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aadeshrao123

Unreal-MCP

by aadeshrao123

list_statetree_enum_values

Discover valid enum values for Unreal Engine StateTree properties before creating states, transitions, or conditions. Supports categories like trigger, priority, state_type, and more.

Instructions

List valid enum values for StateTree properties.

Use this to discover valid values BEFORE creating states, transitions, or conditions. Does not require an asset_path — these are engine-level constants.

Categories:

  • "trigger": OnStateCompleted, OnStateSucceeded, OnStateFailed, OnTick, OnEvent

  • "priority": Low, Normal, Medium, High, Critical

  • "state_type": State, Group, Linked, LinkedAsset, Subtree

  • "selection_behavior": None, TryEnterState, TrySelectChildrenInOrder, etc.

  • "operand": And, Or (for condition expressions)

Args: category: One of: trigger, priority, state_type, selection_behavior, operand

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
categoryYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior4/5

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

No annotations exist, but the description implies a safe read operation by listing enum values without side effects. It could explicitly state it is read-only, but the intent is clear.

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 concise, well-structured with a clear paragraph, bullet list of categories, and an Args section. Every sentence adds value without redundancy.

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

Completeness5/5

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

Given the complexity (single parameter, output schema exists), the description covers usage, parameter semantics, and enumeration examples comprehensively, leaving no important gaps.

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

Parameters5/5

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

With 0% schema coverage, the description fully defines the single 'category' parameter by listing all valid values and providing examples for each, compensating entirely for the schema gap.

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 it 'List valid enum values for StateTree properties' and distinguishes itself from sibling statetree tools by focusing on enum discovery before creation tasks.

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

Usage Guidelines5/5

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

Explicitly advises to use 'BEFORE creating states, transitions, or conditions' and notes it doesn't require an asset_path, making usage context crystal clear.

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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