Documentation Index
Fetch the complete documentation index at: https://docs.nedzo.ai/llms.txt
Use this file to discover all available pages before exploring further.
The Prompt tab is where you define your agent’s personality, instructions, voice, and AI model. This is the core of what makes your agent unique.
System prompt
The system prompt is the main set of instructions for your agent. It defines the agent’s personality, goals, rules, and conversation flow.
Write your prompt in the large text editor on the right side of the Prompt tab. A token counter at the bottom shows the approximate size.
Tips for good prompts:
- Be specific about the agent’s role and goals
- Define what the agent should and shouldn’t do
- Include example phrases or responses
- Describe how to handle edge cases
Use the Enhance with AI button to get suggestions for improving your prompt.
Opening line
The opening line is the first thing your agent says when a conversation starts. Set it in the left column of the Prompt tab.
Example: “Hi there, is this {{contact.firstName}}?”
Variables
Use variables in your prompt and opening line to personalize conversations. Click the Variables button to see all available options.
Nedzo uses dot notation for variables — {{contact.firstName}}, {{trigger.conversation.summary}}, etc. Pick the namespace, then drill in.
The legacy flat syntax ({{contactFirstName}}, {{contactEmail}}, etc.) still works for backwards compatibility with existing prompts and workflows. New prompts should use dot notation — it’s clearer, scales to nested data like custom fields, and matches the variable picker.
System variables
| Variable | Description | Example |
|---|
{{date}} | Current date | 2025-01-15 |
{{time}} | Current time | 2:30 pm |
{{dayOfWeek}} | Day of the week | Monday |
| Variable | Legacy alias | Description |
|---|
{{contact.firstName}} | {{contactFirstName}} | Contact’s first name |
{{contact.lastName}} | {{contactLastName}} | Contact’s last name |
{{contact.email}} | {{contactEmail}} | Contact’s email address |
{{contact.phone}} | {{contactPhone}} | Contact’s phone number |
{{contact.companyName}} | {{contactBusinessName}} | Contact’s company name |
{{contact.customFields.<fieldName>}}.
Custom variables
You can create workspace-level custom variables for data that’s specific to your business. These are available across all agents in the workspace.
LLM model
Choose which AI model powers your agent. Select a model from the dropdown in the left column of the Prompt tab.
Supported providers
| Provider | Models |
|---|
| OpenAI | GPT-4o and other available models |
| Anthropic | Claude 3.5 Sonnet and other available models |
| Google | Gemini 1.5 Flash and other available models |
Temperature
Temperature controls how creative or deterministic the agent’s responses are:
- Lower values (e.g., 0.3) — More consistent, predictable responses. Good for support, factual tasks, and reliable tool calls.
- Higher values (e.g., 0.9) — More varied, creative responses. Good for sales and casual conversation.
- Default: 0.3
Language
Set the agent’s language from the Prompt tab. Supported languages:
- English
- Spanish
- Portuguese
- French
- German
- Dutch
- Chinese
- Japanese
Changing the language resets your voice selection, since voices are language-specific.
Voice
Give your agent a natural-sounding voice. Voice settings are available for voice agents and web agents.
Voice selection
Pick a voice from the dropdown. Voices are filtered by your selected language, so you’ll only see voices that match.
Each voice shows:
- Name — The voice identifier
- Gender — Male or Female
- Accent — Regional accent variant
- Description — A short summary of how the voice sounds
Click the play button next to any voice to preview it before selecting.
Voice speed
Adjust how fast your agent speaks with the speed slider:
| Speed | Effect |
|---|
| 0.7x | Slower, more deliberate |
| 1.0x | Normal speed (default) |
| 1.2x | Slightly faster |
