• Agent Builder is now live for all users
• Build custom AI helpers tailored to specific roles and workflows in your business
• Agents are powered by Brain AI, so they inherit your brand voice and business context from day one
What this means:
Go beyond the 12 built-in helpers and create specialized agents scoped to any task — onboarding leads, managing niche workflows, handling a product vertical — with full access to your integrations.
Agent Builder
The Agent Builder lets you create your own custom Agent Helpers beyond the 12 pre-built ones.
What It Does
Build custom helpers with their own personality, expertise, avatar, and skills — then use them just like the built-in ones.
Creation Flow (Step by Step)
Creation happens through a conversational interface: you chat with the system while a guided canvas tracks progress:
1. Role Definition — Define the helper's job. The AI generates a personality file (SOUL.md) and behavioral rules
2. Look/Avatar — AI generates an avatar (with background removal). You can request up to 3 revisions
3. Description — Define what the helper does (42–200 characters)
4. Boundaries — Set limits and restrictions for the helper's behavior (up to 500 characters)
5. Skills Setup — Configure specific capabilities and automated workflows
6. Save — Everything is persisted to Brain AI as a structured knowledge folder
Naming Rules
• Must sound like a person's name (e.g., Remi, Tova, Nalo)
• Short (1–3 syllables), single word, starts with uppercase
• Cannot reuse a built-in helper's name
What Gets Created
Each custom helper is stored as a structured folder:
• SOUL.md — Core personality, behavior, and expertise
• Rules folder — Safety guidelines, communication style, behavioral restrictions
• Skills folder — Custom workflows and procedures
• look.md — Visual traits description (so the avatar can be recreated)
Three Types of Helpers
12 Helpers
Sintra initially offers 12 AI Helpers, each acting as a specialized AI employee with industry-specific knowledge and tools:
Buddy – Business Development
Cassie – Customer Support
Commet – eCommerce
Dexter – Data Analyst
Emmie – Email Marketer
Gigi – Personal Development
Milli – Sales Manager
Penn – Copywriting
Scouty – Recruiting
Seomi – SEO
Soshie – Social Media Management
Vizzy – Virtual Assistant
Each Helper has a distinct name, visual identity, and quick-use tools tailored to their role (e.g., Buddy has a marketing strategy generator, Soshie a LinkedIn post writer). They grow smarter over time through Brain AI, which lets them learn about your business. They also support web browsing, Google search, and third-party app integrations (Gmail, Instagram, QuickBooks, etc.)
This is your helper's home base.
When you open any helper — in this case, Buddy, your Business Development strategist — you'll see:
• Who they are — Buddy's avatar, name, and specialty are front and center — you always know who you're talking to
• What they do — A clear description below the name. No guesswork — each helper tells you exactly what it does
• Chat input — Type your request, use the mic for voice, or attach files) And Buddy gets to work
• Settings panel (shown on the right) — Tap the Settings button to view or edit Buddy's profile and description. This is where you can customize what Buddy knows about your business
• Tasks section (at the bottom) — Automated tasks you've set up for Buddy — recurring work on autopilot, like weekly competitive reports or daily market scans. Searchable.
It's designed to feel like opening a conversation with a team member who already knows their job — you just tell them what you need.
2. Your Custom Agent Helpers
Create these in the Agent Helper Builder.
Key differences:
• User-created — You build these from scratch in the Helper Builder by defining a name, role, personality, and instructions
• Fully editable — Unlike pre-built helpers, you can change everything — name, avatar, instructions, and behavior
• Fully deletable — You can permanently remove these helpers. Pre-built Sintra helpers can only be hidden/unhidden, not deleted
• They function the same way as pre-built helpers once created — they can run automations, use brain data, and be assigned tasks
Agent Helpers = custom AI assistants built for any role or workflow not covered by Sintra's 12 defaults.
3. Hired Helpers (installed from Marketplace)
These are pre-made helpers from the Marketplace — built by Sintra or other users.
Here's how they work:
• Pre-built by others — Someone else designed the helper's core identity (name, avatar, role, personality) and published it to the Marketplace
• You "hire" them — Installing one adds it to your helper roster, ready to use
• Core identity is locked — You cannot change the helper's avatar, name, or fundamental role — that's protected by the original creator
• You can customize behavior — Once hired, you can add your own rules and skills to tailor how the helper works for your specific needs
• Think of it like hiring an employee — They come with a set identity and expertise, but you can train them with additional instructions for your workflows
Hired Helpers = ready-made Marketplace assistants you can customize, while the creator's original identity stays intact.
Skills
Helper Skills — Live inside a specific helper's folder, scoped to just that helper
User Library Skills — Personal automation library available across all helpers
All agents also have system-level skills:
• Slide/presentation creation
• Spreadsheet generation
• Automation building
• Website building
• Marketplace management

