agentmods.dev

create-stack

A guide for adding unit tests to an AirStack ROS 2 package. ROS 2 is a framework for building robot software, and unit tests check small pieces of code in isolation.

In plain words
What is it for?
Use it to add Python or C++ unit tests, register them with the AirStack test setup, and extend testing to simulated robot components.
Why use it?
It makes new tests visible to the project's test commands and keeps test files in the expected package location.

Skill for Claude CodeCodex

86 2d ago A scan 72 tokens BSD-3-Clause-Clear
View the source file castacks/AirStack
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/castacks/airstack/create-stack
Any agent
npx skills add castacks/AirStack --skill create-stack
Clone the repo
git clone --depth 1 https://github.com/castacks/AirStack

Made for: Claude Code, Codex.

Per session 72 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,090 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00072 $0.02090
Opus 5 $0.00036 $0.01045
Sonnet 5 $0.00014 $0.00418
Haiku 4.5 $0.00007 $0.00209

Measured 2d ago against content hash 283885bde770, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

create-stack 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.

.agents/skills/create-stack/SKILL.md · 205 lines

The source is not reproduced here

Licensed BSD-3-Clause-Clear

The repository is licensed BSD-3-Clause-Clear, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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 · 205 lines · 72 tokens per session scan A 283885bde770

Subscribe to this mod's changes

create-stack is a skill published in the GitHub repository castacks/AirStack (86 stars, last pushed 2d ago), licensed BSD-3-Clause-Clear. It adds 72 tokens to every session and 2,090 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.

LanguagesTestingWriting and docsaiautonomyrobotics
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