Search active substances (matières actives) in the e-phy catalog, including their approval status and expiration date.
AI agents call search_active_substances to retrieve information from E-phy MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The search_active_substances tool only retrieves and queries information about active substances from the e-phy catalog. It does not create, modify, delete, or execute operations. The approval status and expiration dates are public regulatory data. Misuse (e.g., searching for many substances) poses minimal risk and causes no harm to data or systems.
From the tool's definition Tool description states it 'Search[es] active substances... including their approval status and expiration date' — a retrieval/query operation with no modification or side effects.
Attacks that exploit this kind of access
Search active substances (matières actives) in the e-phy catalog, including their approval status and expiration date. It is categorised as a Read tool in the E-phy MCP Server MCP Server, which means it retrieves data without modifying state.
Register the E-phy MCP Server MCP server in PolicyLayer and add a rule for search_active_substances: 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 E-phy MCP Server. Nothing to install.
search_active_substances is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the search_active_substances 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 search_active_substances. 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.
search_active_substances is provided by the E-phy MCP Server MCP server (neayi/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →