AI agents call obs-get-source-active to retrieve information from OBS MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only retrieval of source state (active/show status) from OBS Studio. It has no side effects, does not trigger actions, and does not modify any data. It falls squarely into the Read category. Severity is low because querying source state poses minimal risk; an agent cannot cause harm by checking whether a source is active or visible.
From the tool's definition Tool name and description indicate it 'Gets the active and show state of a source' — a query operation that retrieves state information without modifying, executing, or deleting anything.
Documented attack patterns abuse exactly the kind of access obs-get-source-active gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OBS MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for obs-get-source-active:
{
"version": "1",
"default": "deny",
"tools": {
"obs-get-source-active": {}
}
}obs-get-source-active is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Gets the active and show state of a source. It is categorised as a Read tool in the OBS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OBS MCP Server MCP server in PolicyLayer and add a rule for obs-get-source-active: 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 OBS MCP Server. Nothing to install.
obs-get-source-active 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 obs-get-source-active 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 obs-get-source-active. 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.
obs-get-source-active is provided by the OBS MCP Server MCP server (royshil/obs-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 200 OBS MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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200 OBS MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.