Talking Kotlin
Talking Kotlin
Talking Kotlin
Building AI Agents With Koog
1 hour 22 minutes Posted Nov 17, 2025 at 5:41 pm.
Sebastian and Márton talk to Vadim Briliantov, the Technical Lead for Koog: an agentic framework built by JetBrains. We learn about what AI agents are, and why building them in Kotlin with Koog is a great choice. We also discuss all the different ways AI agents can connect to other systems and your existing code, and look at advanced features for agents like custom strategies, model switching, and history compression.Resources: JetBrains/koog on GitHub Koog DocumentationHosts: Sebastian Aigner – Website | Bluesky Márton Braun – Website | Bluesky Guest: Vadim Briliantov – LinkedIn | Medium | GitHub | Bluesky | Twitter/X Timeline:
Intro
Vadim’s history at JetBrains
What’s an AI Agent?
Koog!
Applications for agents
Koog’s building blocks
Strategies, feedback loops
The Kotlin DSL
Persistent state
Subgraphs
Tools
MCP support (and A2A)
Entry point and type safety
Spring and Ktor support
LLM Providers
Model switching
History and memory
Enterprise-ready
History compression
Markdown?!
What’s next?
Going open-source
0:00
1:22:48
Download MP3
Show notes
Sebastian and Márton talk to Vadim Briliantov, the Technical Lead for Koog: an agentic framework built by JetBrains. We learn about what AI agents are, and why building them in Kotlin with Koog is a great choice. We also discuss all the different ways AI agents can connect to other systems and your existing code, and look at advanced features for agents like custom strategies, model switching, and history compression.Resources: JetBrains/koog on GitHub Koog DocumentationHosts: Sebastian Aigner – Website | Bluesky Márton Braun – Website | Bluesky Guest: Vadim Briliantov – LinkedIn | Medium | GitHub | Bluesky | Twitter/X Timeline:(0:00) Intro(1:11) Vadim’s history at JetBrains(4:21) What’s an AI Agent?(5:47) Koog!(7:12) Applications for agents(12:43) Koog’s building blocks(15:05) Strategies, feedback loops(23:55) The Kotlin DSL(26:12) Persistent state(29:48) Subgraphs(32:33) Tools(39:52) MCP support (and A2A)(44:01) Entry point and type safety(49:39) Spring and Ktor support(51:27) LLM Providers(53:30) Model switching(56:02) History and memory(59:22) Enterprise-ready(1:02:12) History compression(1:11:47) Markdown?!(1:14:37) What’s next?(1:18:22) Going open-source(1:20:32) Conclusion