Isabelle Ilyia, co-founder and CTO of Cedar (YC W25), joins Shane and Abhi to demo Cedar Copilot — the AI-native "Superhuman for sales," built on Mastra from day one.

Cedar started as an open-source framework for agentic frontends. Isabelle walks through the pivot: the same technology, verticalized for the messiest part of sales — the stretch from first demo to closed deal. She gives a live tour of a pipeline where agents manage every deal, extract a sales-and-product knowledge base straight from your calls, generate custom one-pagers and per-prospect decks, and run a full AI-native email client. Then the technical side — how it's built on Mastra primitives, where MCP and human-in-the-loop fit, and a multi-threading agent that spots single-threaded deals, figures out who to reach next, and drafts the intro.

Whether you're a founder running your own sales or an AE drowning in pipeline, it's a concrete look at what agent-native go-to-market software actually looks like.

AI Agents Hour is a weekly livestream by Mastra CPO Shane Thomas and CTO Abhi Aiyer. Mondays 12PM Pacific.

📚 ABOUT CEDAR
Cedar Copilot: https://cedarcopilot.com
Isabelle Ilyia on LinkedIn: https://www.linkedin.com/in/isabelle-i
Cedar-OS (open-source framework): https://github.com/CedarCopilot/cedar-OS

📚 MASTRA RESOURCES
Mastra: https://mastra.ai
Mastra on X: https://x.com/mastra_ai
Mastra Discord: https://mastra.ai/community/discord
Mastra GitHub: https://github.com/mastra-ai
Learn Mastra: https://mastra.ai/learn
Principles of Building AI Agents (Book): https://mastra.ai/books/principles-of-building-ai-agents
Patterns for Building AI Agents (New Book): https://mastra.ai/books/patterns-of-building-ai-agents

WHAT IS MASTRA?
Mastra is an open-source TypeScript framework designed for building and shipping AI-powered applications and agents with minimal friction. It supports the full lifecycle of agent development—from prototype to production. You can integrate it with frontend and backend stacks (e.g., React, Next.js, Node) or run agents as standalone services. If you're a JavaScript or TypeScript developer looking to build an agentic or AI-powered product without starting from first principles, Mastra provides the scaffolding, tools, and integrations to accelerate that process.

⏱️ CHAPTERS
00:00 Cold open
00:18 Welcome
00:40 What is Cedar Copilot?
03:00 Demo: the deal pipeline & per-deal agents
05:08 Generating collateral: one-pagers & custom decks
07:15 The AI-native email client
09:06 The pivot: from open-source framework to sales
10:23 Horizontal product, verticalized for sales
11:12 Headless API, MCP & human-in-the-loop
12:16 Inside the graph: the knowledge & process layer
13:51 The multi-threading agent
14:28 Who's using Cedar
15:27 Where to find Cedar
15:50 Outro