get_attachment_metadata
Get metadata (name, type, size) of a specific attachment by its sys_id
This record as markdown: /tools/nowaikit-servicenow-ai-toolkit/get-attachment-metadata.md
What get_attachment_metadata does on NowAIKit — ServiceNow AI Toolkit
AI agents call get_attachment_metadata to retrieve information from NowAIKit — ServiceNow AI Toolkit without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_attachment_metadata is rated Low
This tool retrieves metadata about an attachment in ServiceNow. It queries information (name, type, size) without creating, modifying, deleting, or executing any operations. The operation is read-only with minimal blast radius—at worst, an agent could enumerate attachment metadata, which poses low security risk.
From the tool's definition Tool name 'get_attachment_metadata' and description 'Get metadata (name, type, size) of a specific attachment by its sys_id' indicate retrieval of attachment metadata without modification or deletion.
Attacks that exploit this kind of access
The rule that runs get_attachment_metadata safely
PolicyLayer is an MCP gateway: it sits between your AI agents and NowAIKit — ServiceNow AI Toolkit, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_attachment_metadata, this is the rule to start with:
get_attachment_metadata is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect NowAIKit — ServiceNow AI Toolkit, apply this rule, and every get_attachment_metadata call is checked against it from then on.
Questions about get_attachment_metadata
Get metadata (name, type, size) of a specific attachment by its sys_id. It is categorised as a Read tool in the NowAIKit — ServiceNow AI Toolkit MCP Server, which means it retrieves data without modifying state.
Register the NowAIKit — ServiceNow AI Toolkit MCP server in PolicyLayer and add a rule for get_attachment_metadata: 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 NowAIKit — ServiceNow AI Toolkit. Nothing to install.
get_attachment_metadata 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_metadata 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_metadata. 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_metadata is provided by the NowAIKit — ServiceNow AI Toolkit MCP server (nowaikit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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