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save_blend_as

Save the active Blender scene as a new file in the workspace, keeping the current document open. Choose subfolder, compression, and overwrite options to manage copies.

Instructions

Save a copy of the scene into the workspace.

Never writes outside the workspace and, by default, never changes which file Blender considers open.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
categoryNoWorkspace subdirectory to save intocheckpoints
compressNo
filenameYesFilename stem, no path
overwriteNo
switch_to_newNoMake Blender adopt the new file as the open document. Off by default, so this saves a copy and leaves the user's file active.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A3.9/5.0
Behavior3/5

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

With no annotations, the description carries the behavioral burden. It usefully discloses two key side effects: never writing outside the workspace and not changing the open file by default. However, it does not explain behavior when overwrite=false and a file already exists, nor what the operation returns, leaving some behavioral uncertainty for a write operation.

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?

Two short sentences with no filler. The core purpose is front-loaded, and the second sentence earns its place by stating critical safety and side-effect boundaries.

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?

The safety and scope statements are sufficient for an agent to select the tool correctly, and the schema fills in most parameter details. However, since this is a mutating save operation with no output schema, the absence of any statement about overwrite conflicts or result/return behavior leaves some context missing.

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 60%, with descriptions already present for category, filename, and switch_to_new. The description adds little parameter-level meaning beyond that, mostly restating the switch_to_new default. Compress and overwrite remain undocumented in both the schema and description, though their names and defaults are fairly self-explanatory.

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 opens with a specific verb and resource: 'Save a copy of the scene into the workspace.' The word 'copy' clearly distinguishes this from in-place save tools like save_blend, and 'workspace' separates it from export_* siblings. The tool's identity is unmistakable.

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

Usage Guidelines4/5

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

The description provides clear context for use: it is the tool for writing a .blend copy into the workspace without changing Blender's active document by default. It does not explicitly name alternatives such as save_blend or create_checkpoint, nor state when not to use them, so it stops short of full routing guidance.

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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