Coline AI

Coline AI powers intelligent features throughout the platform. Three core AI products work together:

• Kairo: The AI agent you chat with
• Coline Tab: Intelligent autocomplete everywhere you type
• App AI: Smart features built into Calendar, Mail, Tasks, Boards, and more

Kairo

Kairo is Coline's AI agent. Chat with Kairo to get answers, take actions, and automate work.

Accessing Kairo

• Sidebar: Click the Coline icon in the main navigation
• Keyboard: Press Option+Space (macOS) to open the companion window
• URL: Navigate directly to /chat

Features

• Conversations: Chat about anything in your workspace
• Multi-model: Compare responses from different AI models side-by-side
• Web search: Search the web to answer questions
• Image generation: Generate images directly in chat
• File attachments: Upload files and images for analysis
• Tool execution: Create tasks, schedule events, draft emails, and more
• Reasoning display: See the thinking process for complex questions

Conversation history

All conversations are saved and searchable:

• Grouped by date (Today, Yesterday, Last Week)
• Search across all conversations
• Rename or delete conversations
• Continue previous conversations with full context

Coline Tab

Coline Tab is intelligent autocomplete that works everywhere you type in Coline. As you write, Tab suggests completions based on context.

How it works

1. Start typing in any text field
2. Coline Tab shows a grayed suggestion
3. Accept or dismiss with keyboard shortcuts

Keyboard shortcuts

Where it works

Coline Tab is available in:

• Email compose
• Note and document editors
• Task descriptions
• Board card descriptions
• Chat messages
• Any text input field

Context awareness

Coline Tab understands context:

• In emails, it considers the thread and recipients
• In notes, it follows your writing style
• In tasks, it matches your typical task format
• It learns from your writing patterns over time

Available models

Choose the right model for your task:

App AI features

Calendar autopilot

Automatically plan your day based on tasks and preferences.

Autopilot modes:

Energy presets:

• Early bird: Prioritizes morning for focused work
• Balanced: Distributes work throughout the day
• Night owl: Shifts focus blocks to evening hours

Daily digest:

Each morning, Coline generates a suggested schedule for your day:

1. Review the digest banner showing suggestion count
2. Click Review to see each suggestion with rationale
3. Use keyboard shortcuts: A to accept, X to dismiss, arrows to navigate
4. Click Apply Accepted to create calendar events
5. Click Replan to regenerate suggestions

Suggestions include confidence scores and explanations for why each time slot was chosen.

Mail

AI compose:

Generate complete email drafts from a brief prompt:

1. Click the AI button in the compose window
2. Describe what you want to write
3. Coline generates a draft considering:
   • Email subject and recipients
   • Previous thread messages for context
   • Your writing style

Grammar and style:

Real-time suggestions as you type:

• Grammar (red underline): Spelling and grammatical errors
• Style (blue): Clarity and conciseness improvements
• Tone (purple): Professional tone adjustments
• Clarity (amber): Readability suggestions

Hover over underlined text to see suggestions with explanations. Press Tab to accept or Escape to dismiss.

Subject line generation:

Click the AI button next to the subject field to generate a subject line based on your email content.

Thread summarization:

Long email threads show AI-generated summaries so you can catch up quickly.

Smart categorization:

Emails are automatically categorized:

• To respond
• FYI
• Comment
• Notification
• Promotion
• Meeting
• Billing

Toggle category display in mail settings.

Tasks

Coline AI enhances tasks automatically when you create or edit them:

Tag suggestions:

Recommends relevant tags based on task content with confidence scores.

Time estimation:

Predicts how long a task will take:

• Point estimate (e.g., 45 minutes)
• Range (e.g., 30-60 minutes)
• Based on similar completed tasks

Schedule suggestions:

Finds optimal times to work on tasks considering:

• Your calendar availability
• Energy level preferences
• Task priority and deadline

Relationship detection:

Identifies connections between tasks:

• Blocks: This task must complete before another
• Depends on: This task requires another to complete first
• Related to: Tasks that share context
• Part of: Subtasks or components

Boards

AI board creator:

Generate an entire Kanban board from a description:

1. Click Create with AI when making a new board
2. Describe your project or workflow
3. Coline generates columns and starter cards
4. Review and customize the generated board

AI card assistant:

Click the sparkle icon on any card for:

• Generate summary: Create a description from the title
• Suggest priority: Analyze and recommend priority level
• Create checklist: Break the card into actionable items
• Suggest labels: Recommend appropriate labels
• Estimate points: Suggest story points for agile workflows

Card splitting:

For large cards, Coline can suggest how to split them into smaller, actionable items.

Notes and Docs

Inline AI editing:

1. Select text in the editor
2. Click the AI button or press the keyboard shortcut
3. Choose an action:
   • Rewrite for clarity
   • Make more concise
   • Expand with detail
   • Change tone
   • Fix grammar
4. Review the streaming edit and accept or reject

Coline Tab also works in notes and docs for autocomplete as you type.

Code

Kairo Code provides AI assistance in the code editor:

• Completions: Real-time suggestions as you type
• Explanations: Highlight code and ask for explanation
• Refactoring: Improve code structure
• Bug detection: Identify potential issues
• Documentation: Generate comments and docs

Reasoning levels:

For complex problems, increase the reasoning level (0-2) to get more thorough analysis with visible thinking process.

Keyboard shortcuts

Slash commands

Type / in any editor to insert AI-powered blocks:

• /heading - Insert heading
• /list - Insert bullet list
• /todo - Insert checkbox list
• /code - Insert code block
• /quote - Insert blockquote
• /table - Insert table
• /image - Insert image
• /callout - Insert callout box

Configuration

Model selection

Change your default model:

1. Go to Settings > AI
2. Choose your preferred model
3. Optionally set reasoning level for complex tasks

Usage limits

AI usage is included with your plan:

Privacy

• Coline AI processes only the context you provide
• Conversations are stored in your workspace
• Enterprise plans support data residency
• Delete AI history anytime in settings

API access

Use Kairo programmatically:

import { createKairoAgent } from '@colineapp/kairo-agent';

const agent = createKairoAgent({ auth: tokenManager });

const text = await agent.streamText({
  contents: [
    { role: 'user', parts: [{ text: 'Summarize my open tasks' }] }
  ],
  modelType: 'gpt-5.2',
});

See API & SDK for full documentation.

Tips

• Use Tab completion everywhere - it learns your writing style
• Try autopilot in calendar to let Coline plan your day
• Compare models in Kairo to see which works best for your task
• Check the digest each morning for AI-suggested schedule
• Be specific in prompts for better results
• Review AI outputs before sending emails or creating public content