AI agents use set_server_url to create or update resources in Openaaas Mcp Adapter — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Openaaas Mcp Adapter environment.
This tool creates or modifies configuration data irreversibly by writing to a config file. While not destructive of user data per se, it alters system configuration that affects all subsequent operations of the MCP adapter. Misuse could redirect the adapter to malicious servers or break legitimate connectivity.
From the tool's definition Tool name 'set_server_url' with description '设置服务器地址并保存到配置文件' (Chinese: 'Set server address and save to configuration file'). The action modifies and persists configuration state to a file.
Documented attack patterns abuse exactly the kind of access set_server_url 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 set_server_url:
{
"version": "1",
"default": "deny",
"tools": {
"set_server_url": {
"limits": [
{
"counter": "set_server_url_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}set_server_url stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
设置服务器地址并保存到配置文件. It is categorised as a Write tool in the Openaaas Mcp Adapter MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Openaaas Mcp Adapter MCP server in PolicyLayer and add a rule for set_server_url: 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.
set_server_url is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the set_server_url 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 set_server_url. 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.
set_server_url 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.
Free to start. No card required.
16 Openaaas Mcp Adapter tools catalogued and risk-classified — across an index of 43,000+ MCP servers.