AI agents call hermes_ask as a supporting operation in Hermes workflows.
With no description available, classification is highly uncertain. The name 'hermes_ask' suggests querying or delegating a question to the Hermes agent, which could be a Read or Execute operation. Given the server context of automation and persistent operations, and sibling tools (cancel, check, reset) suggesting task lifecycle management, 'ask' likely submits a task or query to the agent — potentially Execute.
From the tool's definition Tool name is 'hermes_ask' but description is empty or uninformative; no description provided to determine what the tool does.
Documented attack patterns abuse exactly the kind of access hermes_ask gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Hermes, and nothing reaches the server without passing your rules. This is the rule we recommend for hermes_ask:
{
"version": "1",
"default": "deny",
"tools": {
"hermes_ask": {
"limits": [
{
"counter": "hermes_ask_rate",
"window": "minute",
"max": 60,
"scope": "grant"
}
]
}
}
}hermes_ask gets a rate cap, and everything else on the server is denied unless you say otherwise.
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hermes_ask. It is categorised as a Other tool in the Hermes MCP Server, which means it performs auxiliary operations.
Register the Hermes MCP server in PolicyLayer and add a rule for hermes_ask: 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 Hermes. Nothing to install.
hermes_ask is a Other tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the hermes_ask 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 hermes_ask. 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.
hermes_ask is provided by the Hermes MCP server (mlennie/hermes-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Hermes, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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4 Hermes tools catalogued and risk-classified — across an index of 43,000+ MCP servers.