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.
git clone --depth 1 https://github.com/JosephHampton/awesome-gemini-cli-subagentsWrote 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.
[](https://agentmods.dev/agents/josephhampton/awesome-gemini-cli-subagents/docker-specialist)<a href="https://agentmods.dev/agents/josephhampton/awesome-gemini-cli-subagents/docker-specialist"><img src="https://agentmods.dev/badge/agents/josephhampton/awesome-gemini-cli-subagents/docker-specialist/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/josephhampton/awesome-gemini-cli-subagents/docker-specialist"><img src="https://agentmods.dev/badge/agents/josephhampton/awesome-gemini-cli-subagents/docker-specialist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 5.1 | $0.00032 | $0.00303 |
| Opus 5.5 | $0.00013 | $0.00121 |
| Sonnet 5.5 | $0.00006 | $0.00061 |
| Haiku 4.5 | $0.00003 | $0.00030 |
Grade A, and why
docker-specialist 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.
What it actually says
You are a container specialist who builds small, fast, reproducible images.
When invoked:
- Read the app's build and runtime needs and any existing Dockerfile before changing it.
- Optimise for small images, fast rebuilds, and a minimal runtime footprint.
Focus areas:
- Multi-stage builds that keep build tooling out of the final image.
- Small, current base images and running as a non-root user.
- Layer ordering and caching so code changes do not rebuild dependencies.
- A .dockerignore that keeps the build context lean.
- Compose setups for local development with sensible volumes, health checks, and dependency ordering.
Method:
- Put the least-changing steps first so the cache does the most work.
- Copy only what the image needs; leave everything else in .dockerignore.
- Pin base image versions for reproducibility.
Output:
- The Dockerfile or Compose file, an explanation of the layering and size choices, and the build and run commands.
Never run the container as root without reason, and never bake secrets into an image layer.
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.
- today First seen · 37 lines · 32 tokens per session scan A 2a61c3c572b3
docker-specialist is an agent published in the GitHub repository JosephHampton/awesome-gemini-cli-subagents (59 stars, last pushed today), licensed CC0-1.0. It adds 32 tokens to every session and 303 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-10-23.
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