Get a hint for the current GeoGuessr location. Call this when: - User asks for a hint - User says "help me" or "I need a clue" - User is stuck and needs guidance Hint levels (use progressively, don't skip ahead): - Level 1: Continent (e.g., "Europe") - Level 2: Region (e.g., "Western Europe") - L...
Part of the My MCP Server server.
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AI agents call get_hint to retrieve information from My MCP Server without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though get_hint only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"get_hint": {}
}
}See the full My MCP Server policy for all 4 tools.
These attack patterns abuse exactly the kind of access get_hint gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Get a hint for the current GeoGuessr location. Call this when: - User asks for a hint - User says "help me" or "I need a clue" - User is stuck and needs guidance Hint levels (use progressively, don't skip ahead): - Level 1: Continent (e.g., "Europe") - Level 2: Region (e.g., "Western Europe") - Level 3: Language on signs (e.g., "French") - Level 4: Neighboring countries Start with level 1, then give level 2 if they need more help, etc.. It is categorised as a Read tool in the My MCP Server MCP Server, which means it retrieves data without modifying state.
Register the My MCP Server MCP server in PolicyLayer and add a rule for get_hint: 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 My MCP Server. Nothing to install.
get_hint 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 get_hint 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 get_hint. 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.
get_hint is provided by the My MCP Server MCP server (https://gueguesser-chatgptap-68537aa2.alpic.live). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 4 My MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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