A controlled way to run a command on another computer through an approved remote execution tool. It accepts the destination and command separately instead of building a local SSH command.

Use it to inspect files, run commands, or check services on a named server, host, or IP address.

It avoids using the wrong remote host or exposing sensitive SSH material, and it stops when the remote operation fails. It is intended for explicitly requested remote work.

holix-ssh — Skill for Claude Code by javded-itres/Holix

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add javded-itres/Holix --skill holix-ssh

Clone the repo

git clone --depth 1 https://github.com/javded-itres/Holix

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/javded-itres/holix/holix-ssh/github.svg)](https://agentmods.dev/skills/javded-itres/holix/holix-ssh)

Your own site

<a href="https://agentmods.dev/skills/javded-itres/holix/holix-ssh"><img src="https://agentmods.dev/badge/skills/javded-itres/holix/holix-ssh/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/javded-itres/holix/holix-ssh"><img src="https://agentmods.dev/badge/skills/javded-itres/holix/holix-ssh.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 444 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00048	$0.00444
Opus 5.5	$0.00019	$0.00178
Sonnet 5.5	$0.00010	$0.00089
Haiku 4.5	$0.00005	$0.00044

Measured 5d ago against content hash f3b5bb20808e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

holix-ssh scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

core/skills/bundled/holix-ssh/SKILL.md · 48 lines

What it actually says

When to use

The user wants a command, file read, or service check on another machine. Load this skill with skill_view before the first remote call of the task.

Procedure

Call ssh_exec. host and command are separate arguments.
host is an alias from the SSH config list in the system prompt, or user@host when the user gave an address and there is no alias. Do not invent a user when that list already names one.
Put a script in stdin. Do not build a local heredoc and do not wrap the command in quotes for the local shell.
Timeout defaults to 120 seconds. Raise it up to 600 only when the remote command needs it.
If the result is an error, show stderr to the user and stop. One failure is enough.

Do not

Do not call run_terminal_command with ssh, scp, or sftp.
Do not allocate a TTY, run ssh -v, or run ssh-add.
Do not append & or poll a background SSH session.
Do not put SSH options in host (-o, ProxyCommand, an empty host).
Do not print keys, tokens, or the contents of .ssh.

Examples

ssh_exec(host="ai-server-local", command="uname -a")
ssh_exec(host="[email protected]", command="python3 -", stdin="<script>")

Verification

The turn used ssh_exec, not a local ssh string.
A failure was reported once, without a second connection attempt.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

5d ago First seen · 48 lines · 48 tokens per session scan A f3b5bb20808e

Subscribe to this mod's changes

holix-ssh is a skill published in the GitHub repository javded-itres/Holix (17 stars, last pushed today), licensed MIT. It adds 48 tokens to every session and 444 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-12.

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