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.
npx agentmods add skills/coleam00/archon/docker-extendnpx skills add coleam00/Archon --skill docker-extendgit clone --depth 1 https://github.com/coleam00/ArchonWrote 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/skills/coleam00/archon/docker-extend)<a href="https://agentmods.dev/skills/coleam00/archon/docker-extend"><img src="https://agentmods.dev/badge/skills/coleam00/archon/docker-extend.svg" alt="Measured on agentmods" 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 | $0.00118 | $0.01066 |
| Opus 5 | $0.00059 | $0.00533 |
| Sonnet 5 | $0.00024 | $0.00213 |
| Haiku 4.5 | $0.00012 | $0.00107 |
Grade C, and why
docker-extend scanned grade C with 1 finding 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
&& rm -rf /var/lib/apt/lists/* How it starts
The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Docker Extend
Sets up personal Docker tool customization using the project's gitignored override pattern.
Your Dockerfile.user and docker-compose.override.yml are yours — never committed to git.
Step 1: Detect Context
Determine if the user is in dev (source build) or deploy (GHCR) mode:
!if [ -f docker-compose.yml ] && grep -q 'build: \.' docker-compose.yml 2>/dev/null; then echo "DEV_MODE: Building from source (root docker-compose.yml)"; elif [ -f deploy/docker-compose.yml ]; then echo "DEPLOY_MODE: Using GHCR image (deploy/docker-compose.yml)"; else echo "UNKNOWN_MODE: No docker-compose.yml found in root or deploy/"; fi
Decision:
DEV_MODE→ work withDockerfile.user+docker-compose.override.yml(repo root)DEPLOY_MODE→ work withdeploy/Dockerfile.user+deploy/docker-compose.override.ymlUNKNOWN_MODE→ ask the user which directory theirdocker-compose.ymllives in before proceeding
Step 2: Check Current State
DEV_MODE — check root files:
!echo "=== Dockerfile.user ===" && (cat Dockerfile.user 2>/dev/null || echo "(not found — will create from example)") && echo "" && echo "=== docker-compose.override.yml ===" && (cat docker-compose.override.yml 2>/dev/null || echo "(not found — will create from example)")
DEPLOY_MODE — check deploy/ files:
!echo "=== deploy/Dockerfile.user ===" && (cat deploy/Dockerfile.user 2>/dev/null || echo "(not found — will create from example)") && echo "" && echo "=== deploy/docker-compose.override.yml ===" && (cat deploy/docker-compose.override.yml 2>/dev/null || echo "(not found — will create from example)")
If both files already exist: Skip to Step 4 (add tools). If files are missing: Proceed to Step 3 (copy from examples). If example files are missing too: Tell the user the project hasn't added the example files yet and to check with the maintainers or the docs.
Step 3: Copy Example Files
Run only the copy commands for whichever files are missing. Do NOT overwrite existing files.
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.
- yesterday First seen · 108 lines · 118 tokens per session scan C a3836506c0d4
docker-extend is a skill published in the GitHub repository coleam00/Archon (23,366 stars, last pushed yesterday), licensed MIT. It adds 118 tokens to every session and 1,066 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-02.
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