Agent skill

Grails Test Fixer

Guides running, reviewing and fixing test failures across grails-core modules with Gradle, including targeted runs and the aggregate HTML and Markdown reports.

Apache-2.0Auto-check passedTesting & QA

Install Grails Test Fixer

skills CLI

$ npx skills add apache/grails-core --skill test-fixer -a claude-code

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

GitHub CLI

$ gh skill install apache/grails-core test-fixer --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/apache/grails-core.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/test-fixer .claude/skills/test-fixer && 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 "test-fixer" agent skill from https://github.com/apache/grails-core/tree/8.0.x/.agents/skills/test-fixer into .claude/skills/test-fixer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-fixer", 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/apache/grails-core/tree/8.0.x/.agents/skills/test-fixer

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 apache/grails-core --skill test-fixer -a codex

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

GitHub CLI

$ gh skill install apache/grails-core test-fixer --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/apache/grails-core.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/test-fixer .agents/skills/test-fixer && 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 "test-fixer" agent skill from https://github.com/apache/grails-core/tree/8.0.x/.agents/skills/test-fixer into .agents/skills/test-fixer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-fixer", 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 apache/grails-core --skill test-fixer -a cursor

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

GitHub CLI

$ gh skill install apache/grails-core test-fixer --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/apache/grails-core.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/test-fixer .cursor/skills/test-fixer && 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 "test-fixer" agent skill from https://github.com/apache/grails-core/tree/8.0.x/.agents/skills/test-fixer into .cursor/skills/test-fixer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-fixer", 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/apache/grails-core.git --path .agents/skills/test-fixer

--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 apache/grails-core --skill test-fixer -a gemini-cli

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

GitHub CLI

$ gh skill install apache/grails-core test-fixer --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/apache/grails-core.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/test-fixer .gemini/skills/test-fixer && 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 "test-fixer" agent skill from https://github.com/apache/grails-core/tree/8.0.x/.agents/skills/test-fixer into .gemini/skills/test-fixer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-fixer", 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 apache/grails-core test-fixer

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 apache/grails-core --skill test-fixer -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/apache/grails-core.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/test-fixer .github/skills/test-fixer && 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 "test-fixer" agent skill from https://github.com/apache/grails-core/tree/8.0.x/.agents/skills/test-fixer into .github/skills/test-fixer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-fixer", 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 apache/grails-core --skill test-fixer -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 apache/grails-core test-fixer --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/apache/grails-core.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/test-fixer .opencode/skills/test-fixer && 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 "test-fixer" agent skill from https://github.com/apache/grails-core/tree/8.0.x/.agents/skills/test-fixer into .opencode/skills/test-fixer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-fixer", 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: test-fixer
GitHub stars: 2.9k
Token cost: ~1.1k tokens
SKILL.md length: 369 words
Files: 1
Skills in repo: 9
Repo updated: Oct 7, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Guides running, reviewing and fixing test failures across grails-core modules with Gradle, including targeted runs and the aggregate HTML and Markdown reports.

Running a single failing spec or module in grails-core
SKILL.md covers What I Do, When to Use Me, Key Tasks and Aggregate Test Reports, plus 5 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
Verifying affected module tests before a commit

What it does

The skill helps the agent run tests in grails-core efficiently. Targeted runs use a Gradle module path with a --tests filter to save time, full runs use ./gradlew test --continue so later modules still run after an earlier failure, and a single module can be run by its own task path. It names the unit source set under src/test/groovy and the integration source set under src/integration-test/groovy.

Aggregation lives in the grails-test-report project: running its check task with --continue produces unit, integration and combined reports in both HTML and Markdown under grails-test-report/build/reports/tests. Reports summarize whatever XML results exist on disk, so a full run without --continue can be partial, and stale results are cleared by running clean first. The skill also helps triage failing specs, static state pollution and regressions after a dependency upgrade or refactor.

When your agent uses it

Running a single failing spec or module in grails-core
Verifying affected module tests before a commit
Triaging regressions after a dependency upgrade or refactor
Reading the aggregate test report from grails-test-report

Example prompts

“Run only the BasicCollection tests in the hibernate7 core module and tell me what fails.”
“Run the full suite with --continue and summarize the combined Markdown report.”
“Find out whether this spec failure comes from static state left behind by another test.”

Requirements

A grails-core checkout with the Gradle wrapper

What it can do on your machine

Read from SKILL.md and the folder at commit 3d6db18. 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 (its code samples are bash).
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

Grails Test Fixer loads about 1.1k tokens when it runs. Until then it costs about 30 tokens; SKILL.md has 369 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~30
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k

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 apache/grails-core at commit 3d6db18, republished under its Apache-2.0 licence (© apache). 369 words, ~1,128 tokens.

Download SKILL.mdSave it as .claude/skills/test-fixer/SKILL.md (or your agent's skills folder).

name: test-fixer
description: Guide for running, reviewing, and fixing test failures across grails-core modules using Gradle test reports
license: Apache-2.0

<!--
SPDX-License-Identifier: Apache-2.0

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements; and to You under the Apache License, Version 2.0.
-->

What I Do

Guide targeted and full test runs across grails-core modules.
Help interpret Gradle HTML and XML test reports.
Help triage failing specs, static state pollution, and module-specific regressions.

When to Use Me

Activate this skill when:

Running a failing module or specific spec.
Preparing a commit and verifying affected module tests.
Triaging regressions after a dependency upgrade or refactor.
Reviewing aggregate test results from :grails-test-report.

Key Tasks

Targeted Testing Recommended

To save time, run only related tests:

bash

./gradlew :grails-data-hibernate7-core:test --tests "grails.gorm.tests.BasicCollection*"

Full Run

bash

./gradlew test --continue

Use --continue when you need later modules to run after an earlier module fails.

Aggregate Test Reports

The grails-test-report project owns repository test aggregation.

bash

./gradlew :grails-test-report:check --continue

This generates:

Unit HTML: grails-test-report/build/reports/tests/test/index.html
Unit Markdown: grails-test-report/build/reports/tests/test.md
Integration HTML: grails-test-report/build/reports/tests/integrationTest/index.html
Integration Markdown: grails-test-report/build/reports/tests/integrationTest.md
Combined HTML: grails-test-report/build/reports/tests/combined/index.html
Combined Markdown: grails-test-report/build/reports/tests/combined.md

The aggregate report includes root subprojects that define matching test or integrationTest tasks.

The collected unit and integration Test tasks are finalized by their matching aggregate report tasks. Reports are attempted after failures and after targeted module test runs, but they summarize the XML results currently available on disk. Use --continue for full-suite runs so Gradle keeps scheduling later test tasks after an earlier failure; without it, reports can be partial. Run clean first when stale XML results should be excluded.

Running Tests for a Specific Module

bash

# All tests in a module
./gradlew :grails-data-hibernate7-dbmigration:test

# A specific spec
./gradlew :grails-data-hibernate7-dbmigration:test \
  --tests "org.grails.plugins.databasemigration.command.DbmGenerateGormChangelogCommandSpec"

# A specific feature method
./gradlew :grails-data-hibernate7-core:test \
  --tests "org.grails.orm.hibernate.FooSpec.my feature name"

# Force rerun even if Gradle thinks it is up-to-date
./gradlew :grails-data-hibernate7-core:test --rerun-tasks

Show full SKILL.md (157 more words)Show less

Test Source Layout

Source set	Directory	Task
Unit tests	`src/test/groovy/`	`test`
Integration tests	`src/integration-test/groovy/`	`integrationTest`

Most specs in grails-core are unit tests (src/test/groovy/) run by the test task. A small number of modules use integrationTest for full Spring context tests.

Parallel Test Execution

Tests run in parallel (maxParallelForks defaults to 4 on CI and to availableProcessors * 3/4 otherwise; override with -PmaxTestParallel). This can cause:

Static state pollution: one test mutating a static field that another test reads.
Port conflicts: multiple test JVMs binding the same port.
@Shared field contamination: shared state not properly cleaned up between feature methods.

To diagnose flaky failures, rerun with forced serial execution:

bash

./gradlew :module:test -PmaxTestParallel=1 --rerun-tasks

Test Configuration Flags

Property	Effect
`skipTests`	Skips all `Test` tasks (build only)
`maxTestParallel=N`	Override parallel fork count
`onlyFunctionalTests`	Run only functional test suites
`skipHibernate7Tests`	Skip H7-specific test suites
`onlyMongodbTests`	Run only MongoDB test suites
`onlyCoreTests`	Run only core module tests

XML Report Location

Gradle writes JUnit XML test results to:

text

<module>/build/test-results/
├── test/
│   └── TEST-org.grails.SomeSpec.xml
└── integrationTest/
    └── TEST-org.grails.SomeIntegrationSpec.xml

Files

Just SKILL.md in .agents/skills/test-fixer of apache/grails-core.

Open the folder on GitHubat commit 3d6db18

Compare with similar skills

Grails Test Fixer 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.

Grails Test Fixer compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Grails Test Fixer this skillapache/grails-core	2.9k	—	~1.1k	Automated safety check: Pass	Apache-2.0	today
Designing TestsCloudAI-X/claude-workflow-v2	1.4k	1 repos	~1.5k	Automated safety check: Pass	MIT	yesterday
Temporal Python Testingwshobson/agents	40k	11 repos	~1.2k	Automated safety check: Pass	MIT	2 days ago
Testingredis/RedisInsight	8.9k	—	~3.3k	Automated safety check: Pass	Custom licence	2 days ago
Run Testsrunceel/ReactiveProperty	944	—	~3.6k	Automated safety check: Pass	MIT	1 mo ago
Flutter TestingMADTeacher/mad-agents-skills	110	—	~1.5k	Automated safety check: Pass	MIT	5 mo ago

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Questions about Grails Test Fixer

What does Grails Test Fixer do?

Guides running, reviewing and fixing test failures across grails-core modules with Gradle, including targeted runs and the aggregate HTML and Markdown reports. The skill helps the agent run tests in grails-core efficiently./gradlew test --continue so later modules still run after an earlier failure, and a single module can be run by its own task path.

When should I use Grails Test Fixer?

Grails Test Fixer fits situations like: running a single failing spec or module in grails-core; verifying affected module tests before a commit; triaging regressions after a dependency upgrade or refactor; reading the aggregate test report from grails-test-report.

How do I install Grails Test Fixer in Claude Code?

Run `npx skills add apache/grails-core --skill test-fixer -a claude-code`. Or copy the skill folder (.agents/skills/test-fixer in apache/grails-core) into .claude/skills/test-fixer in your project. Claude Code loads it when a task matches its description.

How do I install Grails Test Fixer in Codex?

Run `npx skills add apache/grails-core --skill test-fixer -a codex`. Or copy the skill folder (.agents/skills/test-fixer in apache/grails-core) into .agents/skills/test-fixer in your project. Codex loads it when a task matches its description.

Can I use Grails Test Fixer 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 apache/grails-core --skill test-fixer -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-fixer, .gemini/skills/test-fixer, .github/skills/test-fixer and .opencode/skills/test-fixer in your project.

What does Grails Test Fixer need to run?

SKILL.md names no scripts, command-line tools or credentials: Grails Test Fixer is instructions for the agent only. Our summary lists: A grails-core checkout with the Gradle wrapper.

Does Grails Test Fixer 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 Grails Test Fixer 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 Grails Test Fixer use?

Grails Test Fixer 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 Grails Test Fixer use?

About 1.1k tokens (SKILL.md is roughly 4.5k 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 Grails Test Fixer?

Skills that share tags, products or a category with Grails Test Fixer: Designing Tests (CloudAI-X/claude-workflow-v2, 1.4k stars), Temporal Python Testing (wshobson/agents, 40k stars), Testing (redis/RedisInsight, 8.9k stars) and Run Tests (runceel/ReactiveProperty, 944 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Grails Test Fixer?

apache (a GitHub organization) maintains it in apache/grails-core, which has 2,934 GitHub stars. The repository holds 9 skills in this directory. The repository was last updated on October 7, 2026.

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

Install Grails Test Fixer

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

What I Do

When to Use Me

Key Tasks

Targeted Testing Recommended

Full Run

Aggregate Test Reports

Running Tests for a Specific Module

Test Source Layout

Parallel Test Execution

Test Configuration Flags

XML Report Location

Files

Compare with similar skills

Similar skills

More from apache/grails-core

Related

Questions about Grails Test Fixer