AI Briefing
KO

The More Verification, the Faster the Speed: How Flava API Gateway Uses Agents

·2026.06.25 11:00

Key point

LY Corporation presented three key practices for maintaining agent code quality during the development of Flava API Gateway.

Details

AI agents dramatically increase coding speed, but they have limitations in producing non-deterministic results, such as compilation errors, incorrect API references, or poor design. Additionally, reliability issues arise as the volume of code generated by agents outpaces developers' review speed.

LY Corporation introduced three key strategies to address these issues while building Flava API Gateway.

  • Spec-driven development: Clearly define the design and tasks before writing code to ensure consistency for the agent.
  • Automated verification: Build an automated verification system that allows agents to discover errors themselves and fix them incrementally.
  • Fast, hermetic local environment: Provide an independent local environment that can run the entire verification loop in seconds without waiting for CI.

In particular, during the design phase, they based their approach on the OpenAPI standard, but used configuration languages such as Nickel to reduce the hassle of manual management, narrowing the gap between design and implementation.

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