AI agents invoke fusion_video to trigger actions in PixVerse MCP. 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.
The description is empty, so classification is based on the tool name and server context. Given sibling tools all trigger video generation or transformation operations (external compute/API calls), 'fusion_video' most likely executes a video fusion/combination operation — an external action with side effects. Confidence is lowered due to the empty description.
From the tool's definition Tool name 'fusion_video' on a server that enables video generation from text, images, and more; sibling tools include text_to_video, image_to_video, extend_video, transition_video, lip_sync_video, suggesting this tool likely combines/fuses video elements.
Documented attack patterns abuse exactly the kind of access fusion_video gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and PixVerse MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for fusion_video:
{
"version": "1",
"default": "deny",
"tools": {
"fusion_video": {
"limits": [
{
"counter": "fusion_video_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}fusion_video 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.
Free to start. No card required.
fusion_video. It is categorised as a Execute tool in the PixVerse MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the PixVerse MCP server in PolicyLayer and add a rule for fusion_video: 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 PixVerse MCP. Nothing to install.
fusion_video 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 fusion_video 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 fusion_video. 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.
fusion_video is provided by the PixVerse MCP server (pixverseai/pixverse-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 12 PixVerse MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
12 PixVerse MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.