Retrieve media streams (mp4, hls, audio) for an item.
AI agents call get_stream to retrieve information from National Library of Israel Search MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves pre-existing media content from the National Library of Israel's digital archive. Retrieval of media streams is a read-only operation with no destructive, financial, or code-execution capability. The tool simply accesses and streams data that already exists. Low severity because misuse would only expose access to publicly-available archival media.
From the tool's definition Tool name 'get_stream' and description 'Retrieve media streams (mp4, hls, audio) for an item' indicate a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
Retrieve media streams (mp4, hls, audio) for an item. It is categorised as a Read tool in the National Library of Israel Search MCP MCP Server, which means it retrieves data without modifying state.
Register the National Library of Israel Search MCP server in PolicyLayer and add a rule for get_stream: 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 National Library of Israel Search MCP. Nothing to install.
get_stream 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_stream 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_stream. 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_stream is provided by the National Library of Israel Search MCP server (mula2812/nli_ai_search). 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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