AI agents use add_partition to create or update resources in Mcp Windows — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Windows environment.
This tool creates or modifies database schema by adding partitions to tables. This is a reversible write operation (partitions can be removed), not a read-only query. While potentially disruptive if misused (could affect query performance or cause table locks), it does not irreversibly destroy data like Destructive category operations.
From the tool's definition Tool name 'add_partition' and description 'Add a partition to a table' indicate creation of a new table partition, which modifies database structure and data organization.
Documented attack patterns abuse exactly the kind of access add_partition gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Windows, and nothing reaches the server without passing your rules. This is the rule we recommend for add_partition:
{
"version": "1",
"default": "deny",
"tools": {
"add_partition": {
"limits": [
{
"counter": "add_partition_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}add_partition 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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Add a partition to a table. It is categorised as a Write tool in the Mcp Windows MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Mcp Windows MCP server in PolicyLayer and add a rule for add_partition: 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 Mcp Windows. Nothing to install.
add_partition 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 add_partition 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 add_partition. 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.
add_partition is provided by the Mcp Windows MCP server (mukul975/mcp-windows-automation). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 441 Mcp Windows tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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441 Mcp Windows tools catalogued and risk-classified — across an index of 42,500+ MCP servers.