Cria ou atualiza uma pessoa. action=create: requer nome e (cpf|cnpj) — passe os campos via data (JSON). action=update: requer id e os campos a alterar em data (JSON). [Flattened action: create] Bulk support: accepts ids for batched execution.
Part of the Conta Azul MCP server.
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AI agents use contaazul_person_write_create to create or modify resources in Conta Azul MCP. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call contaazul_person_write_create repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Conta Azul MCP.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"contaazul_person_write_create": {
"limits": [
{
"counter": "contaazul_person_write_create_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Conta Azul MCP policy for all 37 tools.
These attack patterns abuse exactly the kind of access contaazul_person_write_create gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Cria ou atualiza uma pessoa. action=create: requer nome e (cpf|cnpj) — passe os campos via data (JSON). action=update: requer id e os campos a alterar em data (JSON). [Flattened action: create] Bulk support: accepts ids for batched execution.. It is categorised as a Write tool in the Conta Azul MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Conta Azul MCP server in PolicyLayer and add a rule for contaazul_person_write_create: 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 Conta Azul MCP. Nothing to install.
contaazul_person_write_create 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 contaazul_person_write_create 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 contaazul_person_write_create. 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.
contaazul_person_write_create is provided by the Conta Azul MCP server (https://api.mcp.ai/contaazul). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 37 Conta Azul MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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