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Agent skill

Testing

by NiceEval in NiceEval/NiceEval

Inspect, select, author, modify, or review NiceEval E2E and Unit test owners.

No licenceAuto-check passedTesting & QA

Install Testing

skills CLI
$ npx skills add NiceEval/NiceEval --skill testing -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install NiceEval/NiceEval testing --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/NiceEval/NiceEval.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/testing .claude/skills/testing && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
testing
GitHub stars
156
Token cost
~2.1k tokens
SKILL.md length
1,067 words
Files
3 (incl. references)
Skills in repo
11
Repo updated
First seen
Licence
None found

At a glance

Inspect, select, author, modify, or review NiceEval E2E and Unit test owners.

  • A change needs a test strategy
  • Calls pnpm
  • An existing test must be traced to its Feature
  • A bug requires public-entry E2E TDD

What it does

Testing is an agent skill from NiceEval/NiceEval. Inspect, select, author, modify, or review NiceEval E2E and Unit test owners. Use when a change needs a test strategy, an existing test must be traced to its Feature or Use Case, or a bug requires public-entry E2E TDD.

Its SKILL.md is about 2.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `references/case-ownership.md` and `references/local-e2e-execution.md`).

It sits in Testing & QA, covering End-to-end testing, Unit testing and Test strategy. It works with pnpm. The repository describes itself as: build eval for your agent in 10 mins.

When your agent uses it

  • A change needs a test strategy
  • An existing test must be traced to its Feature
  • A bug requires public-entry E2E TDD

Example prompts

  • “/testing”

What it can do on your machine

Read from SKILL.md and the folder at commit 011a00a. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • pnpm

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use pnpm, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Testing loads about 2.1k tokens when it runs, and up to ~3.4k if it reads all its reference files. Until then it costs about 57 tokens; SKILL.md has 1,067 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~57
When it runs · the whole SKILL.md, loaded when a task matches
~2.1k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 1,067 words (~2,088 tokens).

“Use pnpm exec concord --skill repository for the packaged command guide; load other topics only as needed. Generic --skill test describes command evidence, which cannot satisfy NiceEval formal gates. Read the affected product Feature first, then the testing contract. Run…”

— opening of SKILL.md by NiceEval
name
testing
metadata.command
pnpm run repo docs test
metadata.design
docs/engineering/testing/README.md

Read the full SKILL.md on GitHub

Files

SKILL.md and 2 other files (references) in .agents/skills/testing of NiceEval/NiceEval.

  • SKILL.md
  • references/case-ownership.md
  • references/local-e2e-execution.md

Open the folder on GitHubat commit 011a00a

Compare with similar skills

Testing next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Testing compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Testing this skillNiceEval/NiceEval156—~2.1kAutomated safety check: PassNone
Odc TestingDouglasNeuroInformatics/OpenDataCapture119—~1.5kAutomated safety check: NotesApache-2.0
TDD WorkflowhellangleZ/burn-in-cceverywhere-ralph11211 repos~2.4kAutomated safety check: PassNone
Designing TestsCloudAI-X/claude-workflow-v21.4k1 repos~1.5kAutomated safety check: PassMIT
Test Pyramidkubernetes-sigs/agent-sandbox4.2k—~1.6kAutomated safety check: PassApache-2.0
Ha Frontend Testinghome-assistant/frontend5.7k—~1.7kAutomated safety check: PassApache-2.0

Similar skills

  • Odc Testing

    DouglasNeuroInformatics/OpenDataCapture

    Test a change in Open Data Capture. An agent skill from DouglasNeuroInformatics/OpenDataCapture.

    119 GitHub stars~1.5k tokensUpdated today
    Testing & QAAuto-check: notes

  • TDD Workflow

    hellangleZ/burn-in-cceverywhere-ralph

    A skill your agent uses when writing new features, fixing bugs, or refactoring code.

    112 GitHub starsUsed in 11 repos~2.4k tokens
    Testing & QAAuto-check passed

  • Designing Tests

    CloudAI-X/claude-workflow-v2

    Designs and implements testing strategies for any codebase. An agent skill from CloudAI-X/claude-workflow-v2.

    1.4k GitHub starsUsed in 1 repo~1.5k tokens
    Testing & QAAuto-check passed

  • Test Pyramid

    kubernetes-sigs/agent-sandbox

    Official

    Analyze the repo's unit and E2E tests and propose rebalancing toward a test pyramid — which E2E tests (or assertions inside them) can be covered by unit tests, which unit-level gaps genuinely need…

    4.2k GitHub stars~1.6k tokensUpdated yesterday
    Testing & QAAuto-check passed

  • Ha Frontend Testing

    home-assistant/frontend

    Home Assistant frontend testing and validation workflow. An agent skill from home-assistant/frontend.

    5.7k GitHub stars~1.7k tokensUpdated today
    Testing & QAAuto-check passed

  • Testing

    web-infra-dev/rstest

    Testing workflow for the Rstest monorepo. An agent skill from web-infra-dev/rstest.

    505 GitHub stars~2.1k tokensUpdated 7 days ago
    Testing & QAAuto-check passed

More from NiceEval/NiceEval

All 11 skills in this repo

  • Effect V3 To V4

    NiceEval/NiceEval

    A skill your agent uses when migrating a codebase from Effect v3 to Effect v4, upgrading effect or any @effect/ package across the v3/v4 boundary.

    156 GitHub stars~1.1k tokensUpdated today
    Auto-check passed

  • Effect TS

    NiceEval/NiceEval

    A skill your agent uses when implementing, debugging, or reviewing NiceEval code whose correctness depends on Effect APIs or semantics, including typed failures, Schema, Scope, concurrency…

    156 GitHub stars~709 tokensUpdated today
    Auto-check passed

  • Issue

    NiceEval/NiceEval

    Prepare, deduplicate, create, triage, update, close, or safely retry NiceEval GitHub Issues from public sanitized observations.

    156 GitHub stars~1.1k tokensUpdated today
    Auto-check passed

  • Feature

    NiceEval/NiceEval

    Inspect, design, trace, or revise NiceEval Feature and Use Case contracts.

    156 GitHub stars~661 tokensUpdated today
    Auto-check passed

  • Feedback

    NiceEval/NiceEval

    Maintain current Concord Issue owners, closure and Memory relations.

    156 GitHub stars~524 tokensUpdated today
    Auto-check passed

  • Pull Request

    NiceEval/NiceEval

    Create, update, or validate a NiceEval pull request body. An agent skill from NiceEval/NiceEval.

    156 GitHub stars~923 tokensUpdated today
    Auto-check passed

Works with

Categories

Questions about Testing

What does Testing do?

Inspect, select, author, modify, or review NiceEval E2E and Unit test owners. Testing is an agent skill from NiceEval/NiceEval. Inspect, select, author, modify, or review NiceEval E2E and Unit test owners.

When should I use Testing?

Testing fits situations like: A change needs a test strategy; an existing test must be traced to its Feature; A bug requires public-entry E2E TDD.

How do I install Testing in Claude Code?

Run `npx skills add NiceEval/NiceEval --skill testing -a claude-code`. Or copy the skill folder (.agents/skills/testing in NiceEval/NiceEval) into .claude/skills/testing in your project. Claude Code loads it when a task matches its description.

How do I install Testing in Codex?

Run `npx skills add NiceEval/NiceEval --skill testing -a codex`. Or copy the skill folder (.agents/skills/testing in NiceEval/NiceEval) into .agents/skills/testing in your project. Codex loads it when a task matches its description.

Can I use Testing in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add NiceEval/NiceEval --skill testing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/testing, .gemini/skills/testing, .github/skills/testing and .opencode/skills/testing in your project.

What does Testing need to run?

Going by SKILL.md and its folder, Testing needs the command-line tools its instructions call (pnpm).

Does Testing access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Testing safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Testing use?

No licence was found for Testing or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Testing use?

About 2.1k tokens (SKILL.md is roughly 8.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.3k tokens, read only when the agent opens those files.

What are the alternatives to Testing?

Skills that share tags, products or a category with Testing: Odc Testing (DouglasNeuroInformatics/OpenDataCapture, 119 stars), TDD Workflow (hellangleZ/burn-in-cceverywhere-ralph, 112 stars), Designing Tests (CloudAI-X/claude-workflow-v2, 1.4k stars) and Test Pyramid (kubernetes-sigs/agent-sandbox, 4.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Testing?

NiceEval (a GitHub organization) maintains it in NiceEval/NiceEval, which has 156 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on October 7, 2026.

Source: NiceEval/NiceEval on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.