Kiro Blog

KiroFeb 18, 2026

New spec types: fix bugs and build on top of existing apps

**Design-first Specs:** Kiro's new Design-first workflow lets developers start with a technical approach, matching their existing thought process when building on existing apps or fixing bugs. By choosing a high-level or low-level design, developers can explore different technical approaches and ensure requirements are feasible. This workflow is ideal for projects with pre-defined architectures, prototyping, or strict non-functional requirements. **Bugfix Specs:** Kiro's Bugfix workflow helps developers fix complex bugs with precision by defining the scenario that caused the error, stating what should not be modified, and generating a structured document with Current Behavior, Expected Behavior, and Unchanged Behavior sections. This ensures accurate testing and minimizes regression risk, making it suitable for complex bugs, high-risk changes, or documentation-heavy fixes.

AIDevTools

1 min

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