34 tools. 15 can modify or destroy data without limits.
4 destructive tools with no built-in limits. Policy required.
Last updated:
Financial operations (bulk_transfer_ens_names, transfer_ens_name) can move real money. An agent caught in a loop could drain accounts before anyone notices.
Destructive tools (manage_fuses, wrap_name) permanently delete resources. There is no undo. An agent calling these in a retry loop causes irreversible damage.
Write operations (approve_operator, bulk_register, bulk_set_records) modify state. Without rate limits, an agent can make hundreds of changes in seconds — faster than any human can review or revert.
Execute tools (make_offer) trigger processes with side effects. Builds, notifications, workflows — all fired without throttling.
Intercept sits between your agent and Name Whisper. Every tool call checked against your policy before it executes — so your agent can do its job without breaking things.
npx -y @policylayer/intercept scan -- npx -y @namewhisper/ens-tools bulk_transfer_ens_names:
rules:
- action: deny Financial tools should be explicitly enabled per use case, not open by default.
manage_fuses:
rules:
- action: deny Destructive tools should never be available to autonomous agents without human approval.
approve_operator:
rules:
- rate_limit: 30/hour Prevents bulk unintended modifications from agents caught in loops.
check_availability:
rules:
- rate_limit: 60/minute Controls API costs and prevents retry loops from exhausting upstream rate limits.
Yes. The Name Whisper server exposes 2 financial tools including bulk_transfer_ens_names, transfer_ens_name. Without a policy, an autonomous agent can call these with no spend caps, no rate limits, and no approval flow. Intercept lets you block financial tools by default or set per-tool rate limits.
Yes. The Name Whisper server exposes 2 destructive tools including manage_fuses, wrap_name. These permanently remove resources with no undo. Intercept blocks destructive tools by default so they never reach the upstream server.
The Name Whisper server has 10 write tools including approve_operator, bulk_register, bulk_set_records. Set rate limits in your policy file -- for example, rate_limit: 10/hour prevents an agent from making more than 10 modifications per hour. Intercept enforces this at the transport layer.
34 tools across 5 categories: Destructive, Execute, Financial, Read, Write. 19 are read-only. 15 can modify, create, or delete data.
One line change. Instead of running the Name Whisper server directly, prefix it with Intercept: intercept -c namewhisper-ens-tools.yaml -- npx -y @namewhisper/ens-tools. Download a pre-built policy from policylayer.com/policies/namewhisper-ens-tools and adjust the limits to match your use case.
Starter policies available for each. Same risk classification, same one-command setup.
Set budgets, approvals, and hard limits across MCP servers.
npx -y @policylayer/intercept init