list_states
List every US state that has treatment facility data in this directory, with per-state facility counts. Returns an array of {state, stateAbbr, count}. Use as a first step when the user's location is unclear, or to discover where coverage exists before calling search_facilities.
This record as markdown: /tools/com-gettreatmenthelp-gettreatmenthelp/list-states.md
What list_states does on GTH Intelligence — Substance Abuse Treatment Finder
AI agents call list_states to retrieve information from GTH Intelligence — Substance Abuse Treatment Finder without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why list_states is rated Low
This tool retrieves and queries directory metadata (state names, abbreviations, facility counts) without any side effects. It is a simple data lookup operation that supports navigation of the treatment facility database. No data is created, modified, deleted, or executed—only retrieved for informational purposes.
From the tool's definition Tool 'list_states' returns an array of state data with facility counts. Description explicitly states it 'Lists' and 'Returns' data with no modification, deletion, or execution. Verb 'discover' indicates information retrieval only.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs list_states safely
PolicyLayer is an MCP gateway: it sits between your AI agents and GTH Intelligence — Substance Abuse Treatment Finder, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_states, this is the rule to start with:
list_states 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 GTH Intelligence — Substance Abuse Treatment Finder, apply this rule, and every list_states call is checked against it from then on.
Questions about list_states
List every US state that has treatment facility data in this directory, with per-state facility counts. Returns an array of {state, stateAbbr, count}. Use as a first step when the user's location is unclear, or to discover where coverage exists before calling search_facilities. It is categorised as a Read tool in the GTH Intelligence — Substance Abuse Treatment Finder MCP Server, which means it retrieves data without modifying state.
Register the GTH Intelligence — Substance Abuse Treatment Finder MCP server in PolicyLayer and add a rule for list_states: 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 GTH Intelligence — Substance Abuse Treatment Finder. Nothing to install.
list_states 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 list_states 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 list_states. 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.
list_states is provided by the GTH Intelligence — Substance Abuse Treatment Finder MCP server (https://gth-mcp-server.pages.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on GTH Intelligence — Substance Abuse Treatment Finder, and thousands of servers like it.
Across the catalogue