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TypeScript
Hybrid

Set Scale To Frame Size

set_scale_to_frame_size

Resize a selected project item to match the sequence frame by enabling Scale to Frame Size. Prevents letterboxing and ensures full-frame display.

Instructions

Enable 'Scale to Frame Size' on a project item so it fills the sequence frame

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
item_idYesNode ID or name of the project item

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

A3.6/5.0
Behavior3/5

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

Annotations already indicate this is a mutating non-destructive operation, and the description adds that it enables a specific property with a fill-frame effect. However, it does not disclose side effects, reversibility, or what happens to existing scale values, which is relevant given idempotentHint is false.

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 focused sentence that front-loads the verb and setting. Every phrase contributes meaning and there is no redundant or boilerplate text.

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 single-parameter, non-destructive toggle operation with an output schema and annotations, the description is nearly complete: it identifies the target and the result. It would be stronger with a brief note on how it differs from manual scale adjustment siblings.

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 description coverage is 100%, and the only parameter item_id is already documented as 'Node ID or name of the project item'. The description adds no additional parameter-level detail beyond what the schema provides.

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 operation ('Enable Scale to Frame Size'), a specific resource ('a project item'), and the intended outcome ('fills the sequence frame'). It is not a tautology of the title, but it does not explicitly contrast itself with similar scale-related siblings such as set_clip_scale or set_scale_width_height.

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 purpose clause implies the tool should be used when a project item needs to fill the sequence frame, but there is no explicit when-to-use or when-not-to-use guidance. It does not mention alternatives among the scale-related sibling tools.

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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