Set leverage multiplier for a market on Hyperliquid
AI agents invoke hl_set_leverage to trigger actions in Waiaas. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
Setting leverage on a perpetuals exchange (Hyperliquid) is an Execute-level action that configures trading parameters affecting financial risk exposure. While it doesn't directly move funds, changing leverage directly controls the risk profile of existing or future positions—a misconfigured leverage multiplier could lead to liquidation of positions and significant financial loss.
From the tool's definition Set leverage multiplier for a market on Hyperliquid
Documented attack patterns abuse exactly the kind of access hl_set_leverage gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Waiaas, and nothing reaches the server without passing your rules. This is the rule we recommend for hl_set_leverage:
{
"version": "1",
"default": "deny",
"tools": {
"hl_set_leverage": {
"limits": [
{
"counter": "hl_set_leverage_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}hl_set_leverage stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
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Set leverage multiplier for a market on Hyperliquid. It is categorised as a Execute tool in the Waiaas MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Waiaas MCP server in PolicyLayer and add a rule for hl_set_leverage: 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 Waiaas. Nothing to install.
hl_set_leverage is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the hl_set_leverage 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 hl_set_leverage. 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.
hl_set_leverage is provided by the Waiaas MCP server (minhoyoo-iotrust/waiaas). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Waiaas, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
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