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Txpple

fvtt-mcp-molten5e

by Txpple

delete-lights

Remove ambient lights from a scene by specifying their IDs from list-lights. Missing IDs are reported without stopping the operation.

Instructions

Delete one or more AmbientLights from a scene by id (from list-lights). Missing ids are reported, never fatal. GM-only.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
lightIdsYesAmbientLight ids to delete (from list-lights).
sceneIdentifierYesScene id or exact name holding the placeables.
Behavior3/5

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

With no annotations, the description carries the burden. It discloses that missing ids are not fatal and that the tool is GM-only, but does not detail side effects, irreversibility, or cascading impacts on the scene.

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?

Two sentences, no wasted words. Front-loads the core action and follows with important behavioral notes.

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?

For a simple delete tool with two parameters and no output schema, the description covers the essential behavior, error handling, and access control. It is sufficiently complete for the tool's complexity.

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%, so the schema already describes both parameters. The description adds minimal value by referencing 'list-lights' for id sourcing, but does not elaborate on format or constraints beyond 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?

Description clearly states it deletes AmbientLights from a scene by id, specifying the resource and action. It differentiates from sibling delete tools by explicitly mentioning AmbientLights and scene context.

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?

Provides useful guidance: missing ids are reported but not fatal, and only GMs can use it. Implicitly suggests using 'list-lights' to get ids. However, it lacks explicit when-not-to-use or alternative tools.

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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