Contacts Management

This handles multi-channel contact management where one person can have SMS, WhatsApp, email, Telegram, and voice channels all tied to a single contact record. You get auto-creation when messaging new recipients, manual CRUD for contacts and their channels, and merge suggestions when duplicates show up. The phone introspection feature is handy: validates numbers, returns carrier info, and tells you which channels are available for that number. Supports TypeScript, Python, Go, Ruby, and PHP. The multi-channel model makes sense if you're building a platform that needs to reach people across different messaging systems without creating duplicate contact records.

skills.sh installs: 396
GitHub stars: 1
last updated: Aug 21, 2026

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Install

$ npx -y skills add zavudev/zavu-skills --skill contacts-management --agent claude-code

Installs into .claude/skills of the current project.

Files

Contacts Management

When to Use

Use this skill when building code to create, update, or manage contacts and their communication channels. Covers the multi-channel contact model, search, merge operations, phone number introspection, and email address validation.

Contact Model

Contacts are multi-channel: one contact can have multiple channels (SMS, WhatsApp, Email, Telegram, Instagram, Messenger, Voice), each with its own identifier and delivery metrics. Top-level fields expose primary identifiers for quick access.

Contact (John Doe)
├── primaryPhone: +14155551234           (E.164)
├── primaryEmail: john@example.com
├── profileName: "John D."               (WhatsApp profile name, if available)
├── verified: true
├── countryCode: "US"
└── Channels:
    ├── SMS: +14155551234 (primary)
    ├── WhatsApp: +14155551234 (primary)
    ├── Email: john@example.com (primary)
    ├── Email: john.work@company.com (label: "work")
    ├── Telegram: @johndoe
    └── Voice: +14155551234