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haotranq1234

Blockbench MCP Bridge

by haotranq1234

blockbench_export_model

Export 3D models to formats like Minecraft Java item JSON or .bbmodel using the active format codec.

Instructions

Export using the active format codec, such as a Minecraft Java item JSON, or use codec 'project' for .bbmodel.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pathYes
codecNo
Behavior2/5

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

With no annotations, the description must disclose behavior. It hints at codec-driven export but does not mention side effects (e.g., file creation, overwriting), required permissions, or what determines the 'active' codec. Too brief to inform safe usage.

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

Conciseness3/5

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

The description is a single sentence, which is concise, but lacks structure (no separation of purpose, usage, or details). It's appropriately short but not well-organized.

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

Completeness1/5

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

Given 2 parameters, no output schema, and no annotations, the description is severely incomplete. It fails to explain the return value, codec options, path requirements, or any behavioral details, leaving the agent with insufficient context.

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

Parameters1/5

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

Schema coverage is 0% for both parameters. The description only mentions 'codec' with examples but does not explain the required 'path' parameter (format, purpose). It adds minimal meaning beyond the schema.

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

Purpose3/5

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

The description states it exports using a codec and gives examples (Minecraft Java item JSON, .bbmodel). However, 'active format codec' is vague and doesn't clearly define the tool's primary action. It distinguishes from siblings like save or capture, but could be more explicit.

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 on when to use this tool vs alternatives like blockbench_save_project or blockbench_capture_preview. The description does not mention prerequisites, limitations, or preferred scenarios.

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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