transport_set_time

Set the playback time of the specified layer

SERVERPropresenter SOURCE@alxpark/propresenter-mcp

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-alxpark-propresenter-mcp/transport-set-time.md

WHAT IT DOES

What transport_set_time does on Propresenter

AI agents invoke transport_set_time to trigger actions in Propresenter. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

RISK

Why transport_set_time is rated High

This tool modifies the playback state of a media layer in ProPresenter by seeking to a specific time position. It triggers an external operation (changing transport/playback position) rather than simply reading data or persistently writing/deleting content. It falls under Execute as it controls live presentation software behavior.

From the tool's definition Set the playback time of the specified layer

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs transport_set_time safely

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

transport_set_time Rate-limited

transport_set_time stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "transport_set_time": {
      "limits": [
        {
          "counter": "transport_set_time_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about transport_set_time

What does the transport_set_time tool do? +

Set the playback time of the specified layer. It is categorised as a Execute tool in the Propresenter MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on transport_set_time? +

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

What risk level is transport_set_time? +

transport_set_time is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit transport_set_time? +

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

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

transport_set_time is provided by the Propresenter MCP server (@alxpark/propresenter-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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