claude-code
Installation
SKILL.md
Claude Code
Anthropic's agentic coding tool combining autonomous planning, execution, and validation with extensibility through skills, plugins, MCP servers, and hooks.
Core Concepts
Subagents: Specialized agents (planner, code-reviewer, tester, debugger, docs-manager, ui-ux-designer, database-admin)
Agent Skills: Modular capabilities with SKILL.md + bundled resources (scripts, references, assets) loaded progressively
Slash Commands: User-defined operations in .claude/commands/ expanding to prompts
Hooks: Event-driven shell commands (SessionStart, PreToolUse, PostToolUse, Stop, SubagentStop)
MCP Servers: Model Context Protocol integrations for external tools (GitHub, Jira, databases)
Plugins: Packaged collections distributed via marketplace