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Agent skill

Test Automation

by revfactory in revfactory/harness-100

A full test automation pipeline. An agent skill from revfactory/harness-100.

Apache-2.0Auto-check passedTesting & QA

Install Test Automation

skills CLI
$ npx skills add revfactory/harness-100 --skill test-automation -a claude-code

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

GitHub CLI
$ gh skill install revfactory/harness-100 test-automation --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/revfactory/harness-100.git skills-src && mkdir -p .claude/skills && cp -r skills-src/en/24-test-automation/.claude/skills/test-automation .claude/skills/test-automation && 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
test-automation
GitHub stars
1.3k
Token cost
~1.7k tokens
SKILL.md length
682 words
Files
1
Skills in repo
464
Repo updated
First seen
Licence
Apache-2.0

At a glance

A full test automation pipeline. An agent skill from revfactory/harness-100.

  • Works in 3 steps: Preparation (Performed directly by… → Team Assembly and Execution → Integration and Final Deliverables
  • Requests like automate tests
  • SKILL.md covers Execution Mode, Agent Composition, Workflow and Modes by Task Scale, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Test Automation is an agent skill from revfactory/harness-100. A full test automation pipeline. An agent team collaborates to perform strategy formulation, unit/integration test writing, CI integration, and coverage analysis. Use this skill for requests like 'automate tests', 'write test code', 'create unit tests', 'write integration tests', 'analyze test coverage', 'create a test strategy', 'integrate tests into CI', 'design test pyramid', and other test automation tasks. Also supports coverage analysis and improvements for existing tests. Note: E2E/UI test execution…

Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA, covering Test strategy, Integration testing and Unit testing. The licence is Apache-2.0.

When your agent uses it

  • Requests like automate tests
  • Write test code
  • Create unit tests
  • Write integration tests

Example prompts

  • “automate tests”
  • “write test code”
  • “create unit tests”
  • “/test-automation”

Workflow steps

3 steps, taken from the step headings in SKILL.md.

  1. Preparation (Performed directly by Orchestrator)
  2. Team Assembly and Execution
  3. Integration and Final Deliverables

What it can do on your machine

Read from SKILL.md and the folder at commit 8e8d35c. 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

    No scripts in the folder and no shell commands in SKILL.md.

    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

Test Automation loads about 1.7k tokens when it runs. Until then it costs about 155 tokens; SKILL.md has 682 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~155
When it runs · the whole SKILL.md, loaded when a task matches
~1.7k

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 revfactory/harness-100 at commit 8e8d35c, republished under its Apache-2.0 licence (© revfactory). 682 words, ~1,741 tokens.

Download SKILL.mdSave it as .claude/skills/test-automation/SKILL.md (or your agent's skills folder).
name
test-automation
description
A full test automation pipeline. An agent team collaborates to perform strategy formulation, unit/integration test writing, CI integration, and coverage analysis. Use this skill for requests like 'automate tests', 'write test code', 'create unit tests', 'write integration tests', 'analyze test coverage', 'create a test strategy', 'integrate tests into CI', 'design test pyramid', and other test automation tasks. Also supports coverage analysis and improvements for existing tests. Note: E2E/UI test execution, browser automation execution, and load test execution are outside the scope of this skill.

Test Automation — Test Automation Pipeline

An agent team collaborates to perform test strategy formulation -> test writing -> CI integration -> coverage analysis.

Execution Mode

Agent Team — 5 members communicate directly via SendMessage and cross-validate each other.

Agent Composition

AgentFileRoleType
test-strategist.claude/agents/test-strategist.mdTest pyramid, tools, CI designgeneral-purpose
unit-tester.claude/agents/unit-tester.mdUnit test writing, mockinggeneral-purpose
integration-tester.claude/agents/integration-tester.mdAPI/DB/external service testinggeneral-purpose
coverage-analyst.claude/agents/coverage-analyst.mdCoverage gap analysis, improvement plangeneral-purpose
qa-reviewer.claude/agents/qa-reviewer.mdCross-validation, test quality evaluationgeneral-purpose

Workflow

Phase 1: Preparation (Performed directly by Orchestrator)
  1. Extract from user input:
    • Target Code: Codebase or module to test
    • Tech Stack (optional): Language, framework, existing test tools
    • Constraints (optional): Coverage targets, CI platform, time constraints
    • Existing Tests (optional): Already written test code
  2. Create _workspace/ directory at the project root
  3. Organize input and save to _workspace/00_input.md
  4. If existing files are available, copy them to _workspace/ and skip the corresponding Phase
  5. Determine execution mode based on the scope of the request (see "Modes by Task Scale" below)
Phase 2: Team Assembly and Execution
OrderTaskAssigneeDependenciesDeliverable
1Test StrategystrategistNone_workspace/01_test_strategy.md
2aUnit Test Writingunit-testerTask 1_workspace/02_unit_tests.md
2bIntegration Test Writingintegration-testerTask 1_workspace/03_integration_tests.md
3Coverage Analysiscoverage-analystTasks 1, 2a, 2b_workspace/04_coverage_report.md
4Final Reviewqa-reviewerTasks 1-3_workspace/05_review_report.md

Tasks 2a (unit) and 2b (integration) can be executed in parallel.

Inter-team Communication Flow:

  • strategist completes -> delivers test scope and mocking strategy to unit-tester; delivers integration test scope and environment strategy to integration-tester
  • unit-tester completes -> shares mocked interface list with integration-tester; delivers test list to coverage-analyst
  • integration-tester completes -> delivers integration test list to coverage-analyst
  • coverage-analyst completes -> requests additional tests from unit-tester/integration-tester when gaps are found
  • qa-reviewer cross-validates all deliverables. Requests fixes for RED Must Fix items (up to 2 times)
Phase 3: Integration and Final Deliverables
  1. Check all files in _workspace/
  2. Verify all RED Must Fix items have been addressed
  3. Report the final summary to the user

Modes by Task Scale

User Request PatternExecution ModeDeployed Agents
"Automate tests", "Full testing"Full PipelineAll 5 agents
"Write unit tests only"Unit Test Modestrategist + unit-tester + reviewer
"Write integration tests only"Integration Test Modestrategist + integration-tester + reviewer
"Analyze coverage"Coverage Modecoverage-analyst + reviewer
"Create test strategy only"Strategy Modestrategist + reviewer

Leveraging Existing Files: If the user provides existing test code, coverage reports, etc., copy the files to the appropriate location in _workspace/ and skip the corresponding agent's step.

Show full SKILL.md (275 more words)Show less

Data Transfer Protocol

StrategyMethodPurpose
File-based_workspace/ directoryStore and share main deliverables
Message-basedSendMessageReal-time delivery of key information, fix requests
Task-basedTaskCreate/TaskUpdateProgress tracking, dependency management

Error Handling

Error TypeStrategy
Code inaccessibleWrite general tests based on user description, note "estimation-based" in report
Test framework not installedProvide test code with installation guide
Agent failureRetry once -> if fails, proceed without that deliverable, note omission in review
RED found in reviewRequest fix from relevant agent -> rework -> re-verify (up to 2 times)
Coverage tool cannot runSubstitute with static analysis-based estimated coverage

Test Scenarios

Normal Flow

Prompt: "Apply test automation to a REST API built with NestJS. Currently there are no tests at all." Expected Result:

  • Strategy: Jest + Supertest selection, risk-based priorities, CI (GitHub Actions) design
  • Unit: Service class tests, Repository mocking, DTO validation
  • Integration: API endpoint tests, PostgreSQL integration via Testcontainers
  • Coverage: Per-module gap analysis, P0/P1 additional test suggestions
  • Review: Full consistency verification across all items
Existing File Utilization Flow

Prompt: "Current test coverage is 40% and I want to get it to 80%" + code/tests attached Expected Result:

  • Start in coverage mode, analyze current gaps
  • Establish additional test plan with risk-based priorities
  • Phased improvement roadmap (40% -> 60% -> 80%)
Error Flow

Prompt: "Write test code for this function" (only one function provided) Expected Result:

  • Switch to unit test mode
  • Write boundary value, normal/abnormal case tests for the function
  • Provide tests immediately using basic AAA pattern even without a strategy

Agent Extension Skills

SkillPathEnhanced AgentRole
test-design-patterns.claude/skills/test-design-patterns/skill.mdtest-strategist, unit-testerBoundary value analysis, equivalence partitioning, state transition, pairwise, risk-based prioritization
mocking-strategy.claude/skills/mocking-strategy/skill.mdunit-tester, integration-testerMock/Stub/Spy/Fake selection, per-layer mocking, anti-pattern prevention

© revfactory, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in en/24-test-automation/.claude/skills/test-automation of revfactory/harness-100.

Open the folder on GitHubat commit 8e8d35c

Compare with similar skills

Test Automation 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.

Test Automation compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Test Automation this skillrevfactory/harness-1001.3k—~1.7kAutomated safety check: PassApache-2.0
Dotnet Testingnovotnyllc/dotnet-artisan233—~972Automated safety check: PassMIT
Testing QAaiskillstore/marketplace4303 repos~1.2kAutomated safety check: PassNone
Test Experteinverne/dotfiles121—~2.3kAutomated safety check: PassGPL-3.0
Scenario Testingaiskillstore/marketplace4301 repos~830Automated safety check: PassNone
Recommending Test Layersbitwarden/ai-plugins154—~2.4kAutomated safety check: PassCustom licence

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Categories

Questions about Test Automation

What does Test Automation do?

A full test automation pipeline. An agent skill from revfactory/harness-100. Test Automation is an agent skill from revfactory/harness-100. A full test automation pipeline.

When should I use Test Automation?

Test Automation fits situations like: requests like automate tests; write test code; create unit tests; write integration tests.

How do I install Test Automation in Claude Code?

Run `npx skills add revfactory/harness-100 --skill test-automation -a claude-code`. Or copy the skill folder (en/24-test-automation/.claude/skills/test-automation in revfactory/harness-100) into .claude/skills/test-automation in your project. Claude Code loads it when a task matches its description.

How do I install Test Automation in Codex?

Run `npx skills add revfactory/harness-100 --skill test-automation -a codex`. Or copy the skill folder (en/24-test-automation/.claude/skills/test-automation in revfactory/harness-100) into .agents/skills/test-automation in your project. Codex loads it when a task matches its description.

Can I use Test Automation 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 revfactory/harness-100 --skill test-automation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/test-automation, .gemini/skills/test-automation, .github/skills/test-automation and .opencode/skills/test-automation in your project.

What does Test Automation need to run?

SKILL.md names no scripts, command-line tools or credentials: Test Automation is instructions for the agent only.

Does Test Automation 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 Test Automation 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 Test Automation use?

Test Automation is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Test Automation use?

About 1.7k tokens (SKILL.md is roughly 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 Test Automation?

Skills that share tags, products or a category with Test Automation: Dotnet Testing (novotnyllc/dotnet-artisan, 233 stars), Testing QA (aiskillstore/marketplace, 430 stars), Test Expert (einverne/dotfiles, 121 stars) and Scenario Testing (aiskillstore/marketplace, 430 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Test Automation?

revfactory (a GitHub user) maintains it in revfactory/harness-100, which has 1,290 GitHub stars. The repository holds 464 skills in this directory. The repository was last updated on March 22, 2026.

Source: revfactory/harness-100 on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.