media_get_node_schema

按已发现的准确 classType 从本地快照读取 ComfyUI 节点端口、标量约束、模型及安全选项；首次没有快照才拉取。可在编写工作流之前调用，需要更新时先调用 media_list_resources(kind=nodes, refresh=true)；不返回已有远端素材文件名。

SERVERDutyDeck SOURCEtaokoplay/DutyDeck

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/dutydeck/media-get-node-schema.md

WHAT IT DOES

What media_get_node_schema does on DutyDeck

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

RISK

Why media_get_node_schema is rated Low

Even though media_get_node_schema only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs media_get_node_schema safely

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

media_get_node_schema Allowed

media_get_node_schema 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": {
    "media_get_node_schema": {}
  }
}

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

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

FAQ

Questions about media_get_node_schema

What does the media_get_node_schema tool do? +

按已发现的准确 classType 从本地快照读取 ComfyUI 节点端口、标量约束、模型及安全选项；首次没有快照才拉取。可在编写工作流之前调用，需要更新时先调用 media_list_resources(kind=nodes, refresh=true)；不返回已有远端素材文件名。. It is categorised as a Read tool in the DutyDeck MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on media_get_node_schema? +

Register the DutyDeck MCP server in PolicyLayer and add a rule for media_get_node_schema: 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 DutyDeck. Nothing to install.

What risk level is media_get_node_schema? +

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

Can I rate-limit media_get_node_schema? +

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

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

media_get_node_schema is provided by the DutyDeck MCP server (taokoplay/DutyDeck). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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