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Apex Regex And Pattern Matching

Category: Engineering  ·  Sub-category: mobile  ·  Last updated:
lang:javascript
Use when writing Apex that validates, extracts, or transforms strings with Pattern/Matcher or String regex methods. Covers catastrophic backtracking, 1M char input cap, anchored vs unanchored matching, and replaceAll reserved `$`/`\\` chars. NOT for SOQL LIKE queries, Flow formula REGEX, or client-side JavaScript regex.

About this skill (catalog notes)

Apex Regex And Pattern Matching includes pricing or quota commentary; at least one code block. The SKILL.md runs to about 1,253 words, in the catalog's typical mid-range.

Original author
Pranav Nagrecha
Indexed lastmod
Catalog position
Engineering · mobile
Indexed related skills
10

How Apex Regex And Pattern Matching fits the catalog

Apex Regex And Pattern Matching sits in the Engineering category under the mobile sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

Activates when Apex code uses Pattern, Matcher, String.replaceAll, String.replaceFirst, String.split, or String.matches. Produces correct, performant, ReDoS-resistant regex with proper anchoring, escaping, and group handling.

What this skill does

Apex Regex And Pattern Matching is a community-contributed Claude Code skill in the mobile sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/apex-regex-and-pattern-matching/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when writing Apex that validates, extracts, or transforms strings with Pattern/Matcher or String regex methods. Covers catastrophic backtracking, 1M char input cap, anchored vs unanchored matching, and replaceAll reserved `$`/`\\` chars.

Who uses this skill

The Apex Regex And Pattern Matching Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 119,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/apex-regex-and-pattern-matching
curl -L https://claudskills.com/skills/apex-regex-and-pattern-matching/SKILL.md \
  -o ~/.claude/skills/apex-regex-and-pattern-matching/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/apex-regex-and-pattern-matching/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/apex-regex-and-pattern-matching/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\apex-regex-and-pattern-matching\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

Frequently asked questions

How do I install the Apex Regex And Pattern Matching Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/apex-regex-and-pattern-matching/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Apex Regex And Pattern Matching skill do?
Use when writing Apex that validates, extracts, or transforms strings with Pattern/Matcher or String regex methods. Covers catastrophic backtracking, 1M char input cap, anchored vs unanchored matching, and replaceAll reserved `$`/`\\` chars. NOT for SOQL LIKE queries, Flow formula REGEX, or client-side JavaScript regex.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Apex Regex And Pattern Matching skill?
Use Apex Regex And Pattern Matching when your Claude Code task falls under the Engineering category — specifically in the mobile area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Apex Regex And Pattern Matching" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Apex Regex And Pattern Matching skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Apex Regex And Pattern Matching is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
Pranav Nagrecha. (2026). Apex Regex And Pattern Matching [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/apex-regex-and-pattern-matching/
BibTeX
@misc{apex-regex-and-pattern-matching-2026,
  author    = {Pranav Nagrecha},
  title     = {Apex Regex And Pattern Matching [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/apex-regex-and-pattern-matching/}
}

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