2native-ssh-mcp-agent

2native-ssh-mcp-agent is a skill for Claude Code, Codex from daidaiJ/2native-ssh-mcp. It costs 63 tokens per session (1,542 once invoked), scanned A, original, ISC.

A safety guide for AI agents that use 2native-ssh-mcp to connect to remote servers and run commands.

In plain words
What is it for?
It helps choose the right server connection, use low-privilege accounts, limit large outputs, manage sessions, and handle rejected commands or host-key errors safely.
Why use it?
It helps prevent unsafe production changes, excessive command output, credential exposure, and attempts to bypass server security checks.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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.

agentmods
npx agentmods add skills/daidaij/2native-ssh-mcp/2native-ssh-mcp-agent
Any agent
npx skills add daidaiJ/2native-ssh-mcp --skill 2native-ssh-mcp-agent
Clone the repo
git clone --depth 1 https://github.com/daidaiJ/2native-ssh-mcp

Made for: Claude Code, Codex.

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.

agentmods badge for 2native-ssh-mcp-agent

README.md
[![agentmods](https://agentmods.dev/badge/skills/daidaij/2native-ssh-mcp/2native-ssh-mcp-agent.svg)](https://agentmods.dev/skills/daidaij/2native-ssh-mcp/2native-ssh-mcp-agent)
Your own site
<a href="https://agentmods.dev/skills/daidaij/2native-ssh-mcp/2native-ssh-mcp-agent"><img src="https://agentmods.dev/badge/skills/daidaij/2native-ssh-mcp/2native-ssh-mcp-agent.svg" alt="Measured on agentmods" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,542 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00063 $0.01542
Opus 5 $0.00032 $0.00771
Sonnet 5 $0.00013 $0.00308
Haiku 4.5 $0.00006 $0.00154

Measured today against content hash 00cf9db19bb4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

2native-ssh-mcp-agent 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 today.

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.

skills/2native-ssh-mcp-agent/SKILL.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

2native-ssh-mcp-agent

Defensive playbook for agents using 2native-ssh-mcp. Read this before executing on production hosts.

Golden rules

  1. Call list-servers first — read metadata, aliases, notes; pick connectionName or plan a sessionName.
  2. Never use root — use a dedicated low-privilege account.
  3. Prefer narrow commands — scope with head, tail, grep, wc, paths; avoid blind cat on large files.
  4. Respect whitelist/blacklist — if a command is rejected, do not bypass; ask the operator to widen policy.
  5. Secrets — redaction is off by default ("redactSecrets": true enables it per connection); regardless, avoid printing credentials.
  6. Host key rejection — if a connection fails with a host key mismatch (server reimaged / key rotated), do not bypass; report it. Fix is operator-side: remove the stale line from known_hosts (or set "hostKeyCheck": "none" for dynamic-IP hosts).

Output & tokens

Built-in (automatic)

2native-ssh-mcp layers large output automatically:

  • Directories transfer recursively via file-transfer (per-file atomic upload, files/failed in the result; single files get a sha256 check).
  • ≥ 8KB (outputSpillThreshold, -1 disables): the full output is written to a local file (default .ssh-mcp-out/, outputSpillDir configurable, newest 32 kept). The result carries only a short notice, the absolute path, byte/line counts and a ~12-line preview. Grep/Read that local file — never re-run the command or cat it remotely.
  • 4–8KB: light compression — head + tail lines, middle replaced with ... [N lines omitted] ..., duplicate/blank lines collapsed.
  • Disable compression per connection: "outputCompressLight": false; tune threshold: "outputCompressThreshold": 8192.

ANSI escape sequences (colors, progress bars) are stripped from all output by default; disable per connection: "stripAnsi": false.

Agent-side habits (before running)

Bad Better
cat /var/log/app.log tail -n 100 /var/log/app.log
find / -name '*.log' find /var/log -maxdepth 2 -name '*.log' 2>/dev/null | head -50
docker ps -a (huge) docker ps --format 'table {{.Names}}\t{{.Status}}' | head -30
kubectl get pods -A add | head or -l app=...
ls -laR / ls -la /specific/path

Read the full file on GitHub · 99 lines

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.

  1. today Changed · -3 lines 00cf9db19bb4
  2. 5d ago First seen · 102 lines · 63 tokens per session scan A 9acf30c069b9

Subscribe to this mod's changes

2native-ssh-mcp-agent is a skill published in the GitHub repository daidaiJ/2native-ssh-mcp (0 stars, last pushed yesterday), licensed ISC. It adds 63 tokens to every session and 1,542 once invoked, about $0.0003 per session on Opus 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 2026-08-31.

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