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Premiere Pro MCP Server

Slip Edit

slip_edit

Perform a verified slip edit by offsetting a clip's source in/out properties, so you can change which frames appear without altering its position on the timeline.

Instructions

Perform a verified slip edit on a clip using public source in/out properties.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
node_idYesNode ID of the clip
offset_secondsYesOffset in seconds (positive = slip forward in source, negative = slip backward)

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. Addedv1.1.5
  4. Removedv1.1.5
  5. First observedv1.1.1

TDQS

B3.1/5.0
Behavior2/5

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

Annotations provide no meaningful behavior coverage (readOnlyHint=false is the only signal), so the description carries the burden. It does not disclose what 'verified' means, what side effects occur, what happens to the clip's source in/out and timeline position, or how failures are surfaced.

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 a single front-loaded sentence with no filler. Every phrase ('verified slip edit', 'public source in/out properties') contributes to identifying the operation.

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

Completeness3/5

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

With an output schema and fully documented parameters, the core invocation is covered. However, for a mutating operation with empty behavioral annotations, the description should explain what verification happens, what prerequisites apply, and how the edit affects the clip; these gaps leave the context only minimally complete.

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?

Schema coverage is 100%: node_id and offset_seconds are each documented, with offset_seconds already explaining positive/negative direction. The description adds only the general slip-edit framing, so it meets the baseline without significantly enhancing parameter understanding.

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

Purpose4/5

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

The description states a specific action ('Perform a verified slip edit on a clip') and names the operand (a clip) plus the mechanism ('using public source in/out properties'). It clearly identifies the tool's function, though it does not explicitly contrast it with sibling edit operations like roll_edit or slide_edit.

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

Usage Guidelines2/5

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

No guidance is given on when to use slip_edit instead of the many related edit tools, nor are any conditions or exclusions stated. The phrase 'using public source in/out properties' hints at an eligibility constraint but never explains what makes a clip eligible.

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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