Tools

Claude has many built-in tools to help you get the job done. * = permission required.

• Agent — spawns a subagent with its own context window to handle a task.
• AskUserQuestion — asks multiple-choice questions to gather requirements or clarify ambiguity.
• Bash* — executes shell commands in your environment.
• CronCreate — schedules a recurring or one-shot prompt within the current session (gone when Claude exits).
• CronDelete — cancels a scheduled task by ID.
• CronList — lists all scheduled tasks in the session.
• Edit* — makes targeted edits to specific files.
• EnterPlanMode — switches to plan mode to design an approach before coding.
• EnterWorktree — creates an isolated git worktree and switches into it.
• ExitPlanMode* — presents a plan for approval and exits plan mode.
• ExitWorktree — exits a worktree session and returns to the original directory.
• Glob — finds files based on pattern matching.
• Grep — searches for patterns in file contents.
• ListMcpResourcesTool — lists resources exposed by connected MCP servers.
• LSP — code intelligence via language servers; reports type errors and warnings automatically after file edits, and supports navigation operations like jump to definitions, find references, type info, and call hierarchies.
• NotebookEdit* — modifies Jupyter notebook cells.
• Read — reads the contents of files.
• ReadMcpResourceTool — reads a specific MCP resource by URI.
• Skill* — executes a skill within the main conversation.
• ToolSearch — searches for and loads deferred tools when tool search is enabled.
• WebFetch* — fetches content from a specified URL.
• WebSearch* — performs web searches.
• Write* — creates or overwrites files.

Task management tools (interactive sessions use TaskCreate/TaskGet/TaskList/TaskUpdate; non-interactive mode and the Agent SDK use TodoWrite):

• TaskCreate — creates a new task in the task list.
• TaskGet — retrieves full details for a specific task.
• TaskList — lists all tasks with their current status.
• TaskOutput — retrieves output from a background task.
• TaskStop — kills a running background task by ID.
• TaskUpdate — updates task status, dependencies, details, or deletes tasks.
• TodoWrite — manages the session task checklist.

Related: Tool Calls, Permission Rules, MCP, Subagents, Language Server Protocol, Scheduling, EnterWorktree