low severity risk.
From the tool's definition Tool name 'check_dsm_update' and description 'Check whether a DSM (operating system) update is available' indicate a query operation that retrieves update availability status without modifying, deleting, or executing any changes.
Attacks that exploit this kind of access
Check whether a DSM (operating system) update is available for the NAS. It is categorised as a Read tool in the Synology MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Synology MCP Server MCP server in PolicyLayer and add a rule for check_dsm_update: 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 Synology MCP Server. Nothing to install.
check_dsm_update 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 check_dsm_update 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 check_dsm_update. 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.
check_dsm_update is provided by the Synology MCP Server MCP server (rafalr100/synology-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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