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ryuto-alt

DX12 Engine MCP Server

by ryuto-alt

Transform 設定

dx12_set_transform
Idempotent

Update an entity's transform by setting position, rotation (Euler degrees or quaternion), and scale. Only specified fields are updated and changes take effect instantly.

Instructions

エンティティの Transform を設定する。指定したフィールドだけ更新。回転は rotation(Euler 度) か quaternion([x,y,z,w]) のどちらか。即時反映で ok を返す。

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameNoエンティティ名(完全一致)。id の代わりに使える。Stop 後など id が変わる場面で安定。
scaleNo[x,y,z]
entityNoエンティティ id(int)。name と排他。
positionNo[x,y,z]
rotationNo[x,y,z] Euler 度。quaternion と併用しない。
quaternionNo[x,y,z,w] クォータニオン。rotation と併用しない。

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultNoエンジンからの生の結果。実際の形は各ツールの説明 / dx12_describe_components を参照。text にも同内容を JSON 文字列で格納。
Behavior3/5

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

Annotations already provide idempotentHint=true, and the description adds that changes take effect immediately and return ok. No further behavioral traits are disclosed, such as side effects on physics or required permissions. The description adds value but is not extensive.

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?

Three sentences, each providing key information: purpose, behavior (partial updates), and rotation options. No redundant words; the description is concise and front-loaded.

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?

Given the output schema exists (returns ok) and annotations cover idempotency, the description is largely complete. It explains the two rotation modes and partial updates. Missing details about error conditions or return value format, but sufficient for basic use.

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%, so baseline is 3. The description adds context about rotation alternatives (Euler vs quaternion) and partial field updates, but this is already implied by the parameter descriptions in the schema.

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 clearly states the tool sets an entity's transform, updates only specified fields, and explains rotation options (Euler or quaternion). It distinguishes from sibling tools like dx12_set_color or dx12_set_component by focusing on transform.

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 explicit guidance on when to use this tool versus alternatives like dx12_set_parent or dx12_set_component. The description implies partial updates but does not specify prerequisites or when not to use it.

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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