A unit-test planning aid that turns requirements into checks for individual functions or components. Unit tests examine one small piece of code separately from integration and end-to-end tests.

Use it to create and document unit-test cases from requirements, choose the test framework and mocking approach, and record results.

It gives developers and testers a shared list of expected inputs, outputs, and checks before testing starts. Failed checks can be recorded and sent back to development for debugging.

qa-ut — Skill for Claude Code and Codex by hiepdnh: A unit-test planning aid that turns requirements into checks…

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/hiepdnh/agentic-development-lifecycle/qa-ut

Any agent

npx skills add hiepdnh/Agentic-Development-Lifecycle --skill qa-ut

Clone the repo

git clone --depth 1 https://github.com/hiepdnh/Agentic-Development-Lifecycle

Made for: Claude Code, Codex.

Or install agentic-development-lifecycle, the plugin that ships this one along with the rest of its 35 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/hiepdnh/agentic-development-lifecycle/qa-ut.svg)](https://agentmods.dev/skills/hiepdnh/agentic-development-lifecycle/qa-ut)

Your own site

<a href="https://agentmods.dev/skills/hiepdnh/agentic-development-lifecycle/qa-ut"><img src="https://agentmods.dev/badge/skills/hiepdnh/agentic-development-lifecycle/qa-ut.svg" alt="Measured on agentmods" height="20"></a>

Per session 97 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,304 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.

Model	Per session	Once invoked
Fable 5.1	$0.00097	$0.01304
Opus 5	$0.00048	$0.00652
Sonnet 5	$0.00019	$0.00261
Haiku 4.5	$0.00010	$0.00130

Measured 5d ago against content hash ee67df4ceaa6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

qa-ut 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 5d 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/qa-ut/SKILL.md · 147 lines

How it starts

The opening of the file, as written. The whole thing — 147 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: /qa-ut

Role: QA Engineer
Mục đích: Tạo Unit Test plan cho từng function/component, hỗ trợ thực thi và ghi kết quả. Khi fail → bug feedback loop rõ ràng về dev phase.

Hướng dẫn thực hiện

Bước 1 — Đọc input

Đọc theo thứ tự:

docs/tasks/[TASK-ID]/requirements.md — AC list, business rules
docs/tasks/[TASK-ID]/analysis.md — files đã implement, approach đã chọn
Màn hình / API docs liên quan (nếu có trong analysis.md)

Bước 2 — Gate: Xác nhận scope UT

Dùng AskUserQuestion tool:

Component/Function: Những unit nào cần test? (Nếu không rõ → AI tự suy ra từ analysis.md)
Test framework: Jest / JUnit / pytest / Vitest / khác?
Coverage target: Line coverage target % nếu có requirement
Mock strategy: Unit test thuần (mock all deps) hay lean integration (mock chỉ external)?

Chờ confirm.

Bước 3 — Tạo UT Plan

Tạo docs/tasks/[TASK-ID]/test-plan-ut.md dùng template templates/test-plan.md với các TC:

Mỗi TC có:

TC-UT-XXX: ID dạng TC-UT-001
Unit: Tên function/method/component đang test
Input: Dữ liệu đầu vào cụ thể
Expected: Output/behavior mong đợi
Assertion: Assertion cụ thể (ví dụ: expect(result).toBe(42))
Type: Happy / Edge / Negative / Error

Cover đầy đủ:

Happy path (input hợp lệ, output đúng)
Edge cases (boundary values, empty, null, zero)
Negative cases (invalid input, type mismatch)
Error cases (exception thrown, error message)

Bước 3.5 — Render HTML checklist

Sinh docs/tasks/[TASK-ID]/test-plan-ut.html với:

Checklist tick từng TC, state lưu localStorage (key: ut-[TASK-ID])
Group theo Unit (function/component) dùng <details><summary>
Filter theo Type (Happy / Edge / Negative / Error)
Pill màu theo priority: High=🔴, Med=🟡, Low=🟢

File HTML KHÔNG commit. test-plan-ut.md là source of truth.

✓ Đã sinh `docs/tasks/[TASK-ID]/test-plan-ut.html`
  Mở bằng browser khi chạy test để tick từng TC.

Bước 4 — Gate: Validate test plan

Read the full file on GitHub · 147 lines

Files

What ships with it

2 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.

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.

5d ago First seen · 147 lines · 97 tokens per session scan A ee67df4ceaa6

Subscribe to this mod's changes

qa-ut is a skill published in the GitHub repository hiepdnh/Agentic-Development-Lifecycle (6 stars, last pushed 8d ago), licensed MIT. It adds 97 tokens to every session and 1,304 once invoked, about $0.0005 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 2026-08-31.

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