test-anti-patterns

test-anti-patterns is a skill for Claude Code from F-U-S-E-E/FuseDevelopmentGroup. It costs 198 tokens per session (2,371 once invoked), scanned A, original, AGPL-3.0.

A focused review guide for .NET test code that looks for patterns which reduce reliability or make failures hard to understand. It covers issues such as flaky tests, unnecessary coupling, duplication, and values that are hidden in the code.

In plain words
What is it for?
Use it to audit test quality, investigate flaky tests, find duplication, or review tests that may not verify what they claim.
Why use it?
It helps distinguish tests that genuinely check behavior from tests that pass without providing useful evidence.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to audit test quality, investigate flaky tests, find duplication, or…

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/f-u-s-e-e/fusedevelopmentgroup/test-anti-patterns
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.

Any agent
npx skills add F-U-S-E-E/FuseDevelopmentGroup --skill test-anti-patterns
Clone the repo
git clone --depth 1 https://github.com/F-U-S-E-E/FuseDevelopmentGroup

Made for: Claude Code.

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 test-anti-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/f-u-s-e-e/fusedevelopmentgroup/test-anti-patterns.svg)](https://agentmods.dev/skills/f-u-s-e-e/fusedevelopmentgroup/test-anti-patterns)
Your own site
<a href="https://agentmods.dev/skills/f-u-s-e-e/fusedevelopmentgroup/test-anti-patterns"><img src="https://agentmods.dev/badge/skills/f-u-s-e-e/fusedevelopmentgroup/test-anti-patterns.svg" alt="Measured on agentmods" height="20"></a>
Per session 198 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,371 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00198 $0.02371
Opus 5 $0.00099 $0.01185
Sonnet 5 $0.00040 $0.00474
Haiku 4.5 $0.00020 $0.00237

Measured 3d ago against content hash ab7189707dd7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

test-anti-patterns 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 3d 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.

.claude/skills/test-anti-patterns/SKILL.md · 142 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, 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. 3d ago First seen · 142 lines · 198 tokens per session scan A ab7189707dd7

Subscribe to this mod's changes

test-anti-patterns is a skill published in the GitHub repository F-U-S-E-E/FuseDevelopmentGroup (22 stars, last pushed 13d ago), licensed AGPL-3.0. It adds 198 tokens to every session and 2,371 once invoked, about $0.0010 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 2026-09-03.

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