OpenClaw Nextcloud Skill

This skill provides integration with a Nextcloud instance. It supports access to Notes, Tasks (Todos), Calendars, Files, and Contacts.

Configuration

The skill requires the following environment variables:

• - NEXTCLOUD_URL: The base URL of your Nextcloud instance (e.g., https://cloud.example.com).
• INLINECODE2: Your Nextcloud username.
• INLINECODE3: An App Password (recommended) or your login password.

Features

1. Notes (Read/Write)

• - List, get, create, update, and delete notes.
• API: INLINECODE4

2. Tasks / Todos (Read/Write)

• - List, create, update, delete, and complete tasks.
• API: CalDAV (VTODO).

3. Calendar (Read/Write)

• - List, create, update, and delete events.
• API: CalDAV (VEVENT).

4. Files (Read/Write)

• - List, search, upload, download, and delete files.
• API: WebDAV.

5. Contacts (Read/Write)

• - List, get, create, update, delete, and search contacts.
• API: CardDAV.

Usage

Run the skill via the bundled script.

CODEBLOCK0

Commands

Notes

• - INLINECODE5
• INLINECODE6
• INLINECODE7
• INLINECODE8
• INLINECODE9

Tasks

• - INLINECODE10
• INLINECODE11
• INLINECODE12
• INLINECODE13
• INLINECODE14

Calendar Events

• - calendar list [--from <iso>] [--to <iso>] (Defaults to next 7 days)
• INLINECODE16
• INLINECODE17
• INLINECODE18

Calendars (list available calendars)

• - INLINECODE19

Files

• - INLINECODE20
• INLINECODE21
• INLINECODE22 (download file content)
• INLINECODE23
• INLINECODE24

Contacts

• - INLINECODE25
• INLINECODE26
• INLINECODE27
• INLINECODE28
• INLINECODE29
• INLINECODE30

Address Books (list available address books)

• - INLINECODE31

Output Format

All outputs are JSON formatted.

Tasks List Output

{
  "status": "success",
  "data": [
    {
      "uid": "unique-task-id",
      "calendar": "Calendar Name",
      "summary": "Task title",
      "status": "NEEDS-ACTION",
      "due": "20260201T153000Z",
      "priority": 0
    }
  ]
}

• - due: CalDAV format date (YYYYMMDDTHHmmssZ) or null
• INLINECODE33: 0-9 (0 = undefined, 1 = highest, 9 = lowest) or null

Calendar Events List Output

CODEBLOCK2

Contacts List Output

{
  "status": "success",
  "data": [
    {
      "uid": "unique-contact-id",
      "addressBook": "Address Book Name",
      "fullName": "John Doe",
      "name": "Doe;John;;;",
      "phones": ["+1234567890"],
      "emails": ["john@example.com"],
      "organization": "ACME Inc",
      "title": "Developer",
      "note": "Met at conference"
    }
  ]
}

• - phones: Array of phone numbers or null
• INLINECODE35: Array of email addresses or null
• INLINECODE36: Structured name in vCard format (Last;First;Middle;Prefix;Suffix)

General Format

CODEBLOCK4

or

CODEBLOCK5

Agent Behavior: Default Calendar Selection

When creating tasks or calendar events, if the user does not specify a calendar:

1. 1. First time (no default set):

- Run calendars list --type tasks (for tasks) or calendars list --type events (for events) - Ask the user which calendar to use from the list - Ask if they want to set it as the default for future operations - Remember their choice in memory

1. 2. If user sets a default:

- Remember default_task_calendar and/or default_event_calendar - Use automatically for subsequent operations without asking

1. 3. If user declines to set a default:

- Ask again next time they create a task/event without specifying a calendar

1. 4. User can always override:

- Explicitly specifying --calendar always takes precedence over the default

Memory Keys

• - default_task_calendar: Default calendar name for tasks (VTODO)
• INLINECODE43: Default calendar name for events (VEVENT)

Agent Behavior: Default Address Book Selection

When creating contacts, if the user does not specify an address book:

1. 1. First time (no default set):

- Run addressbooks list - Ask the user which address book to use from the list - Ask if they want to set it as the default for future operations - Remember their choice in memory

1. 2. If user sets a default:

- Remember default_addressbook - Use automatically for subsequent operations without asking

1. 3. If user declines to set a default:

- Ask again next time they create a contact without specifying an address book

1. 4. User can always override:

- Explicitly specifying --addressbook always takes precedence over the default

Memory Keys

• - default_addressbook: Default address book name for contacts

Agent Behavior: Presenting Information

When displaying data to the user, format it in a readable way. Output may be sent to messaging platforms (Telegram, WhatsApp, etc.) where markdown does not render, so avoid markdown formatting.

General Guidelines

• - Use emojis to make output scannable and friendly
• Do NOT use markdown formatting (no bold, italic, code, tables, or lists with - or *)
• Use plain text with line breaks for structure
• Convert technical formats (like CalDAV dates) to human-readable formats
• Group related items logically

Emoji Reference

Tasks: ✅ (completed), ⬜ (pending), 🔴 (high priority), 🟡 (medium), 🟢 (low) Calendar: 📅 (event), ⏰ (time), 📍 (location) Notes: 📝 (note), 📁 (category) Files: 📄 (file), 📂 (folder), 💾 (size) Contacts: 👤 (person), 📧 (email), 📱 (phone), 🏢 (organization) Status: ✨ (created), ✏️ (updated), 🗑️ (deleted), ❌ (error)

Example Presentations

Tasks:
CODEBLOCK6

Calendar Events:
CODEBLOCK7

Contacts:
CODEBLOCK8

Files:
CODEBLOCK9

Date/Time Formatting

Convert CalDAV format 20260205T100000Z to readable format like Wed, Feb 5 • 10:00 AM Show relative dates when helpful: "Tomorrow", "Next Monday", "In 3 days" Use the user's local timezone when possible