ssh-docker-debug

A read-only skill for investigating Docker containers on a remote virtual machine through SSH. Docker is software that runs applications in isolated containers, and SSH is a secure remote terminal connection.

In plain words
What is it for?
Finding running containers, viewing container logs, inspecting container metadata, and checking explicitly requested service connectivity.
Why use it?
It helps inspect deployed services and read their logs without changing the remote machine or containers.

Skill for Claude CodeCodex

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/kolodkin/devpowers/ssh-docker-debug
Any agent
npx skills add kolodkin/devpowers --skill ssh-docker-debug
Clone the repo
git clone --depth 1 https://github.com/kolodkin/devpowers

Made for: Claude Code, Codex.

Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,007 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 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 $0.00075 $0.01007
Opus 5 $0.00037 $0.00504
Sonnet 5 $0.00015 $0.00201
Haiku 4.5 $0.00007 $0.00101

Measured yesterday against content hash 0e53fcb20c0f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

ssh-docker-debug scanned grade B with 2 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 yesterday.

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.

- If `docker ps` requires sudo on the target VM, prefix the remote command with `sudo` only after confirming with the user; some hosts add the SSH user to the `docker` group and don't need it.

Makes network callslowCapability

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

- `curl` for connectivity checks against services the user explicitly asks about
skills/ssh-docker-debug/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.

SSH Docker Debugging

Discover and tail logs for Docker containers on a remote VM over SSH.

Arguments

/ssh-docker-debug <ssh-host> [container-name ...]
  • ssh-host (required) — SSH host name as configured in ~/.ssh/config
  • container-name (optional, repeatable) — One or more container names or IDs to tail. If omitted, run the discovery phase and ask the user which containers to tail.

IMPORTANT

This skill is strictly read-only on the remote VM. NEVER run docker exec, docker build, docker compose up/down, docker run, docker rm, docker stop, docker restart, or any command that modifies container or host state. Only the following are allowed:

  • docker ps (and variants with --format, -a, --filter)
  • docker logs (with --tail, --since, -f)
  • docker inspect (read-only metadata)
  • ssh -G for host resolution
  • curl for connectivity checks against services the user explicitly asks about

If the user asks for anything that would mutate state, refuse and explain that this skill is read-only.

Step 1: Resolve the VM IP (optional, for curl checks)

ssh -G <ssh-host> | grep "^hostname "

Use the resolved IP for any curl commands later in the session.

Step 2: Discovery Phase

Run when no container names were supplied, or when the user explicitly asks "what's running" / "list containers" / similar.

List running containers with a clean, parseable format:

ssh <ssh-host> "docker ps --format 'table {{.Names}}\t{{.Image}}\t{{.Status}}\t{{.Ports}}'"

To include stopped containers as well, add -a:

ssh <ssh-host> "docker ps -a --format 'table {{.Names}}\t{{.Image}}\t{{.Status}}'"

Present the list to the user and ask which containers they'd like to tail. If there are obvious candidates based on the user's stated goal (e.g. they mentioned a service name that matches a container), suggest those by name.

Step 3: Tail Logs

For each container the user selected (or supplied as arguments), start a background log stream. Launch all streams in parallel:

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. yesterday First seen · 99 lines · 75 tokens per session scan B 0e53fcb20c0f

Subscribe to this mod's changes

ssh-docker-debug is a skill published in the GitHub repository kolodkin/devpowers (2 stars, last pushed 22d ago), licensed MIT. It adds 75 tokens to every session and 1,007 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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