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ssh-bridge-mcp

ssh-bridge-mcp

by CrimsonCosmos
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Hybrid

ssh_list_sessions

Retrieve current SSH session details including host, user, and port to monitor active connections and manage remote access.

Instructions

List currently open SSH sessions (host/user/port), by session_id.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "ssh_list_sessions"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4/5.0
Behavior3/5

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

With no annotations, the description carries the behavioral transparency burden. It discloses the output fields (host/user/port) and grouping by session_id, which is useful. However, it does not state that the operation is read-only, what happens if there are no sessions, or what the exact return format looks like.

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, compact sentence that front-loads the core action and resource, then adds the relevant output details. Every word contributes value with no redundancy.

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, parameterless listing tool, the description covers the key information an agent needs: what is listed, the fields included, and the identifier. Minor omissions such as return format or empty-list behavior are not critical given the tool's simplicity.

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, so the baseline for this dimension is 4. The description appropriately focuses on output semantics rather than parameters, and there are no parameter ambiguities to clarify.

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 a specific verb 'List' with the resource 'currently open SSH sessions' and specifies the fields (host/user/port) and keying by session_id. It clearly differentiates from sibling tools like ssh_connect and ssh_exec, which perform different actions.

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 implies the usage context: when an agent needs an inventory of open SSH sessions. However, it does not explicitly state when to use this tool versus alternatives or provide exclusions, leaving the guidance implicit rather than direct.

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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