Agent Harness Construction

If you're building or debugging AI agents and frustrated by low completion rates or endless retry loops, this is the checklist you need. It covers the four constraint areas that actually matter: action space design, observation formatting, error recovery, and context budgeting. The guidance is opinionated and specific, like using micro-tools for risky operations and always including next_actions in tool responses. It also pushes a hybrid ReAct plus function-calling pattern as the sweet spot for most workflows. Honestly, this reads like hard-won lessons from someone who's shipped agents in production and watched them fail in predictable ways.

Install to Claude Code

npx -y skills add affaan-m/everything-claude-code --skill agent-harness-construction --agent claude-code