AI agents invoke player_set_paused to trigger actions in MultiViewer. 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.
Based on the name, this tool likely pauses or unpauses a media player, which is an external operation/action. Empty description lowers confidence. Sibling tools like player_seek_to and player_create suggest this is a media control server where 'set_paused' triggers a state change in the player.
From the tool's definition Tool name 'player_set_paused' on a media control server; description is empty and uninformative.
Documented attack patterns abuse exactly the kind of access player_set_paused gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MultiViewer, and nothing reaches the server without passing your rules. This is the rule we recommend for player_set_paused:
{
"version": "1",
"default": "deny",
"tools": {
"player_set_paused": {
"limits": [
{
"counter": "player_set_paused_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}player_set_paused 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.
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player_set_paused. It is categorised as a Execute tool in the MultiViewer MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the MultiViewer MCP server in PolicyLayer and add a rule for player_set_paused: 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 MultiViewer. Nothing to install.
player_set_paused 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 player_set_paused 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 player_set_paused. 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.
player_set_paused is provided by the MultiViewer MCP server (robspectre/mvf1). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MultiViewer, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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21 MultiViewer tools catalogued and risk-classified — across an index of 43,000+ MCP servers.