Search for documents in the Gallica digital library by document type (e.g., monographie, periodique, image, manuscrit, carte, musique, etc.).
AI agents call search_by_document_type 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 data from a digital library database without side effects. It follows the 'search' pattern which is fundamentally a Read operation. The severity is low because even if misused by an AI agent, it can only retrieve publicly available library metadata and documents—no data can be modified, deleted, or financial harm caused.
From the tool's definition Tool performs search across the Gallica digital library filtered by document type. The description indicates query/retrieval operations only: 'Search for documents' with no mention of modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
Search for documents in the Gallica digital library by document type (e.g., monographie, periodique, image, manuscrit, carte, musique, etc.). 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 search_by_document_type: 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.
search_by_document_type 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 search_by_document_type 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 search_by_document_type. 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.
search_by_document_type 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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