Engineering brief

Stop Blaming the Model—Your Agent Workflow Is the Real Problem

Cole Medin1 min read · saves 17 min

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Most teams drown their coding agents in bloated rules and stale context. The fix: keep global rules under 200 lines, use hooks for critical steps, and never let the writer approve its own work.

Coding agent reliability depends on workflow design, not model choice.

Summary

The video provides 11 practical tips for improving coding agent reliability. The core idea is that specificity matters more for agents than humans—rules must be blunt and file-path-explicit, not high-level guidance. This leads directly to rule drift, where stale instructions actively harm agent performance.

The video warns against compact summaries, which lose ~90% of detail, and recommends handoff documents instead. A key insight is that load-bearing rules should be hooks, not probabilistic guidelines, guaranteeing test execution or other critical steps.

The author argues against complex multi-agent coordination, calling it unreliable, and advises a simple delegator pattern. Other tips include keeping global rules under 200 lines, avoiding mid-task model swaps, and never letting the writer approve its own work. The final emphasis is on validation as a system, not an afterthought.

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