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yanjingzhaisun

cozyvtt-mcp

Session Manage

session_manage

Start, pause, or end a CozyVTT game session as DM. Control session flow and keep your campaign on track.

Instructions

场次管理(DM only)。action: start / pause / end。

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
actionYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. First observedv0.1.0

TDQS

B3.2/5.0
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 disclosure. It reveals the role restriction and the three actions, but does not explain what starting, pausing, or ending a session actually does, what side effects occur, or whether any action is irreversible.

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 very short and front-loads the key information: the tool name, the role restriction, and the accepted actions. There is no redundant content, though more detail would be welcome given the lack of annotations.

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?

For a tool with only one parameter and an output schema present, the description is minimally viable: it tells the agent the role and the valid actions. Still, the absence of behavioral detail and usage context leaves notable gaps for an agent deciding how and when to invoke it.

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 schema provides no description or enum for the single 'action' parameter, and schema coverage is 0%. The description compensates by listing the valid action values (start / pause / end), which is essential, but it does not elaborate on the meaning or expected effect of each value.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states the resource (session) and the supported operations (start, pause, end), which makes the tool's purpose understandable. It is not perfectly differentiated from siblings like initiative_manage, but the action list narrows the semantics enough.

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 includes a clear access restriction, 'DM only', which tells the agent who may use it. However, it does not explain when to choose this tool over alternatives such as initiative_manage or how session management fits in a typical flow.

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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