EchoStash

Basic Variables

Variables inject dynamic content into your prompts at render time:

support-agent.echo

You are a customer support agent for {{company}}.

The customer's name is {{customer.name}} and they have a {{customer.tier}} membership.

Their issue is: {{issue.description}}

Nested Access

Access nested object properties with dot notation or array indices:

nested.echo

You are helping {{user.profile.name}} who works at {{user.company.name}}.

Their recent orders:
- Most recent: {{orders[0].product}}
- Previous: {{orders[1].product}}

Default Values

Use ?? to provide fallbacks when variables might be undefined:

defaults.echo

You are a support agent for {{company ?? "our company"}}.

Hello {{customer.name ?? "valued customer"}}! How can I help you today?

Typed Variables

Specify variable types for validation. File types resolve to base64 data URLs:

typed.echo

Analyze the attached document: {{document:file}}

The customer has been with us for {{tenure:number}} years.
Premium status: {{isPremium:boolean}}