Normalize International Phone Numbers Into E164 Before CRM Impor

Q: What is a Claude Code skill and how does the Normalize International Phone Numbers Into E164 Before CRM Impor 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. Normalize International Phone Numbers Into E164 Before CRM Impor is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Sales category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Sales · Sub-category: crm-systems · Last updated: 2026-05-21

Use libphonenumber-js when an agent needs to clean messy phone-number input, validate it against country rules, and return a stable E.164 value before storing contacts or triggering downstream messaging. The skill is about normalization and validation, not telephony delivery, call routing, or campaign orchestration.

About this skill (catalog notes)

Normalize International Phone Numbers Into E164 Before CRM Impor includes a dedicated installation section; at least one code block.

Source: agentskillexchange.com/skills/normalize-international-phone-…
Original author: catamphetamine
Indexed lastmod: 2026-05-21
Catalog position: Sales · crm-systems
Indexed related skills: 10

How Normalize International Phone Numbers Into E164 Before CRM Impor fits the catalog

Normalize International Phone Numbers Into E164 Before CRM Impor sits in the Sales category under the crm-systems 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

What this skill does

Normalize International Phone Numbers Into E164 Before CRM Impor is a community-contributed Claude Code skill in the crm-systems sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/normalize-international-phone-numbers-into-e164-before-crm-impor/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Normalize International Phone Numbers Into E164 Before CRM Impor Claude Code skill is built for sales development reps, account executives, revenue operations teams, and customer success managers. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ 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/normalize-international-phone-numbers-into-e164-before-crm-impor
curl -L https://claudskills.com/skills/normalize-international-phone-numbers-into-e164-before-crm-impor/SKILL.md \
  -o ~/.claude/skills/normalize-international-phone-numbers-into-e164-before-crm-impor/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/normalize-international-phone-numbers-into-e164-before-crm-impor/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/normalize-international-phone-numbers-into-e164-before-crm-impor/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\normalize-international-phone-numbers-into-e164-before-crm-impor\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 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.

See pricing → Download desktop app

Frequently asked questions

How do I install the Normalize International Phone Numbers Into E164 Before CRM Impor Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/normalize-international-phone-numbers-into-e164-before-crm-impor/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Normalize International Phone Numbers Into E164 Before CRM Impor skill do?

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 Normalize International Phone Numbers Into E164 Before CRM Impor skill?

Use Normalize International Phone Numbers Into E164 Before CRM Impor when your Claude Code task falls under the Sales category — specifically in the crm systems 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 Normalize International Phone Numbers Into E164 Before CRM Impor" or describe the task and let Claude pick). Browse related skills at /category/sales/.

What is a Claude Code skill and how does the Normalize International Phone Numbers Into E164 Before CRM Impor 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. Normalize International Phone Numbers Into E164 Before CRM Impor is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Sales category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Source: https://www.npmjs.com/package/libphonenumber-js
Author: catamphetamine
Website: https://agentskillexchange.com/skills/normalize-international-phone-numbers-into-e164-before-crm-imports-or-messaging-workflows

Cite this skill

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

APA

catamphetamine. (2026). Normalize International Phone Numbers Into E164 Before CRM Impor [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/normalize-international-phone-numbers-into-e164-before-crm-impor/

BibTeX

@misc{normalize-international-phone-numbers-into-e164-before-crm-impor-2026,
  author    = {catamphetamine},
  title     = {Normalize International Phone Numbers Into E164 Before CRM Impor [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/normalize-international-phone-numbers-into-e164-before-crm-impor/}
}

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