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create_email_folder

Create a new email folder or mailbox in macOS Mail to organize messages and manage inbox structure via AI agents.

Instructions

Create a new email folder/mailbox

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Implementation Reference

  • server.js:82-86 (handler)
    Generic stub handler for all tools including 'create_email_folder'. Returns a message indicating this is an inspection stub and directs users to install the actual Pilot MCP on macOS.
    for (const [name, desc] of TOOLS) {
      server.tool(name, desc, {}, async () => ({
        content: [{ type: "text", text: "This is an inspection stub. Install Pilot MCP on macOS: npx -y local-mcp@latest setup" }],
      }));
    }
  • server.js:74-75 (registration)
    The 'create_email_folder' tool entry in the TOOLS array, defining the tool name and description that gets registered with the MCP server.
    ["list_accounts", "List configured email and calendar accounts"],
    ["create_email_folder", "Create a new email folder/mailbox"],
  • server.js:13-80 (registration)
    The complete TOOLS array containing all available tools including 'create_email_folder' at index 75.
    const TOOLS = [
      ["list_emails", "List emails from Mail.app inbox with optional filters"],
      ["read_email", "Read full email content by ID"],
      ["search_emails", "Search emails by keyword, sender, or date range"],
      ["send_email", "Compose and send a new email"],
      ["reply_email", "Reply to an existing email"],
      ["move_email", "Move email to a different mailbox"],
      ["save_attachment", "Save email attachment to disk"],
      ["list_calendar_names", "List available calendars"],
      ["list_calendar_events", "List calendar events for a date range"],
      ["create_calendar_event", "Create a new calendar event"],
      ["delete_calendar_event", "Delete a calendar event with preview"],
      ["list_reminders", "List reminders from a specific list"],
      ["list_reminder_lists", "List all reminder lists"],
      ["create_reminder", "Create a new reminder"],
      ["complete_reminder", "Mark a reminder as complete"],
      ["list_contacts", "List contacts from the address book"],
      ["search_contacts", "Search contacts by name, email, or phone"],
      ["get_contact", "Get full contact details by name"],
      ["list_notes", "List notes from Apple Notes"],
      ["read_note", "Read full note content"],
      ["create_note", "Create a new note in Apple Notes"],
      ["search_notes", "Search notes by keyword"],
      ["list_message_chats", "List recent iMessage conversations"],
      ["read_messages", "Read messages from a conversation"],
      ["search_messages", "Search iMessages by keyword"],
      ["list_omnifocus_tasks", "List tasks from OmniFocus"],
      ["list_omnifocus_projects", "List OmniFocus projects"],
      ["create_omnifocus_task", "Create a new task in OmniFocus"],
      ["complete_omnifocus_task", "Mark an OmniFocus task complete"],
      ["search_omnifocus_tasks", "Search OmniFocus tasks"],
      ["list_omnifocus_tags", "List OmniFocus tags"],
      ["outlook_list_emails", "List emails from Microsoft Outlook"],
      ["outlook_read_email", "Read an Outlook email"],
      ["outlook_search_emails", "Search Outlook emails"],
      ["outlook_send_email", "Send email via Outlook"],
      ["outlook_list_events", "List Outlook calendar events"],
      ["outlook_create_event", "Create Outlook calendar event"],
      ["onedrive_list_files", "List files and folders in OneDrive"],
      ["onedrive_read_file", "Read file content from OneDrive"],
      ["onedrive_search_files", "Search files in OneDrive"],
      ["onedrive_write_file", "Write or upload file to OneDrive"],
      ["onedrive_delete_file", "Delete file from OneDrive"],
      ["onedrive_move_file", "Move or rename file in OneDrive"],
      ["finder_list", "List files in a Finder directory"],
      ["finder_search", "Search files using Spotlight"],
      ["pdf_read", "Read text content from a PDF file"],
      ["word_read", "Read content from a Word document"],
      ["word_create", "Create a new Word document"],
      ["word_append", "Append content to a Word document"],
      ["excel_read", "Read data from an Excel spreadsheet"],
      ["excel_create", "Create a new Excel spreadsheet"],
      ["excel_write_cell", "Write data to Excel cells"],
      ["ppt_read", "Read content from a PowerPoint file"],
      ["ppt_create", "Create a new PowerPoint presentation"],
      ["teams_list_chats", "List Microsoft Teams chat conversations"],
      ["teams_read_chat_messages", "Read messages from a Teams chat"],
      ["teams_list_teams", "List Teams and their channels"],
      ["teams_list_channels", "List channels in a Teams team"],
      ["teams_read_channel_messages", "Read messages from a Teams channel"],
      ["list_safari_bookmarks", "List Safari bookmarks"],
      ["list_accounts", "List configured email and calendar accounts"],
      ["create_email_folder", "Create a new email folder/mailbox"],
      ["diagnose", "Run diagnostic checks on all connected services"],
      ["report_bug", "Report a bug or issue to the development team"],
      ["request_feature", "Request a new feature"],
      ["request_integration", "Request integration with an unsupported app"],
    ];
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations provided, so description carries full burden. 'Create' implies mutation but lacks disclosure of idempotency, error handling (e.g., duplicate folder names), reversibility, or account scoping. Fails to establish safety profile or side effects.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Single sentence immediately states purpose with zero redundancy. Appropriate length for a parameter-less tool where the name itself carries most semantic weight.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Minimum viable for a zero-parameter tool, but omits critical context given the ecosystem: doesn't specify which email account receives the folder (despite list_accounts sibling existing) or default account behavior. Output schema absence is acceptable per rules.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Zero parameters in input schema per context signals. Baseline score of 4 applies as there are no parameters requiring semantic clarification beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States specific verb ('Create') and resource ('email folder/mailbox'), clearly distinguishing from sibling create tools like create_calendar_event or create_note by specifying the email domain. However, it doesn't clarify scope relative to other email operations like move_email.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Provides no guidance on when to use this versus alternatives, nor prerequisites such as account selection (despite the existence of list_accounts suggesting multi-account support). No exclusions or failure modes mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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