search_npm_packages

// WHEN AI AGENTS USE THIS TOOL

AI agents call search_npm_packages to retrieve information from Npm Search without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

// WHY ENFORCE A POLICY ON SEARCH_NPM_PACKAGES

Even though search_npm_packages only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

// RECOMMENDED POLICY

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

npm-search.yaml

tools:
  search_npm_packages:
    rules:
      - action: allow

See the full Npm Search policy for all 1 tools.

// DETAILS

Tool Name search_npm_packages

Category Read

MCP Server Npm Search MCP Server

Risk Level Low

// RELATED READING

// FAQ

What does the search_npm_packages tool do? +

Search for npm packages.. It is categorised as a Read tool in the Npm Search MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on search_npm_packages? +

Add a rule in your Intercept YAML policy under the tools section for search_npm_packages. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Npm Search MCP server.

What risk level is search_npm_packages? +

search_npm_packages is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit search_npm_packages? +

Yes. Add a rate_limit block to the search_npm_packages rule in your Intercept 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.

How do I block search_npm_packages completely? +

Set action: deny in the Intercept policy for search_npm_packages. 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.

What MCP server provides search_npm_packages? +

search_npm_packages is provided by the Npm Search MCP server (npm-search-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Npm Search