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/willvelida/code-minions/creating-devcontainersnpx skills add willvelida/code-minions --skill creating-devcontainersgit clone --depth 1 https://github.com/willvelida/code-minionsWhat 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 | $0.00071 | $0.00374 |
| Opus 5 | $0.00036 | $0.00187 |
| Sonnet 5 | $0.00014 | $0.00075 |
| Haiku 4.5 | $0.00007 | $0.00037 |
Grade A, and why
creating-devcontainers 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.
What it actually says
DevContainer Skill
Overview
This skill provides capabilities for creating and reviewing DevContainer configurations that comply with organisational standards.
Capabilities
| Capability | Action | Description |
|---|---|---|
| Create | actions/create.md |
Generate a standards-compliant DevContainer configuration |
| Review | actions/review.md |
Analyse an existing DevContainer for compliance and improvements |
Standards
This skill bundles the following standards in standards/:
| Standard | File | Description |
|---|---|---|
| Core | core.md |
Base image, lifecycle hooks, container configuration, file structure |
| Extensions | extensions.md |
VS Code extension requirements and guidelines |
| Features | features.md |
DevContainer features configuration and versioning |
| Security | security.md |
Security requirements and risk guidance |
| Checklist | checklist.md |
Consolidated compliance checklist |
| Template | template.json |
Base configuration template |
Usage
- Load this skill manifest
- Identify the required capability (create or review)
- Load the bundled standards from
standards/ - Ask the user what language(s) and tooling the DevContainer needs to accommodate
- Execute the action following
actions/<capability>.md
What ships with it
8 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 2d ago First seen · 42 lines · 71 tokens per session scan A 3f98cdca10b5
creating-devcontainers is a skill published in the GitHub repository willvelida/code-minions (23 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 71 tokens to every session and 374 once invoked, about $0.0004 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.
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