playlists_trigger_active_announcement
Trigger the active announcement in the playlist
This record as markdown: /tools/io-github-alxpark-propresenter-mcp/playlists-trigger-active-announcement.md
What playlists_trigger_active_announcement does on Propresenter
AI agents invoke playlists_trigger_active_announcement to trigger actions in Propresenter. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why playlists_trigger_active_announcement is rated High
This tool executes a command to trigger an announcement in ProPresenter 7, which causes an external operation (displaying/playing an announcement) whose effects depend on the current state of the playlist. While the action is reversible (not destructive), it is clearly an Execute-category tool because it performs an operation rather than reading data or making reversible modifications.
From the tool's definition Tool name includes 'trigger' and description states 'Trigger the active announcement in the playlist' — triggering an announcement is an executable action that affects external state (the presentation system).
Attacks that exploit this kind of access
The rule that runs playlists_trigger_active_announcement safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Propresenter, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For playlists_trigger_active_announcement, this is the rule to start with:
playlists_trigger_active_announcement stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Propresenter, apply this rule, and every playlists_trigger_active_announcement call is checked against it from then on.
Questions about playlists_trigger_active_announcement
Trigger the active announcement in the playlist. It is categorised as a Execute tool in the Propresenter MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Propresenter MCP server in PolicyLayer and add a rule for playlists_trigger_active_announcement: 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_trigger_active_announcement is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the playlists_trigger_active_announcement 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_trigger_active_announcement. 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_trigger_active_announcement 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.
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