Get the alt text and title for an image by 0-based index.
AI agents call get_alt_text to retrieve information from Docx 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 existing document metadata (alt text and title attributes for images). It performs no side effects, does not modify document state, and has no destructive or financial impact. It is a straightforward read operation with minimal security risk, hence low severity.
From the tool's definition Tool name is 'get_alt_text' and description states it 'Get[s] the alt text and title for an image' — purely retrieves metadata about an image with no modification, creation, or deletion of data.
Documented attack patterns abuse exactly the kind of access get_alt_text gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Docx, and nothing reaches the server without passing your rules. This is the rule we recommend for get_alt_text:
{
"version": "1",
"default": "deny",
"tools": {
"get_alt_text": {}
}
}get_alt_text is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the alt text and title for an image by 0-based index. It is categorised as a Read tool in the Docx MCP Server, which means it retrieves data without modifying state.
Register the Docx MCP server in PolicyLayer and add a rule for get_alt_text: 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 Docx. Nothing to install.
get_alt_text 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_alt_text 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_alt_text. 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_alt_text is provided by the Docx MCP server (securityronin/docx-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Docx, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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219 Docx tools catalogued and risk-classified — across an index of 43,000+ MCP servers.