create_filter

Create a filter rule to BLOCK or REJECT queries matching specific criteria. REQUIRES: ruleset_name, filter_name, description. OPTIONAL: classification_criteria, action (

ServerTeradata Workload Management (WLM) MCP Server
CategoryWrite

How to control create_filter ↓

WHAT IT DOES

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

AI agents use create_filter to create or update resources in Teradata Workload Management (WLM) MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Teradata Workload Management (WLM) MCP Server environment.

THE RISK

Medium Risk

Why create_filter needs a policy

This tool creates a new filter rule that can block or reject queries. While it's a Write operation (creating a new rule), it carries high severity because misconfiguration or misuse by an AI agent could block legitimate queries, causing denial-of-service-like effects on database workloads. However, it is reversible (filters can be deleted/disabled), so it does not qualify as Destructive.

From the tool's definition 'Create a filter rule to BLOCK or REJECT queries matching specific criteria' — creates a new filter rule with blocking/rejecting action

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

POLICY

How to control create_filter

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 create_filter:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_filter": {
      "limits": [
        {
          "counter": "create_filter_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

create_filter 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.

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.

LIMIT 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.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about create_filter

What does the create_filter tool do? +

Create a filter rule to BLOCK or REJECT queries matching specific criteria. REQUIRES: ruleset_name, filter_name, description. OPTIONAL: classification_criteria, action (. It is categorised as a Write tool in the Teradata Workload Management (WLM) MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_filter? +

Register the Teradata Workload Management (WLM) MCP Server MCP server in PolicyLayer and add a rule for create_filter: 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 create_filter? +

create_filter is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_filter? +

Yes. Add a rate_limit block to the create_filter 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 create_filter completely? +

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

create_filter 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.