Get IIIF image URL for a specific page. Returns URL and metadata, not binary data.
AI agents call get_page_image to retrieve information from Gallica/BnF MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries image metadata and URLs from the Gallica digital library without modifying, deleting, or executing anything. The emphasis that it returns URLs rather than binary data reinforces that it is a simple read operation with no side effects. Access to a public digital library's metadata and image references poses minimal risk even if misused by an AI agent.
From the tool's definition Tool 'get_page_image' returns 'URL and metadata, not binary data' for document pages in a read-only digital library context.
Attacks that exploit this kind of access
Get IIIF image URL for a specific page. Returns URL and metadata, not binary data. It is categorised as a Read tool in the Gallica/BnF MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Gallica/BnF MCP Server MCP server in PolicyLayer and add a rule for get_page_image: 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 Gallica/BnF MCP Server. Nothing to install.
get_page_image 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_page_image 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_page_image. 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_page_image is provided by the Gallica/BnF MCP Server MCP server (ukicar/sweet-bnf). 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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