Supercharging Spec-Driven Development for Event-Driven Architectures with AsyncAPI

Spec-Driven Development (SDD) has been steadily gaining traction (popularised by Kiro, GitHub Spec Kit, etc.) for its ability to articulate and break down a feature into well-thought-through, detailed tasks for AI coding agents to implement.

When building Event-Driven Architectures (EDA) using SDD, the process can be hindered by the ambiguity of plain-language markdown and the absence of a concrete system representation. This is where the AsyncAPI specification becomes a powerful companion.

AsyncAPI brings precision and structure to what would otherwise remain loosely defined. It allows teams to externalise their intent into a clear, machine-readable design artifact that describes channels, messages, and bindings. This effectively clarifies the architecture before implementation begins. The result is a system design that is both reviewable by humans and directly usable by AI coding agents as a source of truth for building out the implementation.

If you are interested in learning how a pragmatic approach to Spec-Driven Development can be applied to building event-driven systems (without the hype), and with AsyncAPI as the bridge between design intent and working code, this session will offer a concise, experience-based walkthrough.

Transcript

1. Supercharging Spec-Driven Development for Event-Driven Architectures with AsyncAPI Hari Krishnan https://harikrishnan.io
2. 2026 EDA with SDD? “we’ve observed it maintaining focus for more than 30 hours on complex, multi-step tasks” – anthropic.com
3. Spec-Driven Development A brief introduction about what it is and how it differs from Vibe Coding
6. Spec-Driven Development for EDA SDD workflow for building event-driven applications
7. To Technical Design
8. To Tasking
9. To Implementation
11. SDD with OpenSpec Understand its workflow
13. EDA with OpenSpec Even-Driven Architecture Workflow with Custom OpenSpec Schemas https://github.com/intent-driven-dev/openspec-schemas/tree/main/openspec/schemas/event-driven
14. Default Schema (spec-driven) vs Custom Schema (event-driven) https://github.com/intent-driven-dev/openspec-schemas/tree/main/openspec/schemas/event-driven
15. Live Demo +
16. Resources • OpenSpec Custom Schemas - https://github.com/intent-driven-dev/openspec-schemas/ • OpenSpec - https://github.com/Fission-AI/OpenSpec • Blog - https://intent-driven.dev/blog/
17. Thank you! Hari Krishnan https://harikrishnan.io