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cygnussystems

cygnus-ssh-mcp

Official

ssh_archive_create

Compress a remote directory into a tar or tar.gz archive via SSH. Specify source, destination, format, and optional sudo.

Instructions

Create a compressed archive from a directory.

Returns: Dictionary with archive information

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
source_pathYesDirectory to archive
archive_pathYesPath for the created archive
formatNoArchive formattar.gz
use_sudoNoUse sudo for the operation

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

No annotations provided, so description carries full burden. It only states basic action; does not explain behavior on existing paths, permissions needed, or effects of flags like 'use_sudo'.

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

Conciseness3/5

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

Very short but lacks necessary detail. One sentence plus return note is concise but omits behavioral and usage context.

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?

Given 4 parameters and output schema present, description covers basic action but lacks context on error handling, side effects, and usage scenarios. Adequate but not complete.

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 is 100%, so schema already explains all parameters. Description adds no extra meaning beyond what's in the schema, so baseline 3 is appropriate.

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 'Create a compressed archive from a directory' with specific verb and resource. It distinguishes from sibling 'ssh_archive_extract' which does the opposite.

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 on when to use this tool vs alternatives, no prerequisites, no scenarios where it should or should not be used. Minimal context for decision-making.

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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