Agent skill

Pytest Skill

by sickn33 in sickn33/agentic-awesome-skills

Generates production-grade pytest tests in Python with fixtures, parametrize, markers, mocking, and conftest patterns.

MITAuto-check passedTesting & QA

Install Pytest Skill

skills CLI

$ npx skills add sickn33/agentic-awesome-skills --skill pytest-skill -a claude-code

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

GitHub CLI

$ gh skill install sickn33/agentic-awesome-skills pytest-skill --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/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/pytest-skill .claude/skills/pytest-skill && 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/

Paste into Claude Code

Install the "pytest-skill" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/pytest-skill into .claude/skills/pytest-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pytest-skill", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/pytest-skill

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add sickn33/agentic-awesome-skills --skill pytest-skill -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install sickn33/agentic-awesome-skills pytest-skill --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/pytest-skill .agents/skills/pytest-skill && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "pytest-skill" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/pytest-skill into .agents/skills/pytest-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pytest-skill", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add sickn33/agentic-awesome-skills --skill pytest-skill -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install sickn33/agentic-awesome-skills pytest-skill --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/pytest-skill .cursor/skills/pytest-skill && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "pytest-skill" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/pytest-skill into .cursor/skills/pytest-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pytest-skill", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/sickn33/agentic-awesome-skills.git --path skills/pytest-skill

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add sickn33/agentic-awesome-skills --skill pytest-skill -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install sickn33/agentic-awesome-skills pytest-skill --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/pytest-skill .gemini/skills/pytest-skill && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "pytest-skill" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/pytest-skill into .gemini/skills/pytest-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pytest-skill", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install sickn33/agentic-awesome-skills pytest-skill

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add sickn33/agentic-awesome-skills --skill pytest-skill -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/pytest-skill .github/skills/pytest-skill && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "pytest-skill" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/pytest-skill into .github/skills/pytest-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pytest-skill", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add sickn33/agentic-awesome-skills --skill pytest-skill -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install sickn33/agentic-awesome-skills pytest-skill --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/pytest-skill .opencode/skills/pytest-skill && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "pytest-skill" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/pytest-skill into .opencode/skills/pytest-skill/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pytest-skill", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: pytest-skill
GitHub stars: 47k
Used in: 1 other repo
Token cost: ~1.4k tokens
SKILL.md length: 270 words
Files: 2
Skills in repo: 1,354
Repo updated: Oct 7, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Generates production-grade pytest tests in Python with fixtures, parametrize, markers, mocking, and conftest patterns.

User mentions pytest
SKILL.md covers When to Use, Core Patterns, Quick Reference and pyproject.toml, plus 2 more sections
Calls pytest
@pytest.fixture

What it does

Pytest Skill is an agent skill from sickn33/agentic-awesome-skills. Generates production-grade pytest tests in Python with fixtures, parametrize, markers, mocking, and conftest patterns. Use when user mentions "pytest", "conftest", "@pytest.fixture", "@pytest.mark", "Python test".

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `reference/playbook.md`).

It sits in Testing & QA, covering Unit testing. It works with pytest and Python. The repository describes itself as: AAS Core is the local, agent-first control plane for complete catalog discovery, agent-owned selection, stack validation, and planning, backed by 2,400+ agentic skills. Includes… The licence is MIT.

When your agent uses it

User mentions pytest
@pytest.fixture

Example prompts

“pytest”
“conftest”
“@pytest.fixture”
“/pytest-skill”

Requirements

Python 3

What it can do on your machine

Read from SKILL.md and the folder at commit ec02547. 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:
- pytest
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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

Pytest Skill loads about 1.4k tokens when it runs. Until then it costs about 57 tokens; SKILL.md has 270 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: ~1.4k

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

The full file from sickn33/agentic-awesome-skills at commit ec02547, republished under its MIT licence (© sickn33). 270 words, ~1,431 tokens.

Download SKILL.mdSave it as .claude/skills/pytest-skill/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: pytest-skill
description: Generates production-grade pytest tests in Python with fixtures, parametrize, markers, mocking, and conftest patterns. Use when user mentions "pytest", "conftest", "@pytest.fixture", "@pytest.mark", "Python test".
risk: critical
source: https://github.com/LambdaTest/agent-skills/tree/main/pytest-skill
source_repo: LambdaTest/agent-skills
source_type: community
date_added: 2026-07-01
license: MIT
license_source: https://github.com/LambdaTest/agent-skills/blob/main/LICENSE

Pytest Testing Skill

When to Use

Use this skill when you need generates production-grade pytest tests in Python with fixtures, parametrize, markers, mocking, and conftest patterns. Use when user mentions "pytest", "conftest", "@pytest.fixture", "@pytest.mark", "Python test". Triggers on: "pytest", "conftest", "Python test", "parametrize", "Python...

Core Patterns

Basic Test

python

import pytest

def test_addition():
    assert 2 + 3 == 5

def test_exception():
    with pytest.raises(ValueError, match="invalid"):
        int("not_a_number")

class TestCalculator:
    def test_add(self):
        calc = Calculator()
        assert calc.add(2, 3) == 5

    def test_divide_by_zero(self):
        with pytest.raises(ZeroDivisionError):
            Calculator().divide(10, 0)

Fixtures

python

@pytest.fixture
def calculator():
    return Calculator()

@pytest.fixture
def db_connection():
    conn = Database.connect("test_db")
    yield conn  # teardown after yield
    conn.rollback()
    conn.close()

@pytest.fixture(scope="module")
def api_client():
    client = APIClient(base_url="http://localhost:8000")
    yield client
    client.logout()

# conftest.py - shared fixtures
@pytest.fixture(autouse=True)
def reset_state():
    State.reset()
    yield
    State.cleanup()

# Usage
def test_add(calculator):
    assert calculator.add(2, 3) == 5

Parametrize

python

@pytest.mark.parametrize("input,expected", [
    ("hello", 5), ("", 0), ("pytest", 6),
])
def test_string_length(input, expected):
    assert len(input) == expected

@pytest.mark.parametrize("a,b,expected", [
    (2, 3, 5), (-1, 1, 0), (0, 0, 0),
])
def test_add(calculator, a, b, expected):
    assert calculator.add(a, b) == expected

Markers

python

@pytest.mark.slow
def test_large_dataset(): ...

@pytest.mark.skip(reason="Not implemented")
def test_future_feature(): ...

@pytest.mark.skipif(sys.platform == "win32", reason="Unix only")
def test_unix_permissions(): ...

@pytest.mark.xfail(reason="Known bug #123")
def test_known_bug(): ...

Mocking

python

from unittest.mock import patch, MagicMock

def test_send_email(mocker):
    mock_smtp = mocker.patch("myapp.email.smtplib.SMTP")
    send_welcome_email("user@test.com")
    mock_smtp.return_value.sendmail.assert_called_once()

def test_api_call(mocker):
    mock_response = mocker.Mock()
    mock_response.status_code = 200
    mock_response.json.return_value = {"users": [{"name": "Alice"}]}
    mocker.patch("myapp.service.requests.get", return_value=mock_response)
    users = get_users()
    assert len(users) == 1

@patch("myapp.service.database")
def test_save_user(mock_db):
    mock_db.save.return_value = True
    assert save_user({"name": "Alice"}) is True
    mock_db.save.assert_called_once()

Assertions

python

assert x == y
assert x != y
assert x in collection
assert isinstance(obj, MyClass)
assert 0.1 + 0.2 == pytest.approx(0.3)

with pytest.raises(ValueError) as exc_info:
    raise ValueError("bad")
assert "bad" in str(exc_info.value)

Anti-Patterns

Bad	Good	Why
`self.assertEqual()`	`assert x == y`	pytest rewrites give better output
Setup in `__init__`	`@pytest.fixture`	Lifecycle management
Global state	Fixture with `yield`	Proper cleanup
Huge test functions	Small focused tests	Easier debugging

Quick Reference

Task	Command
Run all	`pytest`
Run file	`pytest tests/test_login.py`
Run specific	`pytest tests/test_login.py::test_login_success`
By marker	`pytest -m slow`
By keyword	`pytest -k "login and not invalid"`
Verbose	`pytest -v`
Stop first fail	`pytest -x`
Last failed	`pytest --lf`
Coverage	`pytest --cov=myapp --cov-report=html`
Parallel	`pytest -n auto` (pytest-xdist)

pyproject.toml

toml

[tool.pytest.ini_options]
testpaths = ["tests"]
markers = ["slow: slow tests", "integration: integration tests"]
addopts = "-v --tb=short"

Deep Patterns

For production-grade patterns, see reference/playbook.md:

Section	What's Inside
§1 Config	pytest.ini + pyproject.toml with markers, coverage
§2 Fixtures	Scoping, factories, teardown, autouse, tmp_path
§3 Parametrize	Basic, with IDs, cartesian, indirect
§4 Mocking	pytest-mock, monkeypatch, spies, env vars
§5 Async	pytest-asyncio, async fixtures, async client
§6 Exceptions	pytest.raises(match=), warnings
§7 Markers & Plugins	Custom markers, collection hooks
§8 Class-Based	Nested classes, autouse setup
§9 CI/CD	GitHub Actions matrix, coverage gates
§10 Debugging Table	10 common problems with fixes
§11 Best Practices	15-item production checklist

Limitations

Use this skill only when the task clearly matches its upstream source and local project context.
Verify commands, generated code, dependencies, credentials, and external service behavior before applying changes.
Do not treat examples as a substitute for environment-specific tests, security review, or user approval for destructive or costly actions.

Files

SKILL.md and 1 other file in skills/pytest-skill of sickn33/agentic-awesome-skills.

SKILL.md
reference/playbook.md

Open the folder on GitHubat commit ec02547

Used in 1 other repository

We found 5 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in sickn33/agentic-awesome-skills, which our catalogue first saw on October 7, 2026.

lingxling/awesome-skills-cnantigravity-awesome-skills/skills/pytest-skill antigravity-awesome-skills/plugins/agentic-awesome-skills/skills/pytest-skill+1 more

Compare with similar skills

Pytest Skill 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.

Pytest Skill compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Pytest Skill this skillsickn33/agentic-awesome-skills	47k	1 repos	~1.4k	Automated safety check: Pass	MIT	today
Adk Verify Snippetsgoogle/adk-python	22k	—	~1.4k	Automated safety check: Pass	Apache-2.0	today
Hermetic Python Unit TestsdimensionalOS/dimos	4.6k	—	~1.4k	Automated safety check: Pass	Custom licence	today
ONNX Runtime Test Runnermicrosoft/onnxruntime	22k	—	~1.8k	Automated safety check: Pass	MIT	today
Simple Modern Uvjlevy/simple-modern-uv	301	—	~1.9k	Automated safety check: Pass	MIT	1 mo ago
Test Coverage Reviewareed1192/finance-news-aggregator	149	—	~2.6k	Automated safety check: Pass	MIT	5 mo ago

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Questions about Pytest Skill

What does Pytest Skill do?

Generates production-grade pytest tests in Python with fixtures, parametrize, markers, mocking, and conftest patterns. Pytest Skill is an agent skill from sickn33/agentic-awesome-skills. Generates production-grade pytest tests in Python with fixtures, parametrize, markers, mocking, and conftest patterns.

When should I use Pytest Skill?

Pytest Skill fits situations like: user mentions pytest; @pytest.fixture.

How do I install Pytest Skill in Claude Code?

Run `npx skills add sickn33/agentic-awesome-skills --skill pytest-skill -a claude-code`. Or copy the skill folder (skills/pytest-skill in sickn33/agentic-awesome-skills) into .claude/skills/pytest-skill in your project. Claude Code loads it when a task matches its description.

How do I install Pytest Skill in Codex?

Run `npx skills add sickn33/agentic-awesome-skills --skill pytest-skill -a codex`. Or copy the skill folder (skills/pytest-skill in sickn33/agentic-awesome-skills) into .agents/skills/pytest-skill in your project. Codex loads it when a task matches its description.

Can I use Pytest Skill 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 sickn33/agentic-awesome-skills --skill pytest-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/pytest-skill, .gemini/skills/pytest-skill, .github/skills/pytest-skill and .opencode/skills/pytest-skill in your project.

What does Pytest Skill need to run?

Going by SKILL.md and its folder, Pytest Skill needs the command-line tools its instructions call (pytest). Our summary lists: Python 3.

Does Pytest Skill 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 Pytest Skill 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 Pytest Skill use?

Pytest Skill is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Pytest Skill use?

About 1.4k tokens (SKILL.md is roughly 5.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Pytest Skill?

Skills that share tags, products or a category with Pytest Skill: Adk Verify Snippets (google/adk-python, 22k stars), Hermetic Python Unit Tests (dimensionalOS/dimos, 4.6k stars), ONNX Runtime Test Runner (microsoft/onnxruntime, 22k stars) and Simple Modern Uv (jlevy/simple-modern-uv, 301 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Pytest Skill?

sickn33 (a GitHub user) maintains it in sickn33/agentic-awesome-skills, which has 47,343 GitHub stars. The repository holds 1,354 skills in this directory. The repository was last updated on October 7, 2026.

Source: sickn33/agentic-awesome-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Pytest Skill

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Pytest Testing Skill

When to Use

Core Patterns

Basic Test

Fixtures

Parametrize

Markers

Mocking

Assertions

Anti-Patterns

Quick Reference

pyproject.toml

Deep Patterns

Limitations

Files

Used in 1 other repository

Compare with similar skills

Similar skills

More from sickn33/agentic-awesome-skills

Related

Questions about Pytest Skill