2 tools. 2 can modify or destroy data without limits.
1 write tool that can modify data. Rate limits recommended.
Last updated:
Write operations (echo) modify state. Without rate limits, an agent can make hundreds of changes in seconds — faster than any human can review or revert.
Intercept sits between your agent and Mcp Echo. 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 @mcp-echo-server echo:
rules:
- rate_limit: 30/hour Prevents bulk unintended modifications from agents caught in loops.
The Mcp Echo server has 1 write tools including echo. 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.
2 tools across 2 categories: Other, Write. 0 are read-only. 2 can modify, create, or delete data.
One line change. Instead of running the Mcp Echo server directly, prefix it with Intercept: intercept -c io-github-bharath-krishna-mcp-test.yaml -- npx -y @mcp-echo-server. Download a pre-built policy from policylayer.com/policies/io-github-bharath-krishna-mcp-test and adjust the limits to match your use case.
Set budgets, approvals, and hard limits across MCP servers.
npx -y @policylayer/intercept init