Get, add and update data in Microsoft SQL
Part of the Arcar Mcp server.
Free to start. No card required.
AI agents use Buscar_Vehiculos to create or modify resources in Arcar 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 Buscar_Vehiculos 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 Arcar Mcp.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"Buscar_Vehiculos": {
"limits": [
{
"counter": "buscar_vehiculos_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Arcar Mcp policy for all 6 tools.
These attack patterns abuse exactly the kind of access Buscar_Vehiculos 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.
Get, add and update data in Microsoft SQL. It is categorised as a Write tool in the Arcar Mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Arcar MCP server in PolicyLayer and add a rule for Buscar_Vehiculos: 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 Arcar Mcp. Nothing to install.
Buscar_Vehiculos 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 Buscar_Vehiculos 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 Buscar_Vehiculos. 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.
Buscar_Vehiculos is provided by the Arcar MCP server (https://nave.q2bot.com/mcp/arcar-org). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 6 Arcar Mcp tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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