Adds a document to the index
AI agents use add_document to create or update resources in Azure AI Foundry MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Azure AI Foundry MCP Server environment.
An AI agent can call add_document faster than any human can review — one bad instruction and it creates or modifies resources in Azure AI Foundry MCP Server by the hundred, each call as confident as the last.
Attacks that exploit this kind of access
Adds a document to the index. It is categorised as a Write tool in the Azure AI Foundry MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Azure AI Foundry MCP Server MCP server in PolicyLayer and add a rule for add_document: 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 Azure AI Foundry MCP Server. Nothing to install.
add_document is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the add_document 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 add_document. 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.
add_document is provided by the Azure AI Foundry MCP Server MCP server (youssef7788/mcp-foundry). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.