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Slashy’s AI writes emails that sound like you by learning from your email history, explicit preferences, and draft feedback. You can accelerate this by telling the agent exactly how you want it to write.
The fastest way to train the agent: set 3-5 writing memories on day one, then actively edit AI drafts for the first week. Most users see accurate drafts by day 7.

Setting Writing Memories

Open the agent sidebar (d a) and tell it your preferences:
  • “Remember: I write short, direct emails. Never use ‘I hope this finds you well.’ Keep it under 3 sentences.”
  • “Remember: I sign off with just my first name, no ‘Best’ or ‘Regards.’”
  • “Remember: formal tone for investors, casual for my team.”
  • “Remember: never use exclamation marks.”
Manage all memories in Settings > Memories (Cmd+,).
Agent sidebar showing writing style memories and preferences
Writing style settings showing detected persona and tone preferences

Memory Types

The agent retrieves the right memories based on context automatically.

Persona Detection

During setup, Slashy analyzes your sent emails to detect your persona, greeting style, and signature. Edit these anytime in Settings > Account.
Persona detection settings showing auto-detected communication style

Training by Deleting Bad Drafts

Every dismissed draft teaches the agent what not to do. Every edit before sending teaches it what you prefer. The learning is context-specific — editing a sales reply improves sales drafts, not meeting confirmations. First week advice: Actively dismiss bad drafts and edit acceptable ones. Most users see significant improvement within 10-15 interactions.

Direct Feedback

Beyond deleting drafts, give feedback through the sidebar:
  • “That last draft was too formal. I talk to Mike like a friend.”
  • “When I reply to support tickets, use bullet points and be concise.”

Per-Contact Preferences

  • “Remember: when emailing anyone @bigclient.com, use a formal tone with my full signature.”
  • “Remember: Mike prefers short emails. Keep replies under 2 sentences.”

Choosing Your AI Model

Pick the model for agent chat from the picker at the bottom left of the message box. Haiku and Sonnet work on every account. Opus and Fable use your own Anthropic API key. See AI models in Slashy.

Bring Your Own API Key

Use Opus and Fable by providing your own Anthropic API key:
1

Open Integrations settings

Go to Settings > Integrations (Cmd+,) and find the Claude API key card (the AI filter narrows the page to it).
2

Connect your key

Click Connect, paste your Anthropic API key, and click Connect again.
3

Remove it anytime

Click Disconnect on the same card to remove the key. Opus and Fable are unavailable until you add another.
Opus and Fable usage with your own API key bills to your Anthropic account. Haiku and Sonnet remain included with your Slashy subscription.
Need a key? See Get an Anthropic API key.

How AI Drafts Work

Auto-suggestions and learning

AI Memories

How memories power personalization

10 Automations

Set up impactful automations

Signatures

Configure signatures and remove branding

Assistant email on your domain

Have your assistant email from your company address