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hypnosis

SSH MCP Server

by hypnosis
OverviewSchemaRelated ServersScoreDiscussions
TypeScript
Remote

ssh_download

DestructiveIdempotent

Copy files or directories from a remote server to your local machine, with sha256 checksum verification on both sides to ensure integrity.

Instructions

Copies a file or directory from a server to this machine, checked by sha256 on both sides. To read a text file rather than keep it, ssh_file_read skips the disk.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sudoNoFor /root and the like. A root copy stages in /tmp, is fetched and removed — the machine needs room. Default: false
verifyNosha256 on both sides, per file. "unavailable" = no sha256 on the machine = delivered, not broken. "mismatched" fails the call and replaces nothing. Default: true
profileYesMachine name.
timeoutNoMilliseconds. No ceiling by default — a transfer runs as long as it takes.
recursiveNoOnly to force it — a directory is recognised on its own.
local_pathYesWhere it lands on this machine.
remote_pathYesWhat to fetch from the server.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
filesNo
legendNoWhat the words in this answer mean. A key names the field before the value — "state=limited", "jobs[].state=lost" — and only the values this answer actually used are listed.

Schema Changelog

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

  1. Changed4 schema fields changedv2.3.3
    • changedInput schema / properties / verify / description
      Previous value: -"sha256 on both sides, per file. \"unavailable\" = no sha256 on the machine = delivered, not broken. Default: true"New value: +"sha256 on both sides, per file. \"unavailable\" = no sha256 on the machine = delivered, not broken. \"mismatched\" fails the call and replaces nothing. Default: true"
    • addedOutput schema / properties / files / items / properties / verified / description
      Added value: +"How the sha256 check ended, not whether the data landed — written says that. verified — sha256 was compared after the write and matched; mismatched — sha256 was compared and differed: nothing was replaced, and the path still holds what it held before; unavailable — the check had nothing to work with, and reason says what was missing; skipped — no comparison ran: none was asked for, or nothing landed to compare."
    • changedOutput schema / properties / files / items / properties / verified / enum
      Previous value: -[
-  "verified",
-  "unavailable",
-  "skipped"
-]New value: +[
+  "verified",
+  "mismatched",
+  "unavailable",
+  "skipped"
+]
    • addedOutput schema / properties / files / items / properties / written / description
      Added value: +"Whether the data reached the path. Permissions and owner are a separate matter: one that did not apply is named in reason, and written stays true."
  2. Changed1 schema field changedv2.3.0
    • addedOutput schema / properties / legend / description
      Added value: +"What the words in this answer mean. A key names the field before the value — \"state=limited\", \"jobs[].state=lost\" — and only the values this answer actually used are listed."
  3. First observedv1.0.0

TDQS

A4.5/5.0
Behavior4/5

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

Annotations already provide idempotentHint and destructiveHint, and the description adds meaningful behavioral detail: 'checked by sha256 on both sides.' This goes beyond the annotations by explaining the verification mechanism. It does not explicitly state that an existing local_path may be overwritten, but the destructiveHint annotation covers the general risk, and the schema's verify parameter adds mismatch semantics.

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 two concise sentences with no redundant wording. The core action and verification detail are front-loaded, and the sibling alternative follows in a clearly conditional form. Every sentence contributes useful information.

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

Completeness5/5

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

Given the rich input schema, output schema, and annotations, the description is complete enough for an agent to know what the tool does, when to use it, and when not to. It covers direction, verification, and the key sibling alternative, with no missing information necessary for correct invocation.

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 the schema already documents all seven parameters in detail. The description adds no parameter-level meaning beyond the schema; it only restates the overall transfer and verification behavior. A baseline of 3 is appropriate since the schema carries the semantic weight.

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 states a specific action and resource: 'Copies a file or directory from a server to this machine.' This clearly identifies the tool's direction and purpose. It also differentiates from ssh_file_read by noting the alternative is for reading text without keeping a copy, and the title 'Download from a server' reinforces the intent.

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

Usage Guidelines5/5

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

The description explicitly provides an alternative and a usage condition: 'To read a text file rather than keep it, ssh_file_read skips the disk.' This tells an agent when to prefer a sibling tool instead. The copy direction is unambiguous, so there is no confusion with ssh_upload.

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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