Get metadata for a specific attachment by its sys_id. Returns file name,
AI agents call get_attachment_info to retrieve information from Now Sdk Ext 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 metadata about an attachment—specifically file name and other metadata properties—without creating, modifying, deleting, or executing any operations. It is a read-only retrieval operation with minimal blast radius if misused by an AI agent, as it only exposes existing metadata that is typically not sensitive in nature.
From the tool's definition Tool name 'get_attachment_info' and description 'Get metadata for a specific attachment by its sys_id. Returns file name' indicate retrieval of attachment metadata without modification or deletion.
Documented attack patterns abuse exactly the kind of access get_attachment_info gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Now Sdk Ext, and nothing reaches the server without passing your rules. This is the rule we recommend for get_attachment_info:
{
"version": "1",
"default": "deny",
"tools": {
"get_attachment_info": {}
}
}get_attachment_info is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get metadata for a specific attachment by its sys_id. Returns file name,. It is categorised as a Read tool in the Now Sdk Ext MCP Server, which means it retrieves data without modifying state.
Register the Now Sdk Ext MCP server in PolicyLayer and add a rule for get_attachment_info: 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 Now Sdk Ext. Nothing to install.
get_attachment_info 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 get_attachment_info 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 get_attachment_info. 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.
get_attachment_info is provided by the Now Sdk Ext MCP server (sonisoft-cnanda/now-sdk-ext-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Now Sdk Ext, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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86 Now Sdk Ext tools catalogued and risk-classified — across an index of 43,000+ MCP servers.