A guide and command reference for connecting to remote computers with SSH and moving files with SCP or rsync. It also covers SSH keys, tunnels, and jump hosts.

Use it to connect to servers, run remote commands, create and manage keys, forward ports, transfer files, synchronize directories, and configure multi-hop connections.

It provides the commands and setup guidance needed to work on servers securely without having to remember the details of each SSH operation.

ssh-remote — Skill by bug-ops

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/bug-ops/zeph/ssh-remote

Any agent

npx skills add bug-ops/zeph --skill ssh-remote

Clone the repo

git clone --depth 1 https://github.com/bug-ops/zeph

Made for: Claude Code, Codex.

Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,185 The whole file, excluding the scripts and references it only reads on demand.

Security scan D 3 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.

Model	Per session	Once invoked
Fable 5	$0.00072	$0.03185
Opus 5	$0.00036	$0.01592
Sonnet 5	$0.00014	$0.00637
Haiku 4.5	$0.00007	$0.00318

Measured 2d ago against content hash fcc1a89c3536, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade D, and why

ssh-remote scanned grade D with 3 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 2d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

ssh -t user@host 'sudo systemctl restart nginx'

Reaches for credential fileshighPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

ssh-keygen -p -f ~/.ssh/id_ed25519

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

# Use with curl

.zeph/skills/ssh-remote/SKILL.md · 462 lines

How it starts

The opening of the file, as written. The whole thing — 462 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SSH, SCP, and Rsync

Quick Reference

Task	Command
Connect	`ssh user@host`
Connect on port	`ssh -p 2222 user@host`
Run remote command	`ssh user@host 'command'`
Generate key	`ssh-keygen -t ed25519`
Copy key to server	`ssh-copy-id user@host`
Copy file to remote	`scp file.txt user@host:/path/`
Copy file from remote	`scp user@host:/path/file.txt .`
Sync directory	`rsync -avz dir/ user@host:/path/`
Local tunnel	`ssh -L 8080:localhost:80 user@host`

SSH Key Management

Generate Keys

# Ed25519 (recommended — fast, secure, short keys)
ssh-keygen -t ed25519 -C "user@hostname"

# Ed25519 with custom filename
ssh-keygen -t ed25519 -f ~/.ssh/id_project -C "user@hostname"

# RSA 4096-bit (for legacy systems that don't support Ed25519)
ssh-keygen -t rsa -b 4096 -C "user@hostname"

# Generate without passphrase (for automation only)
ssh-keygen -t ed25519 -f ~/.ssh/id_automation -N ""

# Change passphrase on existing key
ssh-keygen -p -f ~/.ssh/id_ed25519

# View key fingerprint
ssh-keygen -lf ~/.ssh/id_ed25519.pub

# View key in different format
ssh-keygen -lf ~/.ssh/id_ed25519.pub -E md5

Deploy Public Key

# Copy public key to remote server (recommended)
ssh-copy-id user@host

# Copy specific key
ssh-copy-id -i ~/.ssh/id_project.pub user@host

# Copy to non-standard port
ssh-copy-id -p 2222 user@host

# Manual method (when ssh-copy-id is unavailable)
cat ~/.ssh/id_ed25519.pub | ssh user@host 'mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys'

SSH Agent

# Start agent (if not running)
eval "$(ssh-agent -s)"

# Add key to agent
ssh-add ~/.ssh/id_ed25519

# Add key with timeout (auto-remove after 1 hour)
ssh-add -t 3600 ~/.ssh/id_ed25519

# List keys in agent
ssh-add -l

# Remove specific key
ssh-add -d ~/.ssh/id_ed25519

# Remove all keys
ssh-add -D

# macOS: add key to Keychain
ssh-add --apple-use-keychain ~/.ssh/id_ed25519

Read the full file on GitHub · 462 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.

2d ago First seen · 462 lines · 72 tokens per session scan D fcc1a89c3536

Subscribe to this mod's changes

ssh-remote is a skill published in the GitHub repository bug-ops/zeph (57 stars, last pushed 7d ago), licensed MIT. It adds 72 tokens to every session and 3,185 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it D with 3 findings (asks for root, reaches for credential files, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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