stub

stub is a skill for Claude Code, Codex from jrswab/axe. It costs 0 tokens per session (36 once invoked), scanned A, original, Apache-2.0.

A test fixture for integration tests. It responds with a fixed confirmation that the stub skill is active.

In plain words
What is it for?
Use it when testing skill integration and activation handling.
Why use it?
It gives tests a predictable skill response to check against.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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/jrswab/axe/stub
Any agent
npx skills add jrswab/axe --skill stub
Clone the repo
git clone --depth 1 https://github.com/jrswab/axe

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for stub

README.md
[![agentmods](https://agentmods.dev/badge/skills/jrswab/axe/stub.svg)](https://agentmods.dev/skills/jrswab/axe/stub)
Your own site
<a href="https://agentmods.dev/skills/jrswab/axe/stub"><img src="https://agentmods.dev/badge/skills/jrswab/axe/stub.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 36 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 5.1 $0.00000 $0.00036
Opus 5 $0.00000 $0.00018
Sonnet 5 $0.00000 $0.00007
Haiku 4.5 $0.00000 $0.00004

Measured 6d ago against content hash f7e559bc6b88, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

stub 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 6d 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.

cmd/testdata/skills/stub/SKILL.md · 14 lines

What it actually says

Stub Skill

Purpose

Test fixture skill for integration tests.

Instructions

  1. Respond with "stub skill active".

Output Format

Plain text, single line.

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. 6d ago First seen · 14 lines · 0 tokens per session scan A f7e559bc6b88

Subscribe to this mod's changes

stub is a skill published in the GitHub repository jrswab/axe (838 stars, last pushed 2mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 36 tokens. 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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