Lista los recursos (archivos adjuntos) de un item del portal.
AI agents call item_resources to retrieve information from ArcGIS MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves information about resources attached to portal items. It performs a read-only operation with no side effects, data modification, code execution, or financial impact. The blast radius is minimal—unauthorized access could expose information about attachments but cannot modify or delete them.
From the tool's definition Tool name 'item_resources' and description 'Lista los recursos (archivos adjuntos) de un item del portal' (Lists the resources/attachments of a portal item) indicate retrieval of metadata about item attachments without modification.
Attacks that exploit this kind of access
Lista los recursos (archivos adjuntos) de un item del portal. It is categorised as a Read tool in the ArcGIS MCP MCP Server, which means it retrieves data without modifying state.
Register the ArcGIS MCP server in PolicyLayer and add a rule for item_resources: 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 ArcGIS MCP. Nothing to install.
item_resources 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 item_resources 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 item_resources. 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.
item_resources is provided by the ArcGIS MCP server (renemorenow/arcgis-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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