Over-testing AI coding agents drive up token costs

Users report that over-eager AI coding agents like GPT-5.6 Sol write massive amounts of test and defensive code even for simple tasks—one agent generated 41,000 lines over 11 hours—spurring discussion on tuning effort levels and agents.md settings to control costs.

2026-08-27 ~ 2026-08-27 · 3 related posts

• Managing Codex costs: Balancing testing and token usage — JeremyNguyenPhD · 2026-08-27
• GPT Coding Agent's Over-Engineering: 41k Lines for Simple Migration vs. 20 Min Manual Fix — thatroblennon · 2026-08-27
• Agent wrote 41,000 lines over 11 hours to "protect" a simple DB migration — JeremyNguyenPhD · 2026-08-27