docker

A set of Docker workflow helpers. Docker runs an application and its dependencies in isolated containers so the setup is consistent across machines.

In plain words
What is it for?
Use it to list containers, view logs, build images, start or stop a Docker Compose project, restart a service, open a service shell, or prune unused Docker data.
Why use it?
Remembering the right commands for containers and Compose projects takes time, and interactive commands may not fit automated agent work. These helpers provide fixed, non-interactive operations.

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/brain-bootstrap/claude-code-brain-bootstrap/docker
Any agent
npx skills add brain-bootstrap/claude-code-brain-bootstrap --skill docker
Clone the repo
git clone --depth 1 https://github.com/brain-bootstrap/claude-code-brain-bootstrap

Made for: Claude Code, Codex.

Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 462 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 $0.00026 $0.00462
Opus 5 $0.00013 $0.00231
Sonnet 5 $0.00005 $0.00092
Haiku 4.5 $0.00003 $0.00046

Measured 2d ago against content hash de654e81c3bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

docker 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 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.

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.

.claude/skills/docker/SKILL.md · 46 lines

What it actually says

Docker Skill

Run Docker operations in non-interactive mode.

Usage

/docker ps                    # List running containers
/docker logs service-name     # Tail logs for a service
/docker build                 # Build the project image
/docker up                    # docker compose up -d
/docker down                  # docker compose down
/docker restart service       # Restart a specific service
/docker prune                 # docker system prune -f (no named volumes)
/docker shell service         # Open a shell in a running container

Instructions

Determine action from $ARGUMENTS:

Argument Action
ps or (empty) docker ps --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}" | cat
logs <service> docker logs <service> --tail 50 | cat
build Read claude/build.md for build command
up docker compose up -d 2>&1 | tail -20
down docker compose down 2>&1
restart <service> docker compose restart <service> 2>&1
prune docker system prune -f 2>&1 (confirm first)
shell <service> docker exec <container-id> /bin/sh (non-interactive: run a command)
images docker images | cat
stats docker stats --no-stream | cat

⚠️ Rules:

  • NEVER use docker exec -it (interactive — hangs terminal)
  • For shell: run a specific command instead: docker exec <id> /bin/sh -c "ls /app"
  • For prune: warn about consequences before running
  • For logs: always --tail N to limit output
  • Read claude/build.md for project-specific Docker compose file paths and service names
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. 2d ago First seen · 46 lines · 26 tokens per session scan A de654e81c3bc

Subscribe to this mod's changes

docker is a skill published in the GitHub repository brain-bootstrap/claude-code-brain-bootstrap (11 stars, last pushed 4mo ago), licensed MIT. It adds 26 tokens to every session and 462 once invoked, about $0.0001 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 2026-08-30.

Related

Other skills, from other repositories

implement

TRIGGER when: user asks to implement, fix, build, or work on something — whether from a docs/wip plan OR a standalone task (bug fix, GitHub issue, one-off change). Examples: "work on task 1", "fix this bug", "implement feature X from the issue". Provides structured execution with profile detection, dependency…

serpro69/claude-toolbox · 79 tokens

review-spec

Use after implementing tasks or mid-feature to verify code matches design docs and ensure they are in sync. Detects spec deviations, missing implementations, doc inconsistencies, and outdated docs in design and implementation documentation.

serpro69/claude-toolbox · 44 tokens

chain-of-verification

Apply Chain-of-Verification (CoVe) prompting to improve response accuracy through self-verification. Use when complex questions require fact-checking, technical accuracy, or multi-step reasoning.

serpro69/claude-toolbox · 41 tokens

review-design

Review design, implementation, and task documents produced by design. Evaluates document quality, internal consistency, and technical soundness. Use after design completes and before starting implement.

serpro69/claude-toolbox · 37 tokens

review-code

Code review of current git changes with an expert senior-engineer lens. Detects SOLID violations, security risks, and proposes actionable improvements. Use when performing code reviews.

serpro69/claude-toolbox · 37 tokens

dependency-handling

TRIGGER when: adding or upgrading any dependency — library, SDK, framework, API, IaC API version (K8s/Terraform/Helm), CRD, or container image. Use BEFORE writing the call. Forces context7/capy lookup instead of guessing.

serpro69/claude-toolbox · 60 tokens