create_caption_track

Creates a caption track on a sequence from an imported caption/subtitle file (e.g. an .srt imported via import_media). Pass the SRT project item ID directly.

SERVERAdobe Premiere Pro SOURCEadobe-premiere-pro-mcp

Medium RISK CLASS

Category Write

Parameters 42 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/adobe-premiere-pro-mcp/create-caption-track.md

WHAT IT DOES

What create_caption_track does on Adobe Premiere Pro

AI agents use create_caption_track to create or update resources in Adobe Premiere Pro, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Adobe Premiere Pro environment.

Parameter	Type	Required	Description
`startTime`	number	—	Offset in seconds from the start of the sequence. Defaults to 0.
`sequenceId`	string	Yes	The ID of the sequence
`captionFormat`	string	—	Optional caption format. Omit for subtitles (default, correct for .srt). Accepts: "subtitle", "608", "708", "teletext", "open ebu", "op42", "op47".
`projectItemId`	string	Yes	The ID of the caption file project item (e.g. an imported .srt)

Parameters from the server's own tool schema.

RISK

Why create_caption_track is rated Medium

Creating a caption track is a write operation—it adds structured data to a project in Adobe Premiere Pro. The action is reversible (captions can be deleted or modified), so it does not qualify as Destructive. It does not execute arbitrary code, trigger financial transactions, or retrieve data passively, so it is not Execute, Financial, or Read.

From the tool's definition Tool description states it 'Creates a caption track', which is a create/modify operation that adds new data (captions) to a video sequence in an reversible manner.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_caption_track safely

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

create_caption_track Rate-limited

create_caption_track 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.

View as policy code

policy.json

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

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about create_caption_track

What does the create_caption_track tool do? +

Creates a caption track on a sequence from an imported caption/subtitle file (e.g. an .srt imported via import_media). Pass the SRT project item ID directly. It is categorised as a Write tool in the Adobe Premiere Pro MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does create_caption_track accept? +

create_caption_track accepts 4 parameters: startTime, sequenceId, captionFormat, projectItemId. Required: sequenceId, projectItemId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on create_caption_track? +

Register the Adobe Premiere Pro MCP server in PolicyLayer and add a rule for create_caption_track: 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 Adobe Premiere Pro. Nothing to install.

What risk level is create_caption_track? +

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

Can I rate-limit create_caption_track? +

Yes. Add a rate_limit block to the create_caption_track 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_caption_track completely? +

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

create_caption_track is provided by the Adobe Premiere Pro MCP server (adobe-premiere-pro-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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