Atualizar um lead existente (nome, valor, status, pipeline, etc.)
AI agents use update_lead to create or update resources in Kommo CRM MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Kommo CRM MCP Server environment.
This tool modifies lead data reversibly. It creates or updates lead information without deleting or executing arbitrary code. The severity is medium because incorrect updates could affect sales pipeline accuracy and customer relationship data, but changes are reversible and the tool is scoped to lead attribute modification rather than destructive operations or financial transactions.
From the tool's definition Tool name 'update_lead' combined with description 'Atualizar um lead existente (nome, valor, status, pipeline, etc.)' — updates existing lead records including name, value, status, and pipeline assignments.
Documented attack patterns abuse exactly the kind of access update_lead gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Kommo CRM MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for update_lead:
{
"version": "1",
"default": "deny",
"tools": {
"update_lead": {
"limits": [
{
"counter": "update_lead_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}update_lead 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.
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Atualizar um lead existente (nome, valor, status, pipeline, etc.). It is categorised as a Write tool in the Kommo CRM MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Kommo CRM MCP Server MCP server in PolicyLayer and add a rule for update_lead: 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 Kommo CRM MCP Server. Nothing to install.
update_lead 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_lead 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_lead. 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_lead is provided by the Kommo CRM MCP Server MCP server (miguelgbastos/kommo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Kommo CRM MCP Server, 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.
23 Kommo CRM MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.