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Agent skill

401 Frameworks Quarkus Core

by jabrena in jabrena/plinth

A skill your agent uses when building or reviewing core Quarkus applications with CDI beans and scopes, SmallRye Config and profiles, lifecycle, interceptors and events, virtual threads, and…

Apache-2.0Auto-check passed

Install 401 Frameworks Quarkus Core

skills CLI
$ npx skills add jabrena/plinth --skill 401-frameworks-quarkus-core -a claude-code

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

GitHub CLI
$ gh skill install jabrena/plinth 401-frameworks-quarkus-core --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/jabrena/plinth.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/401-frameworks-quarkus-core .claude/skills/401-frameworks-quarkus-core && 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
401-frameworks-quarkus-core
GitHub stars
447
Token cost
~887 tokens
SKILL.md length
328 words
Files
2 (incl. references)
Skills in repo
124
Repo updated
First seen
Licence
Apache-2.0

At a glance

A skill your agent uses when building or reviewing core Quarkus applications with CDI beans and scopes, SmallRye Config and profiles, lifecycle, interceptors and events, virtual threads, and…

  • Reviewing core Quarkus applications with CDI beans and scopes
  • SKILL.md covers Constraints, When to use this skill, Workflow and Reference
  • Calls mvn
  • SmallRye Config and profiles

What it does

401 Frameworks Quarkus Core is an agent skill from jabrena/plinth. Use when building or reviewing core Quarkus applications with CDI beans and scopes, SmallRye Config and profiles, lifecycle, interceptors and events, virtual threads, and test-friendly design. This should trigger for requests such as Review Java code for Quarkus application structure and CDI; Apply best practices for Quarkus configuration and beans; Improve CDI interceptors, events, or programmatic injection in Quarkus; Add virtual-thread configuration or tune CDI lifecycle. ; Review Quarkus CDI bean lifecycle…

Its SKILL.md is about 890 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/401-frameworks-quarkus-core.md`).

It works with Java. The repository describes itself as: Plinth is an AI-native engineering toolkit for modern Java enterprise SDLC, built around reusable Commands, Agents, Skills, and MCP Servers. The licence is Apache-2.0.

When your agent uses it

  • Reviewing core Quarkus applications with CDI beans and scopes
  • SmallRye Config and profiles
  • Interceptors and events
  • Virtual threads

Example prompts

  • “/401-frameworks-quarkus-core”

What it can do on your machine

Read from SKILL.md and the folder at commit dca88dc. 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:

    • mvn

    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

401 Frameworks Quarkus Core loads about 887 tokens when it runs, and up to ~7.5k if it reads all its reference files. Until then it costs about 146 tokens; SKILL.md has 328 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~146
When it runs · the whole SKILL.md, loaded when a task matches
~887
With references · SKILL.md plus every file in references/, read only if the agent opens them
~7.5k

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 jabrena/plinth at commit dca88dc, republished under its Apache-2.0 licence (© jabrena). 328 words, ~887 tokens.

Download SKILL.mdSave it as .claude/skills/401-frameworks-quarkus-core/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
401-frameworks-quarkus-core
description
Use when building or reviewing core Quarkus applications with CDI beans and scopes, SmallRye Config and profiles, lifecycle, interceptors and events, virtual threads, and test-friendly design. This should trigger for requests such as Review Java code for Quarkus application structure and CDI; Apply best practices for Quarkus configuration and beans; Improve CDI interceptors, events, or programmatic injection in Quarkus; Add virtual-thread configuration or tune CDI lifecycle. ; Review Quarkus CDI bean lifecycle and configuration. Part of Plinth Toolkit
license
Apache-2.0
metadata.author
Juan Antonio Breña Moral
metadata.version
0.19.0

Quarkus Core Guidelines

Apply Quarkus core guidelines for CDI beans, configuration, profiles, and lifecycle.

What is covered in this Skill?

  • @QuarkusMain and application entry (when custom main is needed)
  • CDI scopes: @ApplicationScoped, @Singleton, @Dependent; bean disambiguation (@Default, @Alternative, @Named)
  • Constructor injection with @Inject
  • CDI interceptors (@Interceptor, @InterceptorBinding) for cross-cutting concerns
  • CDI events: @Observes StartupEvent / ShutdownEvent, @ObservesAsync for async dispatch
  • Programmatic injection with Instance<T> for dynamic bean selection
  • @ConfigMapping and structured configuration with Bean Validation (@Valid)
  • Profile-specific properties (%dev, %test, %prod) and @IfBuildProfile
  • Startup and shutdown observers (@Startup, @PreDestroy)
  • Virtual threads with @RunOnVirtualThread (Java 21+)
  • Native-image safety: @RegisterForReflection, @DisabledOnNativeImage

Scope: Apply recommendations based on the reference rules and good/bad code examples.

Constraints

Before applying any Quarkus changes, ensure the project compiles. If compilation fails, stop immediately. After applying improvements, run full verification.

  • MANDATORY: Run ./mvnw compile or mvn compile before applying any change
  • PREREQUISITE: Project must compile successfully before applying Quarkus core improvements
  • SAFETY: If compilation fails, stop immediately — compilation failure is a blocking condition
  • BLOCKING CONDITION: Compilation errors must be resolved by the user before proceeding
  • VERIFY: Run ./mvnw clean verify or mvn clean verify after applying improvements
  • BEFORE APPLYING: Read the reference for detailed rules, good/bad patterns, and constraints

When to use this skill

  • Review Java code for Quarkus application structure and CDI
  • Apply best practices for Quarkus configuration and beans
  • Improve CDI interceptors, events, or programmatic injection in Quarkus
  • Add virtual-thread configuration or tune CDI lifecycle
  • Review Quarkus CDI bean lifecycle and configuration

Workflow

  1. Read reference and assess project context

Read references/401-frameworks-quarkus-core.md and inspect the current project setup before proposing changes.

  1. Gather scope and decide target improvements

Identify requested outcomes, constraints, and the minimum safe set of changes to apply.

  1. Apply framework-aligned changes

Implement or refactor configuration/code following the reference patterns and project conventions.

  1. Run verification and report results

Execute appropriate build/tests and summarize what changed, what was verified, and any follow-up actions.

Reference

For detailed guidance, examples, and constraints, see references/401-frameworks-quarkus-core.md.

© jabrena, 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

SKILL.md and 1 other file (references) in skills/401-frameworks-quarkus-core of jabrena/plinth.

  • SKILL.md
  • references/401-frameworks-quarkus-core.md

Open the folder on GitHubat commit dca88dc

Compare with similar skills

401 Frameworks Quarkus Core 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.

401 Frameworks Quarkus Core compared with similar skills
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401 Frameworks Quarkus Core this skilljabrena/plinth447—~887Automated safety check: PassApache-2.0
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Android API Diffgkd-kit/gkd43k—~796Automated safety check: PassGPL-3.0
Video Cover Imageitwanger/toBeBetterJavaer18k—~3.3kAutomated safety check: PassNone
Lancedb Update Lance Dependencylancedb/lancedb12k—~1.1kAutomated safety check: PassApache-2.0
Java SDK E2E Test with Replay Snapshotgithub/copilot-sdk11k—~1.8kAutomated safety check: PassMIT

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Works with

Questions about 401 Frameworks Quarkus Core

What does 401 Frameworks Quarkus Core do?

A skill your agent uses when building or reviewing core Quarkus applications with CDI beans and scopes, SmallRye Config and profiles, lifecycle, interceptors and events, virtual threads, and…. 401 Frameworks Quarkus Core is an agent skill from jabrena/plinth. Use when building or reviewing core Quarkus applications with CDI beans and scopes, SmallRye Config and profiles, lifecycle, interceptors and events, virtual threads, and test-friendly design.

When should I use 401 Frameworks Quarkus Core?

401 Frameworks Quarkus Core fits situations like: reviewing core Quarkus applications with CDI beans and scopes; smallRye Config and profiles; interceptors and events; virtual threads.

How do I install 401 Frameworks Quarkus Core in Claude Code?

Run `npx skills add jabrena/plinth --skill 401-frameworks-quarkus-core -a claude-code`. Or copy the skill folder (skills/401-frameworks-quarkus-core in jabrena/plinth) into .claude/skills/401-frameworks-quarkus-core in your project. Claude Code loads it when a task matches its description.

How do I install 401 Frameworks Quarkus Core in Codex?

Run `npx skills add jabrena/plinth --skill 401-frameworks-quarkus-core -a codex`. Or copy the skill folder (skills/401-frameworks-quarkus-core in jabrena/plinth) into .agents/skills/401-frameworks-quarkus-core in your project. Codex loads it when a task matches its description.

Can I use 401 Frameworks Quarkus Core 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 jabrena/plinth --skill 401-frameworks-quarkus-core -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/401-frameworks-quarkus-core, .gemini/skills/401-frameworks-quarkus-core, .github/skills/401-frameworks-quarkus-core and .opencode/skills/401-frameworks-quarkus-core in your project.

What does 401 Frameworks Quarkus Core need to run?

Going by SKILL.md and its folder, 401 Frameworks Quarkus Core needs the command-line tools its instructions call (mvn).

Does 401 Frameworks Quarkus Core 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 401 Frameworks Quarkus Core 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 401 Frameworks Quarkus Core use?

401 Frameworks Quarkus Core is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does 401 Frameworks Quarkus Core use?

About 887 tokens (SKILL.md is roughly 3.5k 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 6.6k tokens, read only when the agent opens those files.

What are the alternatives to 401 Frameworks Quarkus Core?

Skills that share tags, products or a category with 401 Frameworks Quarkus Core: Brainstorming (xpinjection/test-driven-spring-boot, 112 stars), Android API Diff (gkd-kit/gkd, 43k stars), Video Cover Image (itwanger/toBeBetterJavaer, 18k stars) and Lancedb Update Lance Dependency (lancedb/lancedb, 12k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains 401 Frameworks Quarkus Core?

jabrena (a GitHub user) maintains it in jabrena/plinth, which has 447 GitHub stars. The repository holds 124 skills in this directory. The repository was last updated on October 7, 2026.

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