alert_categories
List all available alert categories. Useful for understanding the types of alerts the system can generate.
This record as markdown: /tools/nasbridge/alert-categories.md
What alert_categories does on Nasbridge
AI agents call alert_categories to retrieve information from Nasbridge without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why alert_categories is rated Low
This tool retrieves and queries system metadata (available alert categories) without creating, modifying, executing, or deleting any data. It is purely informational and safe for AI agents to use.
From the tool's definition Tool name is 'alert_categories' and description states 'List all available alert categories' - a retrieval operation with no side effects.
Attacks that exploit this kind of access
The rule that runs alert_categories safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Nasbridge, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For alert_categories, this is the rule to start with:
alert_categories is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Nasbridge, apply this rule, and every alert_categories call is checked against it from then on.
Questions about alert_categories
List all available alert categories. Useful for understanding the types of alerts the system can generate. It is categorised as a Read tool in the Nasbridge MCP Server, which means it retrieves data without modifying state.
Register the Nasbridge MCP server in PolicyLayer and add a rule for alert_categories: 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 Nasbridge. Nothing to install.
alert_categories 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 alert_categories 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 alert_categories. 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.
alert_categories is provided by the Nasbridge MCP server (maverick0628/nasbridge). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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