crow_jellyfin_play
Get a direct stream URL for a Jellyfin item. Use for playback or sharing.
This record as markdown: /tools/kh0pper-crow/crow-jellyfin-play.md
What crow_jellyfin_play does on Crow
AI agents call crow_jellyfin_play to retrieve information from Crow without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why crow_jellyfin_play is rated Low
This tool retrieves a stream URL for existing media content without modifying, deleting, or executing operations. It is purely informational/retrieval in nature. While the URL could theoretically be shared, the tool itself does not perform the sharing—it only provides the URL. There is no ability to delete content, execute arbitrary operations, or affect financial transactions.
From the tool's definition Tool description states 'Get a direct stream URL for a Jellyfin item. Use for playback or sharing.' The verb 'Get' and the stated purpose of retrieving a URL for consumption indicates data retrieval with no side effects on the media item itself.
Attacks that exploit this kind of access
The rule that runs crow_jellyfin_play safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Crow, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For crow_jellyfin_play, this is the rule to start with:
crow_jellyfin_play is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Crow, apply this rule, and every crow_jellyfin_play call is checked against it from then on.
Questions about crow_jellyfin_play
Get a direct stream URL for a Jellyfin item. Use for playback or sharing. It is categorised as a Read tool in the Crow MCP Server, which means it retrieves data without modifying state.
Register the Crow MCP server in PolicyLayer and add a rule for crow_jellyfin_play: 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 Crow. Nothing to install.
crow_jellyfin_play 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 crow_jellyfin_play 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 crow_jellyfin_play. 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.
crow_jellyfin_play is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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