AI agents call discover to retrieve information from Openaaas Mcp Adapter without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool name 'discover' combined with the description meaning 'discover server-side API information' strongly suggests this is a read/query operation that retrieves metadata about available APIs. No write, execute, or destructive behavior is implied. Confidence is slightly reduced due to the brief description and the possibility that 'discovery' could trigger registration or side effects in some systems.
From the tool's definition 发现服务端 API 信息 — 'discover' and 'API information discovery' indicate retrieval of metadata/API info with no side effects
Documented attack patterns abuse exactly the kind of access discover gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Openaaas Mcp Adapter, and nothing reaches the server without passing your rules. This is the rule we recommend for discover:
{
"version": "1",
"default": "deny",
"tools": {
"discover": {}
}
}discover is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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发现服务端 API 信息. It is categorised as a Read tool in the Openaaas Mcp Adapter MCP Server, which means it retrieves data without modifying state.
Register the Openaaas Mcp Adapter MCP server in PolicyLayer and add a rule for discover: 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 Openaaas Mcp Adapter. Nothing to install.
discover 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 discover 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 discover. 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.
discover is provided by the Openaaas Mcp Adapter MCP server (wolido/openaaas). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Openaaas Mcp Adapter, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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16 Openaaas Mcp Adapter tools catalogued and risk-classified — across an index of 43,000+ MCP servers.