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Agent skill

Building And Testing

by quarkusio in quarkusio/quarkus

How to build and test Quarkus: Maven commands, build flags, incremental builds, justfile aliases, and important build rules.

Apache-2.0Auto-check passed

Install Building And Testing

skills CLI
$ npx skills add quarkusio/quarkus --skill building-and-testing -a claude-code

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

GitHub CLI
$ gh skill install quarkusio/quarkus building-and-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/quarkusio/quarkus.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/building-and-testing .claude/skills/building-and-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
building-and-testing
GitHub stars
16k
Token cost
~615 tokens
SKILL.md length
187 words
Files
1
Skills in repo
12
Repo updated
First seen
Licence
Apache-2.0

At a glance

How to build and test Quarkus: Maven commands, build flags, incremental builds, justfile aliases, and important build rules.

  • SKILL.md covers Quick Build (First Time), Building a Specific Extension, Building Core and Running Tests, plus 4 more sections
  • Calls just

What it does

Building And Testing is an agent skill from quarkusio/quarkus. How to build and test Quarkus: Maven commands, build flags, incremental builds, justfile aliases, and important build rules.

Its SKILL.md is about 620 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: Quarkus: Supersonic Subatomic Java. The licence is Apache-2.0.

Example prompts

  • “/building-and-testing”

What it can do on your machine

Read from SKILL.md and the folder at commit 8a03c56. 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:

    • just

    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

Building And Testing loads about 615 tokens when it runs. Until then it costs about 36 tokens; SKILL.md has 187 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~36
When it runs · the whole SKILL.md, loaded when a task matches
~615

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 quarkusio/quarkus at commit 8a03c56, republished under its Apache-2.0 licence (© quarkusio). 187 words, ~615 tokens.

Download SKILL.mdSave it as .claude/skills/building-and-testing/SKILL.md (or your agent's skills folder).
name
building-and-testing
description
How to build and test Quarkus: Maven commands, build flags, incremental builds, justfile aliases, and important build rules.

Build System

Quarkus uses Maven. The full build is large; know how to build selectively. Ensure MAVEN_OPTS includes at least -Xmx4g for builds (do not override the user's existing MAVEN_OPTS).

Quick Build (First Time)

bash
./mvnw -Dquickly

This skips tests, ITs, docs, native, and validation.

Building a Specific Extension

bash
# All modules of an extension
./mvnw install -f extensions/<name>/

# A single module
./mvnw install -f extensions/<name>/deployment

Building Core

bash
./mvnw install -f core/ -DskipTests

Running Tests

bash
# Run tests for an extension
./mvnw verify -f extensions/<name>/ -Dstart-containers -Dtest-containers

# Run a single test class
./mvnw test -f integration-tests/<name>/ -Dstart-containers -Dtest-containers -Dtest=MyTest

# Run a single test method
./mvnw verify -Dstart-containers -Dtest-containers -Dtest=fully.qualified.ClassName#methodName

# Native integration tests
./mvnw verify -f integration-tests/<name>/ -Dstart-containers -Dtest-containers -Dnative

Incremental Build

bash
# Build only changed modules and their downstream dependencies
./mvnw install -Dincremental

Key Maven Flags

FlagPurpose
-DquicklySkip tests, ITs, docs, native, validation
-DquicklyDocsLike -Dquickly but includes docs
-DnativeBuild and test native image
-Dno-formatSkip code formatting check
-DskipTests / -DskipITsSkip unit / integration tests
-Dno-test-modulesSkip building test modules
-DincrementalOnly build changed modules

Justfile

A justfile (.justfile in the repo root) provides convenience aliases. Run just -l to see them. By default uses ./mvnw -T0.8C (parallel build). Set QMVNCMD to override the Maven command (e.g., QMVNCMD=mvnd for Maven Daemon).

Important Build Rules

  • Always install (not just compile) when building modules that other modules depend on
  • If you change a runtime module, rebuild its deployment module too
  • If you change something in core/, downstream extensions may need rebuilding
  • Use ./mvnw (the wrapper) to ensure the correct Maven version
  • After adding/removing/renaming an extension, run update-extension-dependencies.sh

© quarkusio, 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 .agents/skills/building-and-testing of quarkusio/quarkus.

Open the folder on GitHubat commit 8a03c56

Compare with similar skills

Building And 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.

Building And Testing compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Building And Testing this skillquarkusio/quarkus16k—~615Automated safety check: PassApache-2.0
Flagsvercel/next.js143k—~746Automated safety check: PassMIT
Quarkus TDDaffaan-m/ECC276k1 repos~6.4kAutomated safety check: PassMIT
Quarkus Securityaffaan-m/ECC276k—~3.1kAutomated safety check: PassMIT
Quarkus Patternsaffaan-m/ECC276k1 repos~5.4kAutomated safety check: PassMIT
Quarkus Patternsaffaan-m/ECC276k—~6.1kAutomated safety check: PassMIT

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  • Creating Extensions

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Questions about Building And Testing

What does Building And Testing do?

How to build and test Quarkus: Maven commands, build flags, incremental builds, justfile aliases, and important build rules. Building And Testing is an agent skill from quarkusio/quarkus. How to build and test Quarkus: Maven commands, build flags, incremental builds, justfile aliases, and important build rules.

How do I install Building And Testing in Claude Code?

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

How do I install Building And Testing in Codex?

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

Can I use Building And 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 quarkusio/quarkus --skill building-and-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/building-and-testing, .gemini/skills/building-and-testing, .github/skills/building-and-testing and .opencode/skills/building-and-testing in your project.

What does Building And Testing need to run?

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

Does Building And 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 Building And 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 Building And Testing use?

Building And Testing 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 Building And Testing use?

About 615 tokens (SKILL.md is roughly 2.5k 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 Building And Testing?

Skills that share tags, products or a category with Building And Testing: Flags (vercel/next.js, 143k stars), Quarkus TDD (affaan-m/ECC, 276k stars), Quarkus Security (affaan-m/ECC, 276k stars) and Quarkus Patterns (affaan-m/ECC, 276k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Building And Testing?

quarkusio (a GitHub organization) maintains it in quarkusio/quarkus, which has 15,933 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on October 9, 2026.

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