Built-in Tools

Reference for every built-in tool Mobile Agent exposes to models, grouped by capability.

Mobile Agent exposes a set of built-in tools that any connected model can call. Which tools are available is controlled per conversation and per agent through the approval system (see Tool Approvals).

Each tool has a stable key of the form camelCaseName. The full set:

Workspace

Operate on the app's private workspace directory.

Tool key	Description
`workspaceListFiles`	List files and directories in the workspace.
`workspaceRead`	Read a file's contents.
`workspaceWrite`	Write content to a file (creates or overwrites).
`workspaceCreateFile`	Create a new empty file.
`workspaceGrep`	Search file contents with a regular expression.
`workspaceGlob`	Find files matching a glob pattern.
`workspaceEdit`	Apply a targeted edit to an existing file.

External folders

Operate on a mounted external folder session (Storage Access Framework).

Tool key	Description
`folderListDirectory`	List entries in a mounted external folder.
`folderRead`	Read a file from an external folder.
`folderWrite`	Write to a file in an external folder.
`folderCreateFile`	Create a file in an external folder.
`folderCreateDirectory`	Create a directory in an external folder.
`folderRenameEntry`	Rename a file or directory.
`folderMoveEntry`	Move a file or directory to a new location.
`folderDeleteEntry`	Delete a file or directory.
`folderGrep`	Search external-folder file contents.
`folderGlob`	Find external-folder files by glob.
`folderEdit`	Apply a targeted edit in an external folder.

Files & downloads

Tool key	Description
`downloadFile`	Download a URL into the workspace.

Conversation & orchestration

Tool key	Description
`todos`	Read and update the conversation's todo list (pending / in_progress / completed).
`question`	Ask you a structured question mid-run (freeform, choices, or multi-select).
`skill`	Activate or manage a skill during the conversation.
`schedules`	Create, update, or list scheduled jobs.
`requestSecret`	Prompt you to configure an API key or token securely for a plugin or server.

Workflow notes

Tool approval — mutating tools (writes, deletes, downloads, terminal, schedules) pause the run in waiting_for_approval until approved. This gate cannot be disabled globally per tool beyond the per-conversation ask/auto mode.
Custom agents restrict which of these tools each agent may use — even if a tool is enabled globally, an agent with it disabled in its permissions cannot call it.
Skills alias mapping — some skills refer to tools by natural aliases; the app resolves common aliases (e.g. "file read", "grep") to the built-in keys above. This lets a skill written in plain language work without knowing exact keys.

Tool execution timeline

Every tool call is recorded in the message timeline with:

toolName and status (running / completed / failed)
inputSummary and outputSummary
error (when failed)
optional termux capture (command, output, taskId) when the tool ran a terminal command

Use the timeline to audit exactly what the agent did — the approval system controls the action, and the timeline records it.