Tools come in toolsets, and an agent lists the ones it gets under toolsets. Without the setting it gets core, memory, skills, schedule, delegate and board. A list replaces the default, so add the defaults you want to keep:

yaml

agents:
  habakkuk:
    toolsets: [core, memory, skills, schedule, delegate, board, browser]

What a tool may do on its own is decided by the agent's permission mode and approvals.

If you need X, use Y#

You need the agent to	Use	Page
Read, write and patch files, run commands	`core` (default)	Files and shell
Run commands in a container or on another host	`sandbox: docker` or `ssh`	Files and shell
Undo what a turn changed in the workspace	checkpoints (on by default), `/undo`	Files and shell
Browse the web, fill in forms, use sites you are signed in to	`browser`	Browser
Drive desktop apps with the mouse and keyboard	`computer`	Computer use
Search the web	hosted search, or `search:`	Media and web search
Read images, PDFs and Office files; make images and video	`core` with `images:` or `video:`	Media and web search
Talk out loud, or answer voice notes with voice	`realtime:`, `habakkuk talk`, `tts:`	Voice
Sit in a video call and take notes	`meeting`	Meetings
Use GitHub, Linear, Notion, a database and hundreds more	`mcp:<server>`	MCP
Install someone's packaged skills, tools and commands	`habakkuk plugins install`	Plugins
Control Home Assistant, talk to other agents, lend it a phone's camera	`homeassistant`, `a2a`, device nodes	Integrations
Remember things and follow skills	`memory`, `skills` (default)	Memory, Skills
Schedule work and hand it to other agents	`schedule`, `delegate`, `board` (default)	Schedules, Multi-agent

Toolsets#

Toolset	Tools
`core`	`read_file`, `write_file`, `edit_file`, `list_dir`, `exec`, `apply_patch`, `search_files`, `fetch_url`, background processes, `todo`, `clarify`, `view_image`, `read_document`; with channels `send_file` and `poll`; `image_generate`, `video_generate`, `speak`, `nodes_list` and `node_invoke` when configured
`memory`	`memory_save`, `memory_search`, `memory_read`, `memory_forget`, `user_profile_read`, `user_profile_update`, `session_search`, `memory_history`
`skills`	`skill_view`, `skill_file`, `skill_save`
`schedule`	`schedule_create` and friends
`delegate`	`delegate`
`board`	`board_*`
`browser`	`browser_*`
`computer`	`computer_*`
`meeting`	`meeting_join`, `meeting_leave`, `meeting_status`, `meeting_transcript`
`homeassistant`	`ha_states`, `ha_call_service`, `ha_history`
`a2a`	`a2a_discover`, `a2a_send`
`mcp:<server>`	One per MCP server, named `mcp__<server>__<tool>`

An agent with a home chat also gets message_home.

Tool search#

An agent whose toolsets hold more tools than tool_search_over (default 60; -1 turns it off), usually from MCP servers, is offered only the core tools plus tool_search and tool_describe. The tools it finds are added for the rest of the session.

yaml

agents:
  habakkuk:
    tool_search_over: 60

If you need X, use Y#

Toolsets#

Tool search#

In this section