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leancoderkavy

Premiere Pro MCP Server

Open In Source

open_in_source

Open a project item in the Source Monitor to preview and trim footage.

Instructions

Open a project item in the Source Monitor for preview and trimming.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
item_idYesNode ID or name of the project item to open

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
okYesWhether the tool completed successfully.
dataNoTool-specific result data when ok is true.
toolYesThe registered MCP tool name.
errorNoFailure detail when ok is false.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changedv1.14.4
    • changedInput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "$schema": "https://json-schema.org/draft/2020-12/schema",
      +  "additionalProperties": false,
      +  "properties": {
      +    "data": {
      +      "description": "Tool-specific result data when ok is true."
      +    },
      +    "error": {
      +      "description": "Failure detail when ok is false.",
      +      "type": "string"
      +    },
      +    "ok": {
      +      "description": "Whether the tool completed successfully.",
      +      "type": "boolean"
      +    },
      +    "tool": {
      +      "description": "The registered MCP tool name.",
      +      "minLength": 1,
      +      "type": "string"
      +    }
      +  },
      +  "required": [
      +    "ok",
      +    "tool"
      +  ],
      +  "type": "object"
      +}
  2. Changed1 schema field changedv1.4.0
    • removedInput schema / additionalProperties
      Removed value: -false
  3. First observedv1.1.1

TDQS

A3.6/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The annotations provide no meaningful safety or behavior signals (all hints are false), so the description carries the burden. It discloses only that the item will be opened in the Source Monitor, but does not mention that the Source Monitor's current item may be replaced, whether playback is affected, or any side effects beyond opening.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is one efficient sentence that front-loads the action and destination while adding the purpose. Every word earns its place, with no padding or repetition.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple one-parameter tool with a full schema and output schema present, the description is nearly complete. It covers what the tool does and its purpose. The main missing element is explicit guidance on side effects in the Source Monitor, but this is a minor gap for such a straightforward operation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema already fully documents the single parameter (item_id) with a clear description including accepted forms ('Node ID or name'). The tool description does not add extra meaning, but none is needed given the schema's 100% coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses a specific verb ('Open') with a clear resource ('a project item') and target location ('Source Monitor'), plus the intended purpose ('preview and trimming'). It is easily distinguished from sibling tools like close_source_monitor, play_source_monitor, and get_source_monitor_info.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies when to use this tool ('for preview and trimming') and clearly names the destination (Source Monitor), but it does not explicitly compare against alternatives or state when not to use it. This leaves the routing decision mostly to the agent's inference.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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