tools-improve

REQUIRED: Load this skill BEFORE creating, modifying, or reviewing any Claude Code skill, subagent, or CLAUDE.md file. Contains critical best practices for .claude/skills/, .claude/agents/, and CLAUDE.md. Use when: creating agents, creating skills, editing SKILL.md files, editing agent .md files, reviewing skill/agent code, reviewing or editing CLAUDE.md, adding instructions to CLAUDE.md, or any work involving Claude Code extensibility.