32 tools. 12 can modify or destroy data without limits.
4 destructive tools with no built-in limits. Policy required.
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Financial operations (deposit_and_mint, deposit_savings, withdraw_collateral) can move real money. An agent caught in a loop could drain accounts before anyone notices.
Write operations (approve_token, close_vault, connect_browser_wallet) modify state. Without rate limits, an agent can make hundreds of changes in seconds — faster than any human can review or revert.
deposit_and_mint:
rules:
- action: deny Financial tools should be explicitly enabled per use case, not open by default.
approve_token:
rules:
- rate_limit: 30/hour Prevents bulk unintended modifications from agents caught in loops.
analyze_vault_risk:
rules:
- rate_limit: 60/minute Controls API costs and prevents retry loops from exhausting upstream rate limits.
Yes. The Usdd Test server exposes 4 financial tools including deposit_and_mint, deposit_savings, withdraw_collateral. 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.
The Usdd Test server has 8 write tools including approve_token, close_vault, connect_browser_wallet. 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.
32 tools across 3 categories: Financial, Read, Write. 20 are read-only. 12 can modify, create, or delete data.
One line change. Instead of running the Usdd Test server directly, prefix it with Intercept: intercept -c usdd-test.yaml -- npx -y @mcp-server-usdd-test. Download a pre-built policy from policylayer.com/policies/usdd-test and adjust the limits to match your use case.
Starter policies available for each. Same risk classification, same one-command setup.
Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.