As agentic coding becomes more prevalent, where AI agents can generate both code and commit descriptions, the importance of manual writing remains significant. The author suggests that writing commit descriptions manually helps developers reflect on the code they have written. By summarizing changes and explaining the "why," the process acts as a thinking tool, helping developers re-evaluate their decisions and ensure they truly understand the code they are shipping.
Writing Commit Descriptions Can Serve as a Thinking Tool for Developers
Furthermore, the author notes that manual writing allows developers to capture temporary decisions and exit criteria that are not explicitly stated in the code. While AI agents may lack the full context from various communication tools and might fabricate reasoning, the act of articulating the rationale helps developers verify if the code performs as intended.
Sources
- Commit Description as a Thinking Tool （Hacker News Frontpage, 2026-09-30）