Get the previous item in the focused playlist
AI agents call playlists_get_focused_previous to retrieve information from Propresenter without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about the previous item in a currently focused playlist. It performs no state changes, no code execution, no data modification, and no destructive operations. The operation is purely informational and carries minimal risk if invoked by an AI agent, as it only reads presentation state without side effects.
From the tool's definition Tool name 'playlists_get_focused_previous' and description 'Get the previous item in the focused playlist' indicate retrieval of data with no modification. The 'get' verb and read-only semantics confirm this is a query operation.
Documented attack patterns abuse exactly the kind of access playlists_get_focused_previous gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Propresenter, and nothing reaches the server without passing your rules. This is the rule we recommend for playlists_get_focused_previous:
{
"version": "1",
"default": "deny",
"tools": {
"playlists_get_focused_previous": {}
}
}playlists_get_focused_previous is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the previous item in the focused playlist. It is categorised as a Read tool in the Propresenter MCP Server, which means it retrieves data without modifying state.
Register the Propresenter MCP server in PolicyLayer and add a rule for playlists_get_focused_previous: 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 Propresenter. Nothing to install.
playlists_get_focused_previous 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 playlists_get_focused_previous 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 playlists_get_focused_previous. 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.
playlists_get_focused_previous is provided by the Propresenter MCP server (@alxpark/propresenter-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Propresenter, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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177 Propresenter tools catalogued and risk-classified — across an index of 43,000+ MCP servers.