List custom items (charts, custom fields etc.)
AI agents call listCustomItems to retrieve information from Intervals Icu Api without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
id | string | Yes |
Parameters from the server's own tool schema.
This tool retrieves or queries a collection of custom items (charts, custom fields, etc.) from the Intervals.icu API. The action is purely observational with no data mutation, external execution, deletion, or financial impact. It falls clearly into the Read category with low severity since listing data poses minimal risk even if misused by an AI agent.
From the tool's definition listCustomItems - the verb 'list' combined with the description 'List custom items' indicates retrieval of data without modification or side effects.
Attacks that exploit this kind of access
List custom items (charts, custom fields etc.). It is categorised as a Read tool in the Intervals Icu Api MCP Server, which means it retrieves data without modifying state.
listCustomItems accepts 1 parameter: id. Required: id. The full parameter table on this page comes from the server's own tool schema.
Register the Intervals Icu Api MCP server in PolicyLayer and add a rule for listCustomItems: 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 Intervals Icu Api. Nothing to install.
listCustomItems 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 listCustomItems 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 listCustomItems. 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.
listCustomItems is provided by the Intervals Icu Api MCP server (intervals-icu-api-mcp-server). 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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