docker-clean

A Docker cleanup command for finding and removing unused containers, images, volumes, and networks. Docker is software that runs applications in isolated containers.

In plain words
What is it for?
For cleaning all unused Docker resources or targeting only containers, images, volumes, networks, or dangling images.
Why use it?
Unused Docker resources can consume disk space and make the local environment harder to understand; this command previews what will be removed before cleaning.

Command

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 commands/alphaaiservice/cortex/docker-clean
Clone the repo
git clone --depth 1 https://github.com/alphaaiservice/cortex
Per session 40 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,177 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 $0.00040 $0.01177
Opus 5 $0.00020 $0.00589
Sonnet 5 $0.00008 $0.00235
Haiku 4.5 $0.00004 $0.00118

Measured yesterday against content hash fcf4fd7574d4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

docker-clean 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 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.

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.

commands/docker-clean.md · 174 lines

How it starts

The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Docker Cleanup Automation

Clean up target: $ARGUMENTS (default: --all)

Step 1: Docker Environment Survey

First, assess the current Docker state:

echo "=== Docker Disk Usage ==="
docker system df

echo ""
echo "=== Running Containers ==="
docker ps --format "table {{.ID}}\t{{.Image}}\t{{.Status}}\t{{.Names}}"

echo ""
echo "=== All Containers (including stopped) ==="
docker ps -a --format "table {{.ID}}\t{{.Image}}\t{{.Status}}\t{{.Names}}"

echo ""
echo "=== Images ==="
docker images --format "table {{.Repository}}\t{{.Tag}}\t{{.Size}}\t{{.CreatedSince}}"

echo ""
echo "=== Dangling Images ==="
docker images -f "dangling=true" --format "table {{.ID}}\t{{.Size}}\t{{.CreatedSince}}"

echo ""
echo "=== Volumes ==="
docker volume ls

echo ""
echo "=== Networks (custom only) ==="
docker network ls --filter type=custom

Step 2: Generate Cleanup Report

Before cleaning, show what WILL be removed:

╔═══════════════════════════════════════════════╗
║          DOCKER CLEANUP PREVIEW               ║
╠═══════════════════════════════════════════════╣
║ Stopped Containers:   [count] ([size])        ║
║ Dangling Images:      [count] ([size])        ║
║ Unused Images:        [count] ([size])        ║
║ Unused Volumes:       [count] ([size])        ║
║ Unused Networks:      [count]                 ║
╠═══════════════════════════════════════════════╣
║ Total Reclaimable:    [total size]            ║
╚═══════════════════════════════════════════════╝

ASK FOR CONFIRMATION before proceeding with cleanup.

Step 3: Execute Cleanup

Based on the $ARGUMENTS flag:

--all (default) — Full cleanup

echo "=== Removing stopped containers ==="
docker container prune -f

echo ""
echo "=== Removing dangling images ==="
docker image prune -f

echo ""
echo "=== Removing unused images (not referenced by any container) ==="
docker image prune -a -f

echo ""
echo "=== Removing unused volumes ==="
docker volume prune -f

echo ""
echo "=== Removing unused networks ==="
docker network prune -f

echo ""
echo "=== Final disk usage ==="
docker system df

Read the full file on GitHub · 174 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 · 174 lines · 40 tokens per session scan A fcf4fd7574d4

Subscribe to this mod's changes

docker-clean is a command published in the GitHub repository alphaaiservice/cortex (1 stars, last pushed 25d ago), licensed MIT. It adds 40 tokens to every session and 1,177 once invoked, about $0.0002 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.