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QualityJava

Format Source Add Rule

Format Source Add Rule is a Quality skill for Claude Code, published by liferay in liferay-portal.

2.3K stars3.8K forkson liferay/liferay-portalAdded 2026/07/20Repository updated 2026/08/03

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Install in seconds

Install Format Source Add Rule

Copy Format Source Add Rule into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/liferay/liferay-portal/tree/master/.claude/skills/format-source-add-rule ~/.claude/skills/format-source-add-rule

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/liferay/liferay-portal.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: .claude/skills/format-source-add-rule/SKILL.md in liferay/liferay-portal
Installs to: ~/.claude/skills/format-source-add-rule
Collection: One of 16 skills cataloged from this repository
Category: Quality — 1897 skills

What Format Source Add Rule does

Encode a formatting convention spotted in a Git commit into a reusable rule for the format-source skill. Use this to systematically add formatting rules for Java, properties, XML, and more.

Format Source Add Rule is cataloged under Quality on DirSkills.

Documentation

README

Excerpt

Format Source: Add Rule

Add a new rule to the format-source skill, derived from a Git commit. Anyone can use this to encode a convention they spotted in someone's commit. Rules can apply to any file type the source formatter handles — Java, .properties, XML, JSP, Markdown, Gradle, .gitignore, YAML, and so on. Do not bias toward Java.

Inputs

A Git commit SHA.
Optional: a hint about which aspect of the commit to encode. Commits often touch multiple things; a hint narrows the scope.

This is the opening of the README. Read the full README on GitHub.

Commands Format Source Add Rule provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

/format-source

Frequently asked about Format Source Add Rule

What else does liferay publish alongside Format Source Add Rule?
Format Source Add Rule is one of 16 skills that DirSkills catalogs from liferay/liferay-portal, the repository it ships in. Its siblings there include Create Pull Request, Format Source and Jira Bug. Each one is a separate skill with its own page in this directory, installs the same way Format Source Add Rule does, and is maintained by liferay in that same repository. The rest of the collection is listed on the liferay/liferay-portal page.
How does Format Source Add Rule compare to other Quality skills?
Format Source Add Rule ranks #545 by stars among the 1897 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Format Source Add Rule against them. Open each page to compare what they document and how they install.

More from liferay/liferay-portal

Format Source Add Rule is one of 16 skills cataloged on DirSkills from liferay/liferay-portal.

See all 16 skills →

Create Pull Request

Creates a pull request for the current branch, ensuring tests are added, running pre-checks, and linking and transitioning Jira tickets. Use when submitting code for review.

Format Source

Automatically format Java, JavaScript, and other source files to comply with Liferay's coding standards using built-in formatters and manual rules.

Jira Bug

Create a Jira bug ticket in the LPD project through the REST API. Use when the user asks to create or file a Jira bug or LPD ticket.

Jira Task

Creates a Jira task in the LPD project via REST API, inferring details from commit hashes or descriptions. Use when you need to create a Jira task or LPD ticket.

Liferay Portal Theme Design

Provides guidance on building and customizing themes and visual designs for Liferay Portal, including CSS, templates, and frontend assets.

MCP Server

Set up and troubleshoot Liferay MCP server, including CLI restart ordering, connection issues, and error diagnosis. Use when enabling MCP or handling tool call errors.

More Quality skills

Format Source Add Rule is one of 1897 Quality skills cataloged on DirSkills, ranked #545 by stars among them.

Browse all Quality skills →

Benchmark

Benchmark measures performance baselines, detects regressions before and after PRs, and compares stack alternatives for pages, APIs, and builds.

Benchmark Optimization Loop

Benchmark Optimization Loop turns vague performance goals into a bounded, measured optimization process. Use it when asked to make something faster, benchmark latency/throughput/cost, or choose the best implementation by repeated measured tests.

API Design Patterns

API Design Patterns provides conventions and best practices for designing consistent REST APIs. Use it when creating endpoints, reviewing contracts, handling pagination, error responses, status codes, filtering, or versioning.