clear_alarm
AI agents call clear_alarm to permanently remove resources in Yamcs MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
In mission control systems, 'clear_alarm' typically means dismissing or clearing an active alarm, which is generally irreversible (the alarm state is reset and the original alert is lost). Sibling tools like 'acknowledge_alarm' and 'describe_alarm' confirm this is an alarm management server. Clearing alarms in safety-critical systems carries high risk as it could mask real issues.
From the tool's definition Tool name 'clear_alarm' in context of a mission control system; description is empty
Attacks that exploit this kind of access
clear_alarm. It is categorised as a Destructive tool in the Yamcs MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Yamcs MCP Server MCP server in PolicyLayer and add a rule for clear_alarm: 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 Yamcs MCP Server. Nothing to install.
clear_alarm is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the clear_alarm 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 clear_alarm. 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.
clear_alarm is provided by the Yamcs MCP Server MCP server (paulmramirez/yamcs-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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