The Changelog: Software Development, Open Source Spec-driven development with Kiro (Interview)
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Oct 15, 2025 
Deepak Singh leads the developer agents team at AWS, focusing on Kiro, an innovative AI coding environment. He delves into the significance of spec-driven development and shares the design journey influenced by QCLI. Deepak describes how Kiro's interface streamlines task generation and agent interactions, while highlighting the importance of maintaining context without direct code editing. The discussion also covers the dual target audience for Kiro, the integration of automation hooks, and insights on developing fully automated applications in the future.
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Built From Amazon's Internal Use
- Amazon built internal agents like QCLI and learned real developer needs by watching internal usage patterns.
- The team observed senior engineers break problems into smaller tasks and modeled Kiro after that workflow.
Edit Specs, Not Generated Code
- Change the specification to alter implementation instead of manually editing generated code to preserve agent context.
- Interrupt the agent (Ctrl-C) and redirect when the chain-of-thought shows a wrong direction rather than editing code directly.
Project Context Is Multidimensional
- Kiro projects bundle specs, tools (MCP servers), steering files, and hooks so agents have structured context and behaviors.
- This package approach preserves intent and allows automation to run within the project's context.