FeaturesNew 2026-05

Background sessions (claude --bg)

Runs a session in the background and lets you attach to it later. It has attach, logs and stop subcommands.

Usage

claude --bg "문서 정리"

When to use it

When you are handing off a long-running task.

Source: https://code.claude.com/docs/en/agent-view

Related

/backgroundDetaches the current session as a background agent.Claude CodeCommandsNew 2026-05 agent viewShows all sessions (running, waiting, finished) in one list and lets you send tasks in parallel.Claude CodeFeaturesNew 2026-05

More Claude Code features

CLAUDE.mdA project instructions file that is read every session.Features auto memoryClaude notes your corrections and preferences on its own and uses them in later sessions.Features Skills (.claude/skills/name/SKILL.md)A bundle of instructions and materials that is invoked automatically when needed or with /name.FeaturesNew 2026-01 Subagents (.claude/agents/*.md)Helper agents with their own context, tools and prompt.Features agent viewShows all sessions (running, waiting, finished) in one list and lets you send tasks in parallel.FeaturesNew 2026-05 Dynamic workflow / ultracodeCoordinates dozens to hundreds of agents in the background. Include ultracode in your prompt to start it.FeaturesNew 2026-05

All Claude Code