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Leuconoe

ryubing-mcp

by Leuconoe

List Ryubing sessions

ryubing_list_sessions
Read-onlyIdempotent

List all managed Ryubing processes and the external default bridge to monitor active emulator sessions.

Instructions

List the external default bridge and all managed Ryubing processes.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, covering the safety profile. The description adds specificity about the list's contents, but does not disclose any additional behavioral traits like return format or whether authentication is needed. This matches the baseline where annotations do the heavy lifting.

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 focused sentence with no filler or repetition. It efficiently conveys the tool's purpose without wasting words.

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?

This is a simple list operation with no parameters and no output schema. The description sufficiently indicates what will be listed, though it does not explicitly mention the return format. Given the tool's simplicity, this is adequate.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has zero parameters, and schema coverage is trivially 100%. The baseline for no parameters is 4, and the description correctly does not attempt to describe non-existent parameters.

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 the specific verb 'List' and names the exact resources ('external default bridge and all managed Ryubing processes'), making the purpose unmistakable and distinguishing it from sibling tools like get_status or create_session.

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?

No guidance is provided on when to use this tool rather than alternatives such as ryubing_get_status or ryubing_stop_session. The description states only what the tool does, not the context or conditions for its use.

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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