This record as markdown: /tools/7gugu-whistle-mcp/createvaluesgroup.md
What createValuesGroup does on Whistle
AI agents use createValuesGroup to create or update resources in Whistle, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Whistle environment.
Why createValuesGroup is rated Medium
This tool creates a new values group in the Whistle proxy management system. Creation of configuration groups is a Write operation—it modifies system state but is reversible (can be deleted via deleteGroup). It does not delete data (Destructive), execute arbitrary code (Execute), or move money (Financial).
From the tool's definition Tool name 'createValuesGroup' and description '创建新的值分组' (create new values group) indicate creation of new data structure. Sibling tools include deleteGroup, deleteRule, deleteValue, suggesting this server manages proxy configurations that can be modified.
Attacks that exploit this kind of access
The rule that runs createValuesGroup safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Whistle, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For createValuesGroup, this is the rule to start with:
createValuesGroup 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 Whistle, apply this rule, and every createValuesGroup call is checked against it from then on.
Questions about createValuesGroup
创建新的值分组. It is categorised as a Write tool in the Whistle MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Whistle MCP server in PolicyLayer and add a rule for createValuesGroup: 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 Whistle. Nothing to install.
createValuesGroup 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 createValuesGroup 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 createValuesGroup. 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.
createValuesGroup is provided by the Whistle MCP server (7gugu/whistle-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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