load_voxel_projectLoad one private Cloud Project and return a short modelRef for later plugin calls. Requires project-read OAuth scope.
| Name | Required | Description | Default |
|---|---|---|---|
| language | No | en | |
| projectId | Yes |
Changes observed during successful MCP inspections.
Output schema / (root)Previous value: -{
- "additionalProperties": false,
- "properties": {
- "editUrl": {
- "format": "uri",
- "type": "string"
- },
- "modelRef": {
- "description": "Short temporary VoxelDraft model reference that expires after 7 days of inactivity",
- "maxLength": 64,
- "type": "string"
- },
- "project": {
- "additionalProperties": false,
- "properties": {
- "byte_size": {
- "minimum": 0,
- "type": "integer"
- },
- "created_at": {
- "minimum": 0,
- "type": "integer"
- },
- "id": {
- "type": "string"
- },
- "name": {
- "type": "string"
- },
- "updated_at": {
- "minimum": 0,
- "type": "integer"
- },
- "voxel_count": {
- "minimum": 0,
- "type": "integer"
- }
- },
- "required": [
- "id",
- "name",
- "voxel_count",
- "byte_size",
- "created_at",
- "updated_at"
- ],
- "type": "object"
- },
- "renderUrl": {
- "format": "uri",
- "type": "string"
- },
- "stats": {
- "additionalProperties": false,
- "properties": {
- "bounds": {
- "anyOf": [
- {
- "type": "null"
- },
- {
- "additionalProperties": false,
- "properties": {
- "max": {
- "items": {
- "maximum": 63,
- "minimum": 0,
- "type": "integer"
- },
- "maxItems": 3,
- "minItems": 3,
- "type": "array"
- },
- "min": {
- "items": {
- "maximum": 63,
- "minimum": 0,
- "type": "integer"
- },
- "maxItems": 3,
- "minItems": 3,
- "type": "array"
- },
- "size": {
- "items": {
- "maximum": 64,
- "minimum": 1,
- "type": "integer"
- },
- "maxItems": 3,
- "minItems": 3,
- "type": "array"
- }
- },
- "required": [
- "min",
- "max",
- "size"
- ],
- "type": "object"
- }
- ]
- },
- "colors": {
- "items": {
- "pattern": "^#[0-9a-fA-F]{6}$",
- "type": "string"
- },
- "maxItems": 512,
- "type": "array"
- },
- "commandCount": {
- "maximum": 512,
- "minimum": 0,
- "type": "integer"
- },
- "voxelCount": {
- "maximum": 100000,
- "minimum": 0,
- "type": "integer"
- }
- },
- "required": [
- "voxelCount",
- "commandCount",
- "colors",
- "bounds"
- ],
- "type": "object"
- }
- },
- "required": [
- "project",
- "modelRef",
- "stats",
- "editUrl",
- "renderUrl"
- ],
- "type": "object"
-}New value: +nullOutput schema / (root)Previous value: -nullNew value: +{
+ "additionalProperties": false,
+ "properties": {
+ "editUrl": {
+ "format": "uri",
+ "type": "string"
+ },
+ "modelRef": {
+ "description": "Short temporary VoxelDraft model reference that expires after 7 days of inactivity",
+ "maxLength": 64,
+ "type": "string"
+ },
+ "project": {
+ "additionalProperties": false,
+ "properties": {
+ "byte_size": {
+ "minimum": 0,
+ "type": "integer"
+ },
+ "created_at": {
+ "minimum": 0,
+ "type": "integer"
+ },
+ "id": {
+ "type": "string"
+ },
+ "name": {
+ "type": "string"
+ },
+ "updated_at": {
+ "minimum": 0,
+ "type": "integer"
+ },
+ "voxel_count": {
+ "minimum": 0,
+ "type": "integer"
+ }
+ },
+ "required": [
+ "id",
+ "name",
+ "voxel_count",
+ "byte_size",
+ "created_at",
+ "updated_at"
+ ],
+ "type": "object"
+ },
+ "renderUrl": {
+ "format": "uri",
+ "type": "string"
+ },
+ "stats": {
+ "additionalProperties": false,
+ "properties": {
+ "bounds": {
+ "anyOf": [
+ {
+ "type": "null"
+ },
+ {
+ "additionalProperties": false,
+ "properties": {
+ "max": {
+ "items": {
+ "maximum": 63,
+ "minimum": 0,
+ "type": "integer"
+ },
+ "maxItems": 3,
+ "minItems": 3,
+ "type": "array"
+ },
+ "min": {
+ "items": {
+ "maximum": 63,
+ "minimum": 0,
+ "type": "integer"
+ },
+ "maxItems": 3,
+ "minItems": 3,
+ "type": "array"
+ },
+ "size": {
+ "items": {
+ "maximum": 64,
+ "minimum": 1,
+ "type": "integer"
+ },
+ "maxItems": 3,
+ "minItems": 3,
+ "type": "array"
+ }
+ },
+ "required": [
+ "min",
+ "max",
+ "size"
+ ],
+ "type": "object"
+ }
+ ]
+ },
+ "colors": {
+ "items": {
+ "pattern": "^#[0-9a-fA-F]{6}$",
+ "type": "string"
+ },
+ "maxItems": 512,
+ "type": "array"
+ },
+ "commandCount": {
+ "maximum": 512,
+ "minimum": 0,
+ "type": "integer"
+ },
+ "voxelCount": {
+ "maximum": 100000,
+ "minimum": 0,
+ "type": "integer"
+ }
+ },
+ "required": [
+ "voxelCount",
+ "commandCount",
+ "colors",
+ "bounds"
+ ],
+ "type": "object"
+ }
+ },
+ "required": [
+ "project",
+ "modelRef",
+ "stats",
+ "editUrl",
+ "renderUrl"
+ ],
+ "type": "object"
+}Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations declare readOnlyHint=false despite a 'Load' verb, which is non-obvious, and the description adds a concrete auth requirement ('Requires project-read OAuth scope') not present in annotations. It also discloses the return artifact (short modelRef for later plugin calls), going beyond structured fields. It does not, however, clarify why a load is not read-only or detail side effects.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two concise sentences that front-load the action and outcome, then the prerequisite. No filler.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple 2-param loader with no output schema, the description covers purpose, auth requirement, and return value, which is nearly complete. It could add minor detail on the language parameter or the modelRef format, but nothing critical is missing.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description must compensate; it adds some meaning by implying projectId identifies the private Cloud Project and noting the modelRef output. But it does not explain the language enum or the maxLength constraint. Baseline 3 is appropriate given partial compensation for a 2-param schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
States a specific verb (Load) and resource (one private Cloud Project/VoxelDraft project) with a clear outcome: returning a modelRef for later plugin calls. It is distinguishable from list_voxel_projects by loading a single project rather than listing. It doesn't explicitly contrast with siblings like inspect_voxel_model, but the purpose is clear.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies you use this to obtain a modelRef before other plugin calls, which is useful implied workflow guidance. However, it does not state when to choose this tool over alternatives such as inspect_voxel_model or list_voxel_projects, nor any exclusions. Usage is implied rather than explicit.
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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