regions
List the regions 19hz covers (slug + label). Pass a slug to the events tool. Note: electronic/dance music focus (house, techno, bass, etc.).
This record as markdown: /tools/io-github-pipeworx-io-19hz/regions.md
What regions does on 19hz
AI agents call regions to retrieve information from 19hz without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why regions is rated Low
This tool performs a simple data lookup returning a list of regions. There are no write, execute, destructive, or financial operations involved. The blast radius of misuse is minimal—an AI could at worst request the list repeatedly, but cannot modify, delete, or trigger external actions. This is a straightforward Read operation.
From the tool's definition Tool name 'regions' and description 'List the regions 19hz covers' clearly indicates a retrieval operation with no side effects. The description explicitly states it returns data (slug + label) for use by other tools.
Attacks that exploit this kind of access
The rule that runs regions safely
PolicyLayer is an MCP gateway: it sits between your AI agents and 19hz, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For regions, this is the rule to start with:
regions 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 19hz, apply this rule, and every regions call is checked against it from then on.
Questions about regions
List the regions 19hz covers (slug + label). Pass a slug to the events tool. Note: electronic/dance music focus (house, techno, bass, etc.). It is categorised as a Read tool in the 19hz MCP Server, which means it retrieves data without modifying state.
Register the 19hz MCP server in PolicyLayer and add a rule for regions: 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 19hz. Nothing to install.
regions 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 regions 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 regions. 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.
regions is provided by the 19hz MCP server (https://gateway.pipeworx.io/19hz/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on 19hz, and thousands of servers like it.
This server
Across the catalogue