New: 98,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

126 Java Exception Handling

by jabrena in jabrena/plinth

A skill your agent uses when you need to apply Java exception handling best practices — including using specific exception types, managing resources with try-with-resources, securing exception…

Apache-2.0Auto-check passedDevelopment

Install 126 Java Exception Handling

skills CLI
$ npx skills add jabrena/plinth --skill 126-java-exception-handling -a claude-code

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

GitHub CLI
$ gh skill install jabrena/plinth 126-java-exception-handling --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/126-java-exception-handling .claude/skills/126-java-exception-handling && 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
126-java-exception-handling
GitHub stars
446
Token cost
~946 tokens
SKILL.md length
322 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 you need to apply Java exception handling best practices — including using specific exception types, managing resources with try-with-resources, securing exception…

  • You need to apply Java exception handling best practices — including using specific exception types
  • SKILL.md covers Constraints, When to use this skill, Workflow and Reference
  • Calls mvn
  • Managing resources with try-with-resources

What it does

126 Java Exception Handling is an agent skill from jabrena/plinth. Use when you need to apply Java exception handling best practices — including using specific exception types, managing resources with try-with-resources, securing exception messages, preserving error context via exception chaining, validating inputs early with fail-fast principles, handling thread interruption correctly, documenting exceptions with @throws, enforcing logging policy, translating exceptions at API boundaries, managing retries and idempotency, enforcing timeouts, attaching suppressed exceptions, and…

Its SKILL.md is about 950 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/126-java-exception-handling.md`).

It sits in Development, covering Error handling and Translation. 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

  • You need to apply Java exception handling best practices — including using specific exception types
  • Managing resources with try-with-resources
  • Securing exception messages
  • Preserving error context via exception chaining

Example prompts

  • “/126-java-exception-handling”

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

126 Java Exception Handling loads about 946 tokens when it runs, and up to ~25k if it reads all its reference files. Until then it costs about 210 tokens; SKILL.md has 322 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~210
When it runs · the whole SKILL.md, loaded when a task matches
~946
With references · SKILL.md plus every file in references/, read only if the agent opens them
~25k

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). 322 words, ~946 tokens.

Download SKILL.mdSave it as .claude/skills/126-java-exception-handling/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
126-java-exception-handling
description
Use when you need to apply Java exception handling best practices — including using specific exception types, managing resources with try-with-resources, securing exception messages, preserving error context via exception chaining, validating inputs early with fail-fast principles, handling thread interruption correctly, documenting exceptions with @throws, enforcing logging policy, translating exceptions at API boundaries, managing retries and idempotency, enforcing timeouts, attaching suppressed exceptions, and propagating failures in async/reactive code. This should trigger for requests such as Exception handling; Use try-with-resources in Java code; Create exception chaining in Java code; Apply fail-fast validation in Java code; Review Java exception taxonomy and propagation. Part of Plinth Toolkit
license
Apache-2.0
metadata.author
Juan Antonio Breña Moral
metadata.version
0.19.0

Java Exception Handling Guidelines

Identify and apply robust Java exception handling practices to improve error clarity, security, debuggability, and system reliability.

What is covered in this Skill?

  • Specific exception types instead of generic Exception/RuntimeException
  • try-with-resources for automatic resource cleanup
  • Secure exception messages that avoid information leakage
  • Exception chaining to preserve full error context
  • Early input validation with IllegalArgumentException/NullPointerException
  • InterruptedException handling with interrupted-status restoration
  • @throws JavaDoc documentation, fail-fast principle
  • Structured logging with correlation IDs, avoiding log-and-throw duplication
  • API boundary translation via centralized exception mappers
  • Bounded retry with backoff for idempotent operations only
  • Timeout enforcement with deadline propagation
  • Throwable#addSuppressed for secondary cleanup failures
  • Never catching Throwable/Error
  • Observability via error metrics
  • Failure propagation in async CompletionStage code

Scope: The reference is organized by examples (good/bad code patterns) for each core area. Apply recommendations based on applicable examples.

Constraints

Before applying any exception handling changes, ensure the project compiles. If compilation fails, stop immediately — do not proceed until resolved. After applying improvements, run full verification.

  • MANDATORY: Run ./mvnw compile or mvn compile before applying any changes
  • SAFETY: If compilation fails, stop immediately — do not proceed until the project is in a valid state
  • VERIFY: Run ./mvnw clean verify or mvn clean verify after applying improvements
  • BEFORE APPLYING: Read the reference for detailed good/bad examples, constraints, and safeguards for each exception handling pattern

When to use this skill

  • Exception handling
  • Use try-with-resources in Java code
  • Create exception chaining in Java code
  • Apply fail-fast validation in Java code
  • Review Java exception taxonomy and propagation

Workflow

  1. Compile project before exception-handling changes

Run ./mvnw compile or mvn compile and stop immediately if compilation fails.

  1. Read exception-handling reference

Read references/126-java-exception-handling.md and identify applicable failure-handling and observability improvements.

  1. Apply exception-handling improvements

Refactor to specific exceptions, safe resource handling, error translation, and consistent logging patterns.

  1. Verify with full build

Run ./mvnw clean verify or mvn clean verify after applying improvements.

Reference

For detailed guidance, examples, and constraints, see references/126-java-exception-handling.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/126-java-exception-handling of jabrena/plinth.

  • SKILL.md
  • references/126-java-exception-handling.md

Open the folder on GitHubat commit dca88dc

Compare with similar skills

126 Java Exception Handling 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.

126 Java Exception Handling compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
126 Java Exception Handling this skilljabrena/plinth446—~946Automated safety check: PassApache-2.0
Cross-Language Coding Standardszereight/gitlab-mcp2k1 repos~1.4kAutomated safety check: PassMIT
Code Qualitypiomin/claude-ai-spring-boot1.3k—~2.2kAutomated safety check: PassApache-2.0
Java Code Reviewdecebals/claude-code-java751—~2.5kAutomated safety check: PassMIT
Databricks Zerobus Ingestdatabricks/databricks-agent-skills345—~3.1kAutomated safety check: PassCustom licence
Mole Bug Patternstw93/Mole70k—~2kAutomated safety check: PassGPL-3.0

Similar skills

  • Cross-Language Coding Standards

    zereight/gitlab-mcp

    Shared reference for naming, function size, complexity and error handling rules that reviewer agents apply across TypeScript, Python, Go, Rust, Java, C# and Swift.

    2k GitHub starsUsed in 1 repo~1.4k tokens
    DevelopmentAuto-check passed

  • Code Quality

    piomin/claude-ai-spring-boot

    Comprehensive code review for Java - clean code principles, API contracts, null safety, exception handling, and performance.

    1.3k GitHub stars~2.2k tokensUpdated 5 mo ago
    DevelopmentAuto-check passed

  • Java Code Review

    decebals/claude-code-java

    Checklist-driven review of Java code covering null safety, exception handling, collections and streams, and concurrency, with findings reported by severity.

    751 GitHub stars~2.5k tokensUpdated 1 mo ago
    DevelopmentAuto-check passed

  • Databricks Zerobus Ingest

    databricks/databricks-agent-skills

    Official

    Build Zerobus Ingest clients for near real-time data ingestion into Databricks Delta tables via gRPC.

    345 GitHub stars~3.1k tokensUpdated today
    Backend & APIsAuto-check passed

  • Mole Bug Patterns

    tw93/Mole

    A catalog of recurring bug shapes in the Mole Mac cleaner, used to review safety-sensitive diffs for deletion safety, unbounded commands, shell traps and weak tests.

    70k GitHub stars~2k tokensUpdated today
    DevelopmentAuto-check passed

  • Native Data Fetching

    CherryHQ/cherry-studio-app

    A skill your agent uses when implementing or debugging ANY network request, API call, or data fetching.

    4k GitHub starsUsed in 6 repos~2.9k tokens
    DevelopmentAuto-check: notes

More from jabrena/plinth

All 124 skills in this repo

  • 703 Technologies Fuzzing Testing

    jabrena/plinth

    A skill your agent uses when you need to add or review fuzz testing for Java APIs with CATS — including contract-driven negative testing, malformed payload validation, boundary input exploration, CI…

    446 GitHub stars~874 tokensUpdated today
    Auto-check passed

  • 033 Architecture Diagrams

    jabrena/plinth

    A skill your agent uses when you need to generate Java project diagrams — including UML sequence diagrams, UML class diagrams, C4 model diagrams, UML state machine diagrams, UML Deployment Diagrams…

    446 GitHub stars~3.1k tokensUpdated today
    Auto-check passed

  • 112 Java Maven Plugins

    jabrena/plinth

    A skill your agent uses when you need to add or configure Maven plugins in your pom.xml — including quality tools (enforcer, surefire, failsafe, jacoco, pitest, spotbugs, pmd), security scanning…

    446 GitHub stars~3.2k tokensUpdated today
    Auto-check passed

  • 151 Java Performance Jmeter

    jabrena/plinth

    A skill your agent uses when you need to set up JMeter performance testing for a Java project — including creating the run-jmeter.sh script from the exact template, configuring load tests with…

    446 GitHub stars~842 tokensUpdated today
    Auto-check passed

  • 161 Java Profiling Detect

    jabrena/plinth

    A skill your agent uses when you need to set up Java application profiling to detect and measure performance issues — including trusted preinstalled async-profiler v4.x setup, problem-driven…

    446 GitHub stars~903 tokensUpdated today
    Auto-check passed

  • 001 Commands Inventory

    jabrena/plinth

    A skill your agent uses when you need to generate a checklist document with embedded commands inventory, following the embedded template exactly and producing INVENTORY-COMMANDS-JAVA.md in the…

    446 GitHub stars~697 tokensUpdated today
    Auto-check passed

Works with

Categories

Questions about 126 Java Exception Handling

What does 126 Java Exception Handling do?

A skill your agent uses when you need to apply Java exception handling best practices — including using specific exception types, managing resources with try-with-resources, securing exception…. 126 Java Exception Handling is an agent skill from jabrena/plinth.

When should I use 126 Java Exception Handling?

126 Java Exception Handling fits situations like: you need to apply Java exception handling best practices — including using specific exception types; managing resources with try-with-resources; securing exception messages; preserving error context via exception chaining.

How do I install 126 Java Exception Handling in Claude Code?

Run `npx skills add jabrena/plinth --skill 126-java-exception-handling -a claude-code`. Or copy the skill folder (skills/126-java-exception-handling in jabrena/plinth) into .claude/skills/126-java-exception-handling in your project. Claude Code loads it when a task matches its description.

How do I install 126 Java Exception Handling in Codex?

Run `npx skills add jabrena/plinth --skill 126-java-exception-handling -a codex`. Or copy the skill folder (skills/126-java-exception-handling in jabrena/plinth) into .agents/skills/126-java-exception-handling in your project. Codex loads it when a task matches its description.

Can I use 126 Java Exception Handling 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 126-java-exception-handling -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/126-java-exception-handling, .gemini/skills/126-java-exception-handling, .github/skills/126-java-exception-handling and .opencode/skills/126-java-exception-handling in your project.

What does 126 Java Exception Handling need to run?

Going by SKILL.md and its folder, 126 Java Exception Handling needs the command-line tools its instructions call (mvn).

Does 126 Java Exception Handling 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 126 Java Exception Handling 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 126 Java Exception Handling use?

126 Java Exception Handling 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 126 Java Exception Handling use?

About 946 tokens (SKILL.md is roughly 3.8k 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 24k tokens, read only when the agent opens those files.

What are the alternatives to 126 Java Exception Handling?

Skills that share tags, products or a category with 126 Java Exception Handling: Cross-Language Coding Standards (zereight/gitlab-mcp, 2k stars), Code Quality (piomin/claude-ai-spring-boot, 1.3k stars), Java Code Review (decebals/claude-code-java, 751 stars) and Databricks Zerobus Ingest (databricks/databricks-agent-skills, 345 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains 126 Java Exception Handling?

jabrena (a GitHub user) maintains it in jabrena/plinth, which has 446 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.