agent-engineering
Agent Engineering Principles
Battle-tested principles for AI coding agents that produce reliable, high-quality work.
When to Use This Skill
- Writing or reviewing an
AGENTS.md/CLAUDE.md/CURSOR.mdfile for a project - Configuring a new AI coding agent or subagent
- Diagnosing why an agent keeps making the same mistakes
- Reviewing agent output quality and identifying systemic issues
- Onboarding an agent to a complex codebase
1. Plan Mode Default
- Enter plan mode for ANY non-trivial task (3+ steps or architectural decisions)
- If something goes sideways, STOP and re-plan immediately — don't keep pushing
- Use plan mode for verification steps, not just building
- Write detailed specs upfront to reduce ambiguity
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