Unified tool for ServiceNow approval chains across the sysapproval_approver, sysapproval_group, and sysapproval_action tables. Use this when a record needs an ordered, multi-step approval flow rather than a single ad-hoc approver. Actions: - define_chain — write an ordered chain of approval steps...
AI agents use snow_approval_chain_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.
This tool creates or modifies approval chain workflows that gate access to sensitive business processes. While reversible (not Destructive), it Write-classifies because it configures multi-step approval sequences.
From the tool's definition Tool description states 'write an ordered chain of approval steps' and 'define_chain' action explicitly modifies approval workflow configuration across sysapproval_approver, sysapproval_group, and sysapproval_action tables.
Attacks that exploit this kind of access
Unified tool for ServiceNow approval chains across the sysapproval_approver, sysapproval_group, and sysapproval_action tables. Use this when a record needs an ordered, multi-step approval flow rather than a single ad-hoc approver. Actions: - define_chain — write an ordered chain of approval steps for a source record. Each step may target a user (sysapproval_approver) or a group (sysapproval_group). Steps after the first start in. 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_approval_chain_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_approval_chain_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_approval_chain_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_approval_chain_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_approval_chain_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.
snow_approval_chain_manage is one line of Serac's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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