#claude-code (12)

Cheat sheets (12)

ccusage — Claude Code & Coding-Agent Token Usage Analyzer

Local-first CLI and TypeScript library that reads JSONL session logs from Claude Code, Codex, and 13 other coding agents to produce daily/weekly/monthly/session/billing-block reports of token spend.

ccusage npm package cli claude-code tokens cost ai tooling web-researched

Claude Code

Anthropic's agentic CLI — installation, configuration, slash commands, hooks, MCP integration, subagents, skills, statusline, and power-user workflows.

claude-code cli anthropic agentic

Claude Code CLI — Complete Command-Line Reference

All claude CLI flags, startup modes, non-interactive usage, environment variables, keyboard shortcuts, subcommands, exit codes, and configuration file locations in one place.

claude-code cli reference commands

Claude Code Hooks

Automate Claude Code lifecycle events with shell hooks — PreToolUse, PostToolUse, UserPromptSubmit, Notification, Stop, SubagentStop, and PreCompact. Covers configuration, environment variables, JSON I/O, exit codes, and blocking examples.

claude-code hooks automation lifecycle shell

Claude Code MCP Servers

Add, configure, and build Model Context Protocol (MCP) servers for Claude Code — HTTP, SSE, and stdio transports, management commands, permission rules, and a curated list of useful servers.

claude-code mcp model-context-protocol tools extensions

Claude Code Overview

Install, configure, and use Claude Code — Anthropic's agentic CLI. Covers interactive mode, headless scripting, CLAUDE.md memory files, the project/user settings hierarchy, IDE integration, and authentication.

claude-code cli agentic anthropic setup headless claude-md

Claude Code Settings and Permissions

Complete settings.json schema for Claude Code — permission rules, tool allowlists/denylists, environment variables, hooks, MCP, statusline, model selection, and file precedence.

claude-code settings permissions configuration json hooks

Claude Code Skills

Author and load custom Claude Code skills — how skills are discovered, the SKILL.md schema, available-skills list, packaging, project-vs-user scope, plugin namespacing, and the difference from slash commands.

claude-code skills plugins extensions customisation

Claude Code Slash Commands

Complete reference for every built-in Claude Code slash command — session control, context management, configuration, tools, MCP, and authoring custom commands with arguments.

claude-code slash-commands cli reference custom-commands

Claude Code Statusline

Customise the Claude Code statusline — settings.json keys, the JSON context passed to scripts, available variables (model, session id, cwd, branch, cost), and example scripts in bash, python, and Node.

claude-code statusline customisation prompt ui

Claude Code Subagents

Spawn isolated subagents with the Task tool — Plan, Explore, general-purpose, project-defined agents, isolation modes including worktrees, background runs, and orchestration patterns.

claude-code subagents task agent worktree parallel

Claude Code Power-User Tips

Advanced Claude Code workflows — effective CLAUDE.md authoring, custom skills, multi-agent patterns, headless scripting, cost control, keyboard shortcuts, prompt caching, and daily workflow techniques.

claude-code tips workflow productivity cost claude-md skills subagents