show_open_tables

Show open tables in the table cache.

SERVERMcp Windows SOURCEmukul975/mcp-windows-automation

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mukul975-mcp-windows-automation/show-open-tables.md

WHAT IT DOES

What show_open_tables does on Mcp Windows

AI agents call show_open_tables to retrieve information from Mcp Windows without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why show_open_tables is rated Low

This tool retrieves information about currently open tables in the table cache, which is a read-only diagnostic operation. It queries existing system state and does not create, modify, delete, or execute any operations. The query has no side effects beyond returning information to the user.

From the tool's definition Tool name 'show_open_tables' and description 'Show open tables in the table cache' indicate a query/retrieval operation that reads system state without modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs show_open_tables safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp Windows, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For show_open_tables, this is the rule to start with:

show_open_tables Allowed

show_open_tables is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "show_open_tables": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp Windows, apply this rule, and every show_open_tables call is checked against it from then on.

FAQ

Questions about show_open_tables

What does the show_open_tables tool do? +

Show open tables in the table cache. It is categorised as a Read tool in the Mcp Windows MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on show_open_tables? +

Register the Mcp Windows MCP server in PolicyLayer and add a rule for show_open_tables: 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.

What risk level is show_open_tables? +

show_open_tables is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit show_open_tables? +

Yes. Add a rate_limit block to the show_open_tables 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.

How do I block show_open_tables completely? +

Set action: deny in the PolicyLayer policy for show_open_tables. 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.

What MCP server provides show_open_tables? +

show_open_tables 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.

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