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Txpple

fvtt-mcp-molten5e

by Txpple

list-actor-ownership

Check which players have ownership access to actors in your Foundry VTT world. Specify an actor or player to filter results.

Instructions

List current ownership permissions for actors, showing which players have what access levels.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
actorIdentifierNoOptional: specific actor name/ID to check, or "all" for all actors
playerIdentifierNoOptional: specific player name to check ownership for
Behavior2/5

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

No annotations exist, and the description does not disclose behavioral traits such as required permissions, whether the operation is read-only, or any side effects. It merely restates the listing purpose.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single concise sentence (13 words) with no wasted words. It is front-loaded with the core action. Slightly more structure (e.g., separate param notes) could improve, but overall efficient.

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

Completeness2/5

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

Given no output schema and two optional parameters, the description fails to specify the output format, how 'all' works for actorIdentifier, or how permissions are returned. This leaves significant gaps for the agent.

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 description coverage for both parameters is 100%, so the schema already documents their meaning. The description adds no additional context beyond the schema, achieving the baseline for high coverage.

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 a specific verb ('list') and resource ('ownership permissions for actors'), and explicitly mentions the output ('showing which players have what access levels'). It distinguishes from sibling tools like 'list-actors' and 'set-actor-ownership'.

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

Usage Guidelines2/5

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

The description provides no guidance on when to use this tool versus alternatives (e.g., get-actor or set-actor-ownership). It lacks explicit 'when to use' or 'when not to use' instructions.

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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