claude-howto/CATALOG.md

Claude Code Feature Catalog

Quick reference guide to all Claude Code features: commands, agents, skills, plugins, and hooks.

Navigation: Commands | Permission Modes | Subagents | Skills | Plugins | MCP Servers | Hooks | Memory | New Features

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Summary

Feature	Built-in	Examples	Total	Reference
Slash Commands	60+	8	68+	01-slash-commands/
Subagents	6	9	15	04-subagents/
Skills	10 bundled	6	16	03-skills/
Plugins	-	3	3	07-plugins/
MCP Servers	1	4	5	05-mcp/
Hooks	31 events	11	42	06-hooks/
Memory	7 types	3	10	02-memory/
Total	115	44	159

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Slash Commands

Commands are user-invoked shortcuts that execute specific actions.

Built-in Commands

Command	Description	When to Use
/help	Show help information	Get started, learn commands
/btw	Ephemeral side question — doesn't pollute main context	Quick tangent questions
/chrome	Configure Chrome integration	Browser automation
/clear	Clear conversation history	Start fresh, reduce context
/diff	Interactive diff viewer	Review changes
/config	View/edit configuration	Customize behavior
/status	Show session status	Check current state
/agents	List available agents	See delegation options
/skills	List available skills	See auto-invoke capabilities
/hooks	List configured hooks	Debug automation
/insights	Analyze session patterns	Session optimization
/install-slack-app	Install Claude Slack app	Slack integration
/keybindings	Customize keyboard shortcuts	Key customization
/mcp	List MCP servers	Check external integrations
/memory	View loaded memory files	Debug context loading
/mobile	Generate mobile QR code	Mobile access
/passes	View usage passes	Subscription info
/plugin	Manage plugins	Install/remove extensions
/plan	Enter planning mode	Complex implementations
/proactive	Alias for /loop (v2.1.105)	Same as /loop
/recap	Show session recap when returning to a session	After being away, get context on what was done
/rewind	Rewind to checkpoint	Undo changes, explore alternatives
/checkpoint	Manage checkpoints	Save/restore states
/cost	Shortcut alias that opens the cost tab of /usage (v2.1.118+)	Monitor spending
/context	Show context window usage	Manage conversation length
/export	Export conversation	Save for reference
/usage-credits	Configure extra usage limits (renamed from /extra-usage in v2.1.144; old name still works as alias)	Rate limit management
/feedback	Submit feedback or bug report	Report issues
/login	Authenticate with Anthropic	Access features
/logout	Sign out	Switch accounts
/sandbox	Toggle sandbox mode	Safe command execution
/doctor	Run diagnostics	Troubleshoot issues
/reload-plugins	Reload installed plugins. Since v2.1.221 most installs activate immediately; only needed when the install summary says Run /reload-plugins to activate.	Plugin management
/reload-skills	Re-scan skill directories without restarting (v2.1.152)	Skill management
/workflows	View running and completed dynamic workflow runs (v2.1.154)	Multi-agent orchestration
/release-notes	Show release notes	Check new features
/remote-control	Enable remote control	Remote access
/permissions	Manage permissions	Control access
/session	Manage sessions	Multi-session workflows
/rename	Rename current session	Organize sessions
/resume	Resume previous session	Continue work
/todo	View/manage todo list	Track tasks
/tui	Toggle fullscreen TUI (text user interface) mode	Flicker-free rendering in fullscreen/tmux
/tasks	View background tasks	Monitor async operations
/copy	Copy last response to clipboard	Share output quickly
/teleport (alias /tp)	Resume a Claude Code on the web session in this terminal; opens a picker. Requires a claude.ai subscription	Continue work remotely
/desktop	Open Claude Desktop app	Switch to desktop interface
/theme	Change color theme; v2.1.118 added custom named themes via ~/.claude/themes/<name>.json (plugins can ship a themes/ dir)	Customize appearance
/usage	Canonical command for usage/cost/stats — merged /cost and /stats into a single tabbed view (v2.1.118); as of v2.1.149 the cost view breaks spending down by category (skills, subagents, plugins, per-MCP-server). In the VSCode extension (v2.1.174), the /usage (Account & usage) dialog adds an attribution breakdown — cache misses, long-context cost, subagents, and per-skill / per-agent / per-plugin / per-MCP usage over 24h and 7d windows	Monitor quota and costs
/focus	Toggle focus view (distraction-free output display)	Reduce visual noise during long tasks
/fork	Copy the conversation into a new independent background session (v2.1.212+)	Explore alternatives in parallel
/subtask	Spawn a forked subagent that inherits the conversation and reports back (v2.1.212+)	Delegate a side task without losing your place
/stats	Shortcut alias that opens the stats tab of /usage (v2.1.118+)	Review session metrics
/statusline	Configure status line	Customize status display
/stickers	View session stickers	Fun rewards
/fast	Toggle fast output mode; applies to Opus 5 and Opus 4.8 (v2.1.219)	Speed up responses
/terminal-setup	Configure terminal integration	Setup terminal features
/undo	No longer documented — added as an alias for /rewind in v2.1.108, but it appears nowhere in the official commands reference	Use /rewind (or Esc Esc) instead
/upgrade	Check for updates	Version management
/team-onboarding	Generate a teammate ramp-up guide from this project's Claude Code usage	Onboarding new teammates (v2.1.101)
/code-review ultra	Run a cloud multi-agent code review over your current changes. /ultrareview remains as an alias; /code-review ultra is the preferred invocation. Includes 3 free runs on Pro and Max, then requires usage credits	Deep pre-merge review across multiple agents (v2.1.112)
/fewer-permission-prompts	Scan transcripts and propose a prioritized allowlist for common read-only tools	Reduce repeat permission prompts in a project (v2.1.112)

Custom Commands (Examples)

Command	Description	When to Use	Scope	Installation
/optimize	Analyze code for optimization	Performance improvement	Project	cp 01-slash-commands/optimize.md .claude/commands/
/pr	Prepare pull request	Before submitting PRs	Project	cp 01-slash-commands/pr.md .claude/commands/
/generate-api-docs	Generate API documentation	Document APIs	Project	cp 01-slash-commands/generate-api-docs.md .claude/commands/
/commit	Create git commit with context	Commit changes	User	cp 01-slash-commands/commit.md .claude/commands/
/push-all	Stage, commit, and push	Quick deployment	User	cp 01-slash-commands/push-all.md .claude/commands/
/doc-refactor	Restructure documentation	Improve docs	Project	cp 01-slash-commands/doc-refactor.md .claude/commands/
/setup-ci-cd	Setup CI/CD pipeline	New projects	Project	cp 01-slash-commands/setup-ci-cd.md .claude/commands/
/unit-test-expand	Expand test coverage	Improve testing	Project	cp 01-slash-commands/unit-test-expand.md .claude/commands/

Scope: User = personal workflows (~/.claude/commands/), Project = team-shared (.claude/commands/)

Reference: 01-slash-commands/ | Official Docs

Quick Install (All Custom Commands):

cp 01-slash-commands/*.md .claude/commands/

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Permission Modes

Claude Code supports 6 permission modes that control how tool use is authorized.

Mode	Description	When to Use
manual	Prompt for each tool call	Standard interactive use (renamed from default in v2.1.200; default still accepted)
acceptEdits	Auto-accept file edits, prompt for others	Trusted editing workflows
plan	Read-only tools only, no writes	Planning and exploration
auto	All actions, with background safety classifier checks	Long tasks, reducing prompt fatigue
bypassPermissions	Skip all permission checks	CI/CD, headless environments
dontAsk	Skip tools that would require permission	Non-interactive scripting

Note

: auto mode requires an eligible plan, model, and provider — see 09-advanced-features/. Use bypassPermissions only in trusted, sandboxed environments.

Reference: Official Docs

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Subagents

Specialized AI assistants with isolated contexts for specific tasks.

Nested spawning is on by default, depth 3 (v2.1.219): Subagents can spawn their own subagents up to three layers below the main conversation. Set CLAUDE_CODE_MAX_SUBAGENT_SPAWN_DEPTH to change the limit, or 1 to disable nesting. (History: v2.1.172–v2.1.216 nested by default up to 5 layers with no way to change it; v2.1.217 made nesting opt-in at depth 1; v2.1.219 set the default to 3.) See 04-subagents/README.md for the Agent(agent_type) syntax that restricts which subagents a given subagent may spawn.

Built-in Subagents

Agent	Description	Tools	Model	When to Use
general-purpose	Multi-step tasks, research	All tools	Inherits model	Complex research, multi-file tasks
Plan	Implementation planning	Read, Glob, Grep, Bash	Inherits model	Architecture design, planning
Explore	Codebase exploration	Read, Glob, Grep	Inherits (capped at Opus)	Quick searches, understanding code
claude	Catch-all for tasks that don't fit a more specialized agent	All tools	Inherits model	Tasks with no specialized agent; default agent for a dispatched background session
statusline-setup	Status line configuration	Bash, Read, Write	Sonnet 4.6	Configure status line display
claude-code-guide	Help and documentation	Read, Glob, Grep	Haiku 4.5	Getting help, learning features

Subagent Configuration Fields

Field	Type	Description
name	string	Agent identifier
description	string	What the agent does
model	string	Model override (e.g., haiku-4.5)
tools	array	Allowed tools list
effort	string	Reasoning effort level (low, medium, high)
initialPrompt	string	System prompt injected at agent start
disallowedTools	array	Tools explicitly denied to this agent

Custom Subagents (Examples)

Agent	Description	When to Use	Scope	Installation
code-reviewer	Comprehensive code quality	Code review sessions	Project	cp 04-subagents/code-reviewer.md .claude/agents/
clean-code-reviewer	Clean Code principles review	Maintainability review	Project	cp 04-subagents/clean-code-reviewer.md .claude/agents/
test-engineer	Test strategy & coverage	Test planning	Project	cp 04-subagents/test-engineer.md .claude/agents/
documentation-writer	Technical documentation	API docs, guides	Project	cp 04-subagents/documentation-writer.md .claude/agents/
secure-reviewer	Security-focused review	Security audits	Project	cp 04-subagents/secure-reviewer.md .claude/agents/
implementation-agent	Full feature implementation	Feature development	Project	cp 04-subagents/implementation-agent.md .claude/agents/
debugger	Root cause analysis	Bug investigation	User	cp 04-subagents/debugger.md .claude/agents/
data-scientist	SQL queries, data analysis	Data tasks	User	cp 04-subagents/data-scientist.md .claude/agents/
performance-optimizer	Profiling & performance tuning	Bottleneck investigation	Project	cp 04-subagents/performance-optimizer.md .claude/agents/

Scope: User = personal (~/.claude/agents/), Project = team-shared (.claude/agents/)

Reference: 04-subagents/ | Official Docs

Quick Install (All Custom Agents):

cp 04-subagents/*.md .claude/agents/

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Skills

Auto-invoked capabilities with instructions, scripts, and templates.

Example Skills

Skill	Description	When Auto-Invoked	Scope	Installation
code-review-specialist	Comprehensive code review	"Review this code", "Check quality"	Project	cp -r 03-skills/code-review-specialist .claude/skills/
brand-voice	Brand consistency checker	Writing marketing copy	Project	cp -r 03-skills/brand-voice .claude/skills/
doc-generator	API documentation generator	"Generate docs", "Document API"	Project	cp -r 03-skills/doc-generator .claude/skills/
refactor	Systematic code refactoring (Martin Fowler)	"Refactor this", "Clean up code"	User	cp -r 03-skills/refactor ~/.claude/skills/
claude-md	Create or update CLAUDE.md files	"Create CLAUDE.md", "Audit CLAUDE.md"	Project	cp -r 03-skills/claude-md .claude/skills/
blog-draft	Draft a blog post from ideas and resources	"Write a blog post", "Draft an article"	User	cp -r 03-skills/blog-draft ~/.claude/skills/

Scope: User = personal (~/.claude/skills/), Project = team-shared (.claude/skills/)

Skill Structure

~/.claude/skills/skill-name/
├── SKILL.md          # Skill definition & instructions
├── scripts/          # Helper scripts
└── templates/        # Output templates

Skill Frontmatter Fields

Skills support YAML frontmatter in SKILL.md for configuration:

Field	Type	Description
name	string	Skill display name
description	string	What the skill does
autoInvoke	array	Trigger phrases for auto-invocation
effort	string	Reasoning effort level (low, medium, high)
shell	string	Shell to use for scripts (bash, zsh, sh)

Reference: 03-skills/ | Official Docs

Quick Install (All Skills):

cp -r 03-skills/* ~/.claude/skills/

Bundled Skills

Skill	Description	When Auto-Invoked
/batch	Run prompts on multiple files	Batch operations
/claude-api	Build apps with Claude API	API development
/debug	Debug failing tests/errors	Debugging sessions
/design (research preview, v2.1.233+)	Create a multi-artboard design canvas — UI mockups, screen flows, landing pages, posters — refined visually instead of in code. Pro/Max/Team/Enterprise	Designing a screen or page you would rather tweak by hand than in HTML
/fewer-permission-prompts	Scan transcripts and propose a prioritized allowlist	Reduce repeat permission prompts
/loop	Run prompts on interval	Recurring tasks
/run (v2.1.145+)	Launch this project's app to see a change running	Verifying a change in the real app
/run-skill-generator (v2.1.145+)	Teach /run//verify how to handle a specific project	First-time project setup for /run
/code-review [low|medium|high|xhigh|max|ultra] [--fix] [--comment] [pr#|branch|path]	Review the current diff — or a PR, branch, or path — for correctness bugs. --fix applies findings, --comment posts them as inline PR comments. With no level given it reuses the last one you typed (v2.1.223). Lower effort levels moved to a background subagent in v2.1.218; high, xhigh, and max followed in v2.1.232, so review output no longer fills the conversation	After writing code, before landing a PR
/simplify (distinct again since v2.1.154)	Cleanup-only review (reuse / simplification / efficiency / altitude) that applies the fixes; does not hunt bugs	Tidying code without a bug hunt
/verify (v2.1.145+)	Build, run, and observe the app to confirm a fix works	Validating a fix end-to-end

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Plugins

Bundled collections of commands, agents, MCP servers, and hooks.

Example Plugins

Plugin	Description	Components	When to Use	Scope	Installation
pr-review	PR review workflow	3 commands, 3 agents, GitHub MCP	Code reviews	Project	/plugin install pr-review
devops-automation	Deployment & monitoring	4 commands, 3 agents, K8s MCP	DevOps tasks	Project	/plugin install devops-automation
documentation	Doc generation suite	4 commands, 3 agents, templates	Documentation	Project	/plugin install documentation

Scope: Project = team-shared, User = personal workflows

Plugin Structure

.claude-plugin/
├── plugin.json       # Manifest file
├── commands/         # Slash commands
├── agents/           # Subagents
├── skills/           # Skills
├── mcp/              # MCP configurations
├── hooks/            # Hook scripts
└── scripts/          # Utility scripts

Reference: 07-plugins/ | Official Docs

Plugin Management Commands:

/plugin list              # List installed plugins
/plugin install <name>    # Install plugin
/plugin remove <name>     # Remove plugin
/plugin update <name>     # Update plugin

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MCP Servers

Model Context Protocol servers for external tool and API access.

Common MCP Servers

Server	Description	When to Use	Scope	Installation
GitHub	PR management, issues, code	GitHub workflows	Project	claude mcp add github -- npx -y @modelcontextprotocol/server-github
Database	SQL queries, data access	Database operations	Project	claude mcp add db -- npx -y @modelcontextprotocol/server-postgres
Filesystem	Advanced file operations	Complex file tasks	User	claude mcp add fs -- npx -y @modelcontextprotocol/server-filesystem
Slack	Team communication	Notifications, updates	Project	Configure in settings
Google Docs	Document access	Doc editing, review	Project	Configure in settings
Asana	Project management	Task tracking	Project	Configure in settings
Stripe	Payment data	Financial analysis	Project	Configure in settings
Memory	Persistent memory	Cross-session recall	User	Configure in settings
Context7	Library documentation	Up-to-date docs lookup	Built-in	Built-in

Scope: Project = team (.mcp.json), User = personal (~/.claude.json), Built-in = pre-installed

MCP Configuration Example

{
  "mcpServers": {
    "github": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-github"],
      "env": {
        "GITHUB_TOKEN": "${GITHUB_TOKEN}"
      }
    }
  }
}

Reference: 05-mcp/ | MCP Protocol Docs

Quick Install (GitHub MCP):

export GITHUB_TOKEN="your_token" && claude mcp add github -- npx -y @modelcontextprotocol/server-github

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Hooks

Event-driven automation that executes shell commands on Claude Code events.

Hook Events

Event	Description	When Triggered	Use Cases
SessionStart	Session begins/resumes	Session initialization	Setup tasks
Setup	Initial environment setup (one-time per session)	First-time session bootstrap	Provision tooling, install deps
InstructionsLoaded	Instructions loaded	CLAUDE.md or rules file loaded	Custom instruction handling
UserPromptSubmit	Before prompt processing	User sends message	Input validation
UserPromptExpansion	User prompt expanded (@-mentions, slash commands resolved)	After expansion, before submit	Transform or inspect expanded prompt
PreToolUse	Before tool execution	Before any tool runs	Validation, logging
PermissionRequest	Permission dialog shown	Before sensitive actions	Custom approval flows
PermissionDenied	User denies a permission prompt	After permission decline	Logging, analytics, policy enforcement
PostToolUse	After tool succeeds	After any tool completes	Formatting, notifications
PostToolUseFailure	Tool execution fails	After tool error	Error handling, logging
PostToolBatch	After a batch of tool uses completes	End of a tool batch	Aggregate reporting, batched validation
Notification	Notification sent	Claude sends notification	External alerts
SubagentStart	Subagent spawned	Subagent task starts	Initialize subagent context
SubagentStop	Subagent finishes	Subagent task complete	Chain actions
Stop	Claude finishes responding	Response complete	Cleanup, reporting
StopFailure	API error ends turn	API error occurs	Error recovery, logging
TeammateIdle	Teammate agent idle	Agent team coordination	Distribute work
TaskCompleted	Task marked complete (only fires when the todo tools are enabled — see Hooks)	Task done	Post-task processing
TaskCreated	Task created via TaskCreate (only fires when the todo tools are enabled — see Hooks)	New task created	Task tracking, logging
ConfigChange	Configuration updated	Settings modified	React to config changes
CwdChanged	Working directory changes	Directory changed	Directory-specific setup
FileChanged	Watched file changes	File modified	File monitoring, rebuild
PreCompact	Before compact operation	Context compression	State preservation
PostCompact	After compaction completes	Compaction done	Post-compact actions
WorktreeCreate	Worktree being created	Git worktree created	Setup worktree environment
WorktreeRemove	Worktree being removed	Git worktree removed	Cleanup worktree resources
Elicitation	MCP server requests input	MCP elicitation	Input validation
ElicitationResult	User responds to elicitation	User responds	Response processing
SessionEnd	Session terminates	Session termination	Cleanup, save state

Example Hooks

Hook	Description	Event	Scope	Installation
pre-tool-check.sh	Blocks/warns on risky Bash commands	PreToolUse:Bash	User	cp 06-hooks/pre-tool-check.sh ~/.claude/hooks/
security-scan.sh	Security scanning	PostToolUse:Write	Project	cp 06-hooks/security-scan.sh .claude/hooks/
format-code.sh	Auto-formatting	PostToolUse:Write	User	cp 06-hooks/format-code.sh ~/.claude/hooks/
validate-prompt.sh	Prompt validation	UserPromptSubmit	Project	cp 06-hooks/validate-prompt.sh .claude/hooks/
context-tracker.py	Token usage tracking	UserPromptSubmit, Stop	User	cp 06-hooks/context-tracker.py ~/.claude/hooks/
context-tracker-tiktoken.py	Token usage tracking (tiktoken, ~90-95% accuracy)	UserPromptSubmit, Stop	User	cp 06-hooks/context-tracker-tiktoken.py ~/.claude/hooks/
pre-commit.sh	Pre-commit validation	PreToolUse:Bash	Project	cp 06-hooks/pre-commit.sh .claude/hooks/
log-bash.sh	Command logging	PostToolUse:Bash	User	cp 06-hooks/log-bash.sh ~/.claude/hooks/
dependency-check.sh	Vulnerability scan on manifest changes	PostToolUse:Write	Project	cp 06-hooks/dependency-check.sh .claude/hooks/
notify-team.sh	Team notifications on git push	PostToolUse:Bash	Project	cp 06-hooks/notify-team.sh .claude/hooks/
session-end.sh	Captures progress when a session ends	SessionEnd	User	cp 06-hooks/session-end.sh ~/.claude/hooks/

Scope: Project = team (.claude/settings.json), User = personal (~/.claude/settings.json)

Hook Configuration

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "command": "~/.claude/hooks/pre-tool-check.sh"
      }
    ],
    "PostToolUse": [
      {
        "matcher": "Write",
        "command": "~/.claude/hooks/format-code.sh"
      }
    ]
  }
}

Reference: 06-hooks/ | Official Docs

Quick Install (All Hooks):

mkdir -p ~/.claude/hooks && cp 06-hooks/*.sh ~/.claude/hooks/ && chmod +x ~/.claude/hooks/*.sh

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Memory Files

Persistent context loaded automatically across sessions.

Memory Types

Type	Location	Scope	When to Use
Managed Policy	Org-managed policies	Organization	Enforce org-wide standards
Project	./CLAUDE.md	Project (team)	Team standards, project context
Project Rules	.claude/rules/	Project (team)	Modular project rules
User	~/.claude/CLAUDE.md	User (personal)	Personal preferences
User Rules	~/.claude/rules/	User (personal)	Modular personal rules
Local	./CLAUDE.local.md	Local (git-ignored)	Machine-specific local overrides (gitignored). Documented at https://code.claude.com/docs/en/memory as a supported per-developer override file.
Auto Memory	Automatic	Session	Auto-captured insights and corrections

Scope: Organization = managed by admins, Project = shared with team via git, User = personal preferences, Local = not committed, Session = auto-managed

Reference: 02-memory/ | Official Docs

Quick Install:

cp 02-memory/project-CLAUDE.md ./CLAUDE.md
cp 02-memory/personal-CLAUDE.md ~/.claude/CLAUDE.md

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New Features

Feature	Description	How to Use
/focus	Toggle focus view for distraction-free output display (v2.1.110)	Run /focus to reduce visual noise during long tasks
/proactive	Alias for /loop — same recurring-task behavior (v2.1.105)	Use /proactive interchangeably with /loop
/recap	Show a session recap when returning to an existing session (v2.1.108)	Run /recap after being away to get context on what was done
/tui	Toggle fullscreen TUI (text user interface) mode for flicker-free rendering (v2.1.110)	Use /tui in fullscreen terminals or tmux
/undo	No longer documented — added as an alias for /rewind in v2.1.108, but it appears nowhere in the official commands reference	Use /rewind (or Esc Esc) instead
Monitor Tool	Watch a background command's stdout stream and react to events instead of polling (v2.1.98+)	Use the Monitor tool via Advanced Features
Output Styles	Change Claude's role, tone, and default response format via the system prompt. Built-ins: Default, Proactive, Explanatory, Learning, Concise	/config → Output style, or set outputStyle. The /output-style command was removed in v2.1.91. See Advanced Features
Status Line	Render a custom status line from a command that receives session, model, cost, and context JSON on stdin	/statusline or the statusLine setting. See Advanced Features
Community Marketplace	Third-party plugins that passed Anthropic's automated validation, each pinned to a commit SHA	/plugin marketplace add anthropics/claude-plugins-community, then /plugin install <name>@claude-community
/team-onboarding	Auto-generate a teammate ramp-up guide from the project's Claude Code setup (v2.1.101)	Run /team-onboarding in your project
Remote Control	Control Claude Code sessions remotely via API. No longer a research preview — any machine running claude remote-control shows up as a device card in the Claude app's Code tab, so a session can be started on it from a phone	Run claude remote-control on the machine, then pick its device card in the Claude app. See Advanced Features
Web Sessions	Run Claude Code in a browser-based environment	Access via claude web or through the Anthropic Console
Desktop App	Native desktop application for Claude Code	Use /desktop or download from Anthropic website
Cross-Session Messaging	Sessions can message each other — including your other machines and cloud sessions — discovered via ListAgents (v2.1.224+, macOS/Linux)	See Advanced Features; control inbound with crossSessionInbound
Self-Hosted Runner	Run Claude Code web, mobile, and desktop sessions on your own machines or containers (v2.1.224+, Team/Enterprise)	claude self-hosted-runner setup; see CLI
archive plugin source	Install a plugin from an HTTPS zip, optionally pinned by sha256 (v2.1.224+)	See Plugins
command plugin source	A locally installed tool prints the plugin directory path (v2.1.229+)	See Plugins
Marketplace owner wildcards	"owner/*" allows or blocks every marketplace repo under a GitHub owner — strictKnownMarketplaces and blockedMarketplaces only (v2.1.223+)	See Plugins
Sandbox credential masking	Sandboxed commands read a sentinel while the proxy substitutes the real secret on egress (v2.1.221+, Linux/WSL)	See Advanced Features
Agent Teams	Coordinate multiple agents working on related tasks	Configure teammate agents that collaborate and share context
Task List	Background task management and monitoring	Use /tasks to view and manage background operations
Prompt Suggestions	Context-aware command suggestions	Suggestions appear automatically based on current context
Git Worktrees	Isolated git worktrees for parallel development	Use worktree commands for safe parallel branch work
Sandboxing	Isolated execution environments for safety	Use /sandbox to toggle; runs commands in restricted environments
MCP OAuth	OAuth authentication for MCP servers	Configure OAuth credentials in MCP server settings for secure access
MCP Tool Search	Search and discover MCP tools dynamically	Use tool search to find available MCP tools across connected servers
Scheduled Tasks	Set up recurring tasks with /loop and cron tools	Use /loop 5m /command or CronCreate tool
Chrome Integration	Browser automation with headless Chromium	Use --chrome flag or /chrome command
Keyboard Customization	Customize keybindings including chord support	Use /keybindings or edit ~/.claude/keybindings.json
Auto Mode	Fully autonomous operation with background safety classifier checks	Shift+Tab to cycle to it, or --permission-mode auto
Channels	Multi-channel communication (Telegram, Slack, etc.) (Research Preview)	Configure channel plugins; March 2026
Voice Dictation	Voice input for prompts	Use microphone icon or voice keybinding
Agent Hook Type	Hooks that spawn a subagent instead of running a shell command	Set "type": "agent" in hook configuration
Prompt Hook Type	Hooks that inject prompt text into the conversation	Set "type": "prompt" in hook configuration
MCP Elicitation	MCP servers can request user input during tool execution	Handle via Elicitation and ElicitationResult hook events
Plugin LSP Support	Language Server Protocol integration via plugins	Configure LSP servers in plugin.json for editor features
Managed Drop-ins	Organization-managed drop-in configurations (v2.1.83)	Admin-configured via managed policies; auto-applied to all users
claude plugin init	Scaffold a new plugin in .claude/skills; such plugins auto-load with no marketplace (v2.1.157)	Run claude plugin init <name>
Auto Mode on third-party providers	Available by default on Amazon Bedrock, Google Cloud's Agent Platform, Microsoft Foundry, and signed-in Claude apps gateway sessions, where the supported models are Claude Sonnet 5, Opus 4.7 or later (which includes Opus 5), and Fable 5 (opt-in required v2.1.158–v2.1.206; removed in v2.1.207 — CLAUDE_CODE_ENABLE_AUTO_MODE is still accepted but has no effect)	Shift+Tab to cycle to it, or --permission-mode auto
Immediate Dialog Commands	/permissions can be opened while Claude is working (rule changes apply to the rest of the turn), and the /add-dir, /autocompact, /theme, /help, /config, and /advisor dialogs open mid-turn in the fullscreen TUI instead of queuing until Claude finishes responding (/bug already did this since v2.1.232) (v2.1.234)	Run one of these commands while Claude is working. See Slash Commands
CLAUDE_CODE_PROJECT_DIR_NAME	Env var controlling per-project transcript directory naming (v2.1.234)	Set in your shell/env before launching Claude Code. See CLI
Goal Check-In Threshold	While a /goal is active, Claude checks in with a status update if a background task makes no progress for 30+ minutes, instead of continuing silently; tune with CLAUDE_CODE_GOAL_CHECKIN_MINUTES, or set to 0 to disable (v2.1.234)	Set CLAUDE_CODE_GOAL_CHECKIN_MINUTES=<n> alongside an active /goal. See Slash Commands
Usage-Limit Auto-Continue	Claude Code auto-continues a session when a claude.ai usage limit resets, if it was blocked on that limit (v2.1.234)	On by default; turn it off in /config → "Continue automatically at usage limit". See Advanced Features
spellcheck setting	Underlines misspelled words in the prompt input using whichever of aspell, hunspell, or ispell is on your PATH; off by default (v2.1.235)	Install a checker, then set "spellcheck": { "enabled": true } in ~/.claude/settings.json. User, --settings, and managed settings only — ignored in project settings. See Advanced Features
Agent Teams Default Model	The "Default teammate model" /config setting was removed; teammates now inherit the team lead's model by default unless the spawn call specifies one explicitly (v2.1.234)	See Subagents — Agent Teams
/design	Design canvas — a multi-artboard visual design (UI mockups, screen flows, landing pages, posters) built on artifacts and refined visually rather than in code. Research preview; requires v2.1.233+; Pro/Max/Team/Enterprise	Run /design in the CLI or the Desktop app. See Slash Commands
notify_when_idle	Cross-session SendMessage input that asks another session on the same machine to send one notice when it next goes idle — opt-in, one-shot, no polling (v2.1.236). Related: ListAgents reports the session's own name and lists live teammates, and Windows gained cross-session messaging (v2.1.239)	Pass notify_when_idle to SendMessage. See Advanced Features
Plugin manifest fields	plugin.json accepts workflows, channels, dependencies (semver), outputStyles, keywords, metadata, lspServers, and experimental.themes / experimental.monitors. CLI gained claude plugin new, remove/rm, prune/autoremove, and the flags --with, -f/--force, --available, --push, --dry-run	See Plugins

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Quick Reference Matrix

Feature Selection Guide

Need	Recommended Feature	Why
Quick shortcut	Slash Command	Manual, immediate
Persistent context	Memory	Auto-loaded
Complex automation	Skill	Auto-invoked
Specialized task	Subagent	Isolated context
External data	MCP Server	Real-time access
Event automation	Hook	Event-triggered
Complete solution	Plugin	All-in-one bundle

Installation Priority

Priority	Feature	Command
1. Essential	Memory	cp 02-memory/project-CLAUDE.md ./CLAUDE.md
2. Daily Use	Slash Commands	cp 01-slash-commands/*.md .claude/commands/
3. Quality	Subagents	cp 04-subagents/*.md .claude/agents/
4. Automation	Hooks	cp 06-hooks/*.sh ~/.claude/hooks/ && chmod +x ~/.claude/hooks/*.sh
5. External	MCP	claude mcp add github -- npx -y @modelcontextprotocol/server-github
6. Advanced	Skills	cp -r 03-skills/* ~/.claude/skills/
7. Complete	Plugins	/plugin install pr-review

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Complete One-Command Installation

Install all examples from this repository:

# Create directories
mkdir -p .claude/{commands,agents,skills} ~/.claude/{hooks,skills}

# Install all features
cp 01-slash-commands/*.md .claude/commands/ && \
cp 02-memory/project-CLAUDE.md ./CLAUDE.md && \
cp -r 03-skills/* ~/.claude/skills/ && \
cp 04-subagents/*.md .claude/agents/ && \
cp 06-hooks/*.sh ~/.claude/hooks/ && \
chmod +x ~/.claude/hooks/*.sh

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Additional Resources

• Official Claude Code Documentation
• MCP Protocol Specification
• Learning Roadmap
• Main README

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Last Updated: August 25, 2026 Claude Code Version: 2.1.245 Sources:

• https://code.claude.com/docs/en/sub-agents
• https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md
• https://code.claude.com/docs/en/overview
• https://code.claude.com/docs/en/commands
• https://code.claude.com/docs/en/hooks
• https://code.claude.com/docs/en/permission-modes
• https://code.claude.com/docs/en/changelog#2-1-172
• https://code.claude.com/docs/en/changelog#2-1-174
• https://github.com/anthropics/claude-code/releases/tag/v2.1.145
• https://github.com/anthropics/claude-code/releases/tag/v2.1.154
• https://code.claude.com/docs/en/plugins
• https://code.claude.com/docs/en/cli-reference
• https://code.claude.com/docs/en/model-config
• https://code.claude.com/docs/en/skills
• https://code.claude.com/docs/en/plugin-marketplaces
• https://code.claude.com/docs/en/discover-plugins
• https://code.claude.com/docs/en/settings Compatible Models: Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Sonnet 4.6, Claude Opus 4.8, Claude Haiku 4.5