Proactivity & Learning

How Dex Learns

An hourly pipeline processes your chats and browsing into structured memories. Over time, Dex builds up:

• Core memory: your identity, role, communication style. Used in every conversation.
• Semantic memories: a growing record per person, project, or company you interact with.
• Integration memories: how you use each app.
• Procedural memories: workflows documented after you repeat a pattern 2+ times.

All memories are auto-accessed and used during a chat based on relevance to your message.

Proactive Suggestions

Dex shows suggested actions in the sidebar based on your current context:

• Automations panel: suggests new automations based on your existing and recent browsing.
• Tasks panel: suggests concrete tasks based on your open tabs and recent activity.
• Task detail view: suggests next steps for a specific task.

Site-Specific Suggestions

When you navigate to a page, Dex shows contextual chat starters:

• App-matched: for known sites like Gmail, GitHub, Google Calendar, etc., Dex shows specific prompts based on where you are. For example: Gmail inbox → "Summarize unread emails." Github PR → "Review this PR." Google Calendar → "What's on my schedule today?"
• AI-generated: for other sites, Dex creates 3 custom prompts based on the page title and URL.

Supported for 17+ sites: Gmail, GitHub, Google Calendar, Slack, Notion, Sheets, Docs, Drive, Linear, HubSpot, Salesforce, Asana, Intercom, Shopify, QuickBooks, Apollo, Attio, and Gong.

Settings

These controls are available in your dashboard:

• Memory: toggle whether Dex can learn from browsing and chat. Disabling also turns off proactive suggestions.
• Proactive Suggestions: requires memory to be on. Toggle suggestions independently.
• Disabled Sites: domain blocklist where Dex ignores all page content. See disabling.