AI agents use update_team to create or update resources in AI Cognitive Nexus — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your AI Cognitive Nexus environment.
The tool updates existing team configuration data, which is a reversible modification operation. It does not delete data (would be Destructive), execute arbitrary code (would be Execute), involve financial transactions (would be Financial), or merely read data (would be Read).
From the tool's definition Tool name is 'update_team' and description states '更新一个已存在团队的配置' (update an existing team's configuration). This modifies team settings/configuration data.
Documented attack patterns abuse exactly the kind of access update_team gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and AI Cognitive Nexus, and nothing reaches the server without passing your rules. This is the rule we recommend for update_team:
{
"version": "1",
"default": "deny",
"tools": {
"update_team": {
"limits": [
{
"counter": "update_team_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}update_team 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.
更新一个已存在团队的配置。. It is categorised as a Write tool in the AI Cognitive Nexus MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the AI Cognitive Nexus MCP server in PolicyLayer and add a rule for update_team: 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 AI Cognitive Nexus. Nothing to install.
update_team 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 update_team 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 update_team. 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.
update_team is provided by the AI Cognitive Nexus MCP server (simonutd/ai-cognitive-nexus-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from AI Cognitive Nexus, 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.
22 AI Cognitive Nexus tools catalogued and risk-classified — across an index of 43,000+ MCP servers.