EngineeringMay 30, 202610 min read

Applications Maintained by Dynamic Harness-Driven Development

A general operating model for collecting runtime evidence, planning repairs, and keeping AI-assisted products stable

This application is maintained through dynamic harness-driven development. The method treats harness results as operational evidence, converts failures into bounded repair plans, and preserves learning without exposing internal implementation details.

dynamic-harnessharness-driven-developmentsoftware-maintenanceruntime-governancequality-engineering
EngineeringMay 30, 202612分

動的ハーネス駆動開発により保守されるアプリケーション

Runtime evidenceを収集し、改修計画へ変換し、AI支援プロダクトを安定運用するための汎用モデル

このアプリは動的ハーネス駆動開発により保守されています。Harness結果を運用証跡として扱い、失敗を境界付きの改修計画へ変換し、内部実装の詳細を公開せずに学習を残す方法です。

dynamic-harnessharness-driven-developmentsoftware-maintenanceruntime-governancequality-engineeringjapanese
EngineeringMay 30, 202618 min read

Harness-Driven Development: Building Agentic Systems from Runtime Evidence Backward

A development method where scenarios, gates, scorecards, and repair boundaries are designed before implementation

Harness-driven development treats the dynamic harness as the primary specification. Instead of writing agent code first and testing it later, teams define runtime episodes, failure taxonomies, gates, and evidence contracts first, then let implementation converge toward measurable behavior.

dynamic-harnessharness-driven-developmentagent-engineeringruntime-governanceevaluation-harness
EngineeringMay 30, 202624分

ハーネス駆動開発:Runtime Evidenceから逆算してAgentic Systemを作る

実装より先にscenario、gate、scorecard、repair boundaryを設計する開発方法論

ハーネス駆動開発では、dynamic harnessをテスト補助ではなく主仕様として扱う。promptやtoolを書く前に、runtime episode、failure taxonomy、scorecard、authority boundaryを定義し、実装を測定可能な振る舞いへ収束させる。

dynamic-harnessharness-driven-developmentagent-engineeringruntime-governanceevaluation-harnessjapanese