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Beckett — MCP for Godot

batch_execute

Run several tool calls in order with automatic rollback of scene edits on failure. Collapse multi-step authoring into a single atomic call.

Instructions

Run several tool calls in one request, in order. steps = [{tool, args}]. Stops at the first failure (stop_on_error, default true). When a step fails, scene edits made by the batch are rolled back via the editor undo history (rollback, default true) — file/resource writes are not. Use to collapse multi-step authoring (create node → set props → attach script) into one atomic call.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
stepsYesordered [{tool: name, args: {...}}]
rollbackNoundo scene edits on failure (default true)
stop_on_errorNohalt on first failure (default true)
Behavior4/5

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

The description discloses key behaviors: execution order, stop_on_error default true, rollback of scene edits via undo history, and that file/resource writes are not rolled back. This adds value beyond the annotations (which are minimal).

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: a single sentence stating the main purpose followed by two sentences clarifying behavior and one usage example. It is front-loaded with the core action.

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 100% schema coverage, no output schema, and many sibling tools, the description adequately covers behavior, parameters, and usage. It does not explain return values, but that is not essential for a batch execution tool.

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 coverage is 100% with descriptions for all three parameters. The description adds context by explaining the format of steps (e.g., 'steps = [{tool, args}]') and default behaviors, but does not substantially extend the schema's meaning.

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 runs several tool calls in order, using a specific verb 'run' and resource 'tool calls'. It distinguishes from sibling tools that are individual calls like create_node or set_property, as this batches them.

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

Usage Guidelines4/5

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

It provides a concrete use case: 'collapse multi-step authoring (create node → set props → attach script) into one atomic call.' It also notes caveats like rollback not applying to file/resource writes. However, it lacks explicit when-not-to-use guidance.

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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