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sam-david

unreal-mcp

by sam-david

render_sequence

Queue a Movie Render Queue job for a Level Sequence to render frames to a specified output directory.

Instructions

Queue a Movie Render Queue job for a sequence.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sequence_pathYesLevelSequence asset path
output_directoryNoOutput directory for rendered frames
Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral transparency. While it states the operation (queue a job), it does not disclose effects such as whether rendering starts immediately, what happens to existing jobs, or any prerequisites. Minimal behavioral detail is provided.

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 a single sentence with no filler. It front-loads the key action and resource, making it easy to parse and understand quickly.

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 tool is relatively simple with two parameters and no output schema. However, given the absence of annotations, the description leaves some ambiguity about expected return values or potential side effects. It is minimally complete for the narrow scope but lacks richer context.

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?

The input schema provides descriptions for both parameters (sequence_path and output_directory), covering 100% of the schema. The description adds no additional parameter semantics beyond what the schema already states, so the baseline of 3 applies.

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 uses a specific verb 'Queue' and a specific resource 'a Movie Render Queue job for a sequence', clearly distinguishing it from sibling tools such as take_screenshot or export_sequence_fbx. It is concise and unambiguous about what the tool does.

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

Usage Guidelines3/5

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

The description implies usage for rendering a sequence via Movie Render Queue, but it does not explicitly state when to use this tool over alternatives or mention any exclusions. Given the sibling tools, there is no comparison or guidance, so usage context is only implied.

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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