snow_property_manage
Unified tool for system property management (get, set, delete, validate)
This record as markdown: /tools/serac/snow-property-manage.md
What snow_property_manage does on Serac
AI agents use snow_property_manage to create or update resources in Serac, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Serac environment.
Why snow_property_manage is rated Medium
While the tool includes a 'delete' operation (which could warrant Destructive classification), system properties in ServiceNow are typically configuration settings rather than primary data records. The 'set' operation is reversible—properties can be reconfigured. However, deleting critical system properties could have significant cascading effects on ServiceNow instance behavior.
From the tool's definition Tool description explicitly states 'get, set, delete, validate' for system property management. The 'set' and 'delete' operations constitute data modification and deletion of configuration properties.
Attacks that exploit this kind of access
The rule that runs snow_property_manage safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Serac, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For snow_property_manage, this is the rule to start with:
snow_property_manage stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Serac, apply this rule, and every snow_property_manage call is checked against it from then on.
Questions about snow_property_manage
Unified tool for system property management (get, set, delete, validate). It is categorised as a Write tool in the Serac MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Serac MCP server in PolicyLayer and add a rule for snow_property_manage: 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 Serac. Nothing to install.
snow_property_manage is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the snow_property_manage 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 snow_property_manage. 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.
snow_property_manage is provided by the Serac MCP server (serac-labs/serac). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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