Submit an offer (bid) on a registered ENS name. Validates the offer, provides market context (listing price, comparable sales, existing offers), and directs you to execute on the Vision marketplace. Requires wallet signature for on-chain execution via Seaport protocol. The name owner can accept, ...
Part of the Name Whisper server.
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AI agents invoke make_offer to trigger processes or run actions in Name Whisper. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.
make_offer can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. PolicyLayer enforces rate limits and validates arguments to keep execution within safe bounds.
Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.
{
"version": "1",
"default": "deny",
"tools": {
"make_offer": {
"limits": [
{
"counter": "make_offer_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}See the full Name Whisper policy for all 34 tools.
These attack patterns abuse exactly the kind of access make_offer gives an agent. Each links to the full case and the policy that stops it:
Other execute tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Submit an offer (bid) on a registered ENS name. Validates the offer, provides market context (listing price, comparable sales, existing offers), and directs you to execute on the Vision marketplace. Requires wallet signature for on-chain execution via Seaport protocol. The name owner can accept, counter, or decline on ensvision.com. Tip: Use get_valuation first to understand fair market value before making an offer.. It is categorised as a Execute tool in the Name Whisper MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Name Whisper MCP server in PolicyLayer and add a rule for make_offer: 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 Name Whisper. Nothing to install.
make_offer 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 make_offer 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 make_offer. 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.
make_offer is provided by the Name Whisper MCP server (namewhisper/ens-tools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 34 Name Whisper tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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