AI agents call carregar_projeto to retrieve information from Maestro without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool loads or retrieves an existing project without creating, modifying, or deleting data. It is a read-only operation with no side effects. The internal annotation suggests it is a utility function for accessing project state, not for making changes.
From the tool's definition Tool name 'carregar_projeto' (load project) and description 'Carrega projeto existente' (Loads existing project) indicate a retrieval operation with no modification.
Attacks that exploit this kind of access
[Interno] Carrega projeto existente. Use. It is categorised as a Read tool in the Maestro MCP Server, which means it retrieves data without modifying state.
Register the Maestro MCP server in PolicyLayer and add a rule for carregar_projeto: 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 Maestro. Nothing to install.
carregar_projeto 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 carregar_projeto 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 carregar_projeto. 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.
carregar_projeto is provided by the Maestro MCP server (matheus-gama-deluna/maestro). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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