testing-patterns

testing-patterns is a skill for Claude Code, Codex from Peadarpol/ai-delivery-control. It costs 45 tokens per session (2,348 once invoked), scanned A, original, no licence file.

A collection of Python testing practices covering pytest, reusable test-data factories, mocks, and test-driven development, or TDD—the cycle of writing a failing test, making it pass, and then improving the code.

In plain words
What is it for?
Writing pytest unit tests, building test factories, choosing mocking strategies, following the TDD cycle, and prioritising test coverage.
Why use it?
It provides established ways to structure tests and decide which parts of a program need coverage.

Skill for Claude CodeCodex

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/peadarpol/ai-delivery-control/testing-patterns
Any agent
npx skills add Peadarpol/ai-delivery-control --skill testing-patterns
Clone the repo
git clone --depth 1 https://github.com/Peadarpol/ai-delivery-control

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 testing-patterns

README.md
[![agentmods](https://agentmods.dev/badge/skills/peadarpol/ai-delivery-control/testing-patterns.svg)](https://agentmods.dev/skills/peadarpol/ai-delivery-control/testing-patterns)
Your own site
<a href="https://agentmods.dev/skills/peadarpol/ai-delivery-control/testing-patterns"><img src="https://agentmods.dev/badge/skills/peadarpol/ai-delivery-control/testing-patterns.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,348 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 $0.00045 $0.02348
Opus 5 $0.00023 $0.01174
Sonnet 5 $0.00009 $0.00470
Haiku 4.5 $0.00005 $0.00235

Measured 4d ago against content hash 1c4b042d8c8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

testing-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 4d 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.

.agent/skills/universal/testing-patterns/SKILL.md · 302 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 4d ago First seen · 302 lines · 45 tokens per session scan A 1c4b042d8c8e

Subscribe to this mod's changes

testing-patterns is a skill published in the GitHub repository Peadarpol/ai-delivery-control (14 stars, last pushed 26d ago), with no licence file. It adds 45 tokens to every session and 2,348 once invoked, about $0.0002 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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