show_sessions

ServerTeradata Workload Management (WLM) MCP Server
CategoryRead

WHAT IT DOES

What show_sessions does on Teradata Workload Management (WLM) MCP Server

AI agents call show_sessions to retrieve information from Teradata Workload Management (WLM) MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why show_sessions needs a policy

This tool retrieves and displays information about active database sessions without modifying, deleting, or executing any operations. It is purely informational and has no side effects on the system. The blast radius of misuse is minimal—an agent could at most gather metadata about running sessions, which does not compromise system integrity or cause operational harm.

From the tool's definition Tool name is 'show_sessions' and description states it 'Display[s] all active database sessions' and 'Returns session details including session number, username, SQL text, runtime, and state.' These are read-only retrieval operations with no modification,…

Documented attack patterns abuse exactly the kind of access show_sessions gives an agent:

POLICY

How to control show_sessions

PolicyLayer is an MCP gateway — it sits between your AI agents and Teradata Workload Management (WLM) MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for show_sessions:

policy.json

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

show_sessions is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Teradata Workload Management (WLM) MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

More Teradata Workload Management (WLM) MCP Server tools

Destructive abort_delayed_request CANCEL and permanently abort a delayed query in the queue. The query will not execute and Destructive delete_filter PERMANENTLY DELETE a filter rule. REQUIRES: ruleset_name, filter_name. CHANGES REQUIRE ACT Destructive delete_throttle PERMANENTLY DELETE a throttle rule from the ruleset configuration. REQUIRES: ruleset_name, Destructive abort_sessions_user TERMINATES all active sessions for a specified user. This immediately kills all running qu Execute release_delay_queue Release a delayed query from the queue, allowing it to execute immediately. Use this to ma Execute activate_ruleset ACTIVATE a ruleset to apply ALL pending configuration changes to the live system. MUST BE Write add_classification_to_rule Add classification criteria to an existing rule (throttle, filter, or workload). Classific Write add_subcriteria_to_target Add sub-criteria to a target classification for advanced rule targeting. Sub-criteria type

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
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Rate Limiting MCP Tool Calls: A Practical Guide →
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FAQ

Questions about show_sessions

What does the show_sessions tool do? +

Display all active database sessions for the current user. Use this to monitor running queries, identify long-running operations, find session IDs for detailed analysis, or check current database activity. Returns session details including session number, username, SQL text, runtime, and state. It is categorised as a Read tool in the Teradata Workload Management (WLM) MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on show_sessions? +

Register the Teradata Workload Management (WLM) MCP Server MCP server in PolicyLayer and add a rule for show_sessions: 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 Teradata Workload Management (WLM) MCP Server. Nothing to install.

What risk level is show_sessions? +

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

Can I rate-limit show_sessions? +

Yes. Add a rate_limit block to the show_sessions 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_sessions completely? +

Set action: deny in the PolicyLayer policy for show_sessions. 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_sessions? +

show_sessions is provided by the Teradata Workload Management (WLM) MCP Server MCP server (teradata-labs/mcp-server-teradata-wlm). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Teradata Workload Management (WLM) MCP Server tool call.

Start from Teradata Workload Management (WLM) MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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41 Teradata Workload Management (WLM) MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.