Notes on software engineering. My current focus: solo development with coding agents — document-driven development, context engineering, and working alongside AI.
- essayI Had Claude Code Make the Demo GIF for My README
- karasukarasu weekly update: language v2.0, a focus canvas, and 97% fewer SVG elements
- karasuMapping an Unfamiliar Repository: Introducing karasu's reverse-architecture Skill
- essayCan Opus 5.5 Make Use of Progressive Disclosure? Path-Scoped Rules vs. Skills: Which One Reaches the Agent
- essayNotes for the Progressive Disclosure Re-run
- essayDoes a Test Perspective Library Help a Coding Agent? Measuring It at Bug Detection, Implementation, and Design
- essayNotes for the TPL Experiment
- essayWhy ADRs Belong in the Repository, and How to Hand Their Context to a Coding Agent
- essayNotes for the ADR Recall Experiment
- essayI believed context improved quality. I never checked.
- karasuI Interviewed My Coding Agent After Three Months of Document-Driven Development
- karasukarasu — A Text-Based DSL for Describing a System's Logical, Physical, and Organizational Structure in One Language
- hatoIntroducing hato, a Personal Journaling System
- karasuA Coding Agent's Value Wasn't "Writing Fast"