// MCP TOOL REFERENCE

NUCLEUS APPLE TOOLS

30 tools from the Nucleus Apple MCP Server, categorised by risk level.

// ALL 30 NUCLEUS APPLE TOOLS

READ 19 tools

Read calendar.list_calendars List event calendars. Read calendar.list_events List events within a time range. Read calendar.list_sources List calendar sources/accounts. Read health.analyze_range Analyze a Health date range using exported daily snapshots only. Returns metric summaries, segment trends, ... Read health.inspect_day Inspect one day by combining the daily snapshot with the raw manifest, and explain metric/raw gaps. Read health.list_changes List health sync commits after an optional cursor, with optional per-date raw type details from raw manifests. Read health.list_sample_catalog List known Health raw sample types, kinds, tags, and how they relate to daily metrics. Read health.read_daily_metrics Read one day Read health.read_daily_raw Read one day Read health.read_range_metrics Read a date range of exported daily metrics using monthly indexes. Missing dates are reported, not treated ... Read health.read_samples Read raw Health samples across one or more dates, filtered by type_keys/tags/kinds, with manifest-aware pag... Read notes.get_note Fetch a note with optional content and attachments. Read notes.list_accounts List Notes accounts. Read notes.list_attachments List attachments for a note. Read notes.list_folders List Notes folders. Read notes.list_notes List notes (metadata-first). Read reminders.list_lists List reminder lists. Read reminders.list_reminders List reminders by filters. Read reminders.list_sources List reminder sources/accounts.

WRITE 8 tools

Write notes.save_attachment Export an attachment to a file path. Write calendar.create_event Create a calendar event. Write calendar.update_event Update an existing calendar event. Write notes.add_attachment Add attachment(s) to a note from local file paths. Write notes.create_note Create a new note. Write notes.update_note Update an existing note. Write reminders.create_reminder Create a reminder. Write reminders.update_reminder Update an existing reminder.

DESTRUCTIVE 3 tools

Destructive calendar.delete_event Delete a calendar event. Destructive notes.delete_note Delete a note. Destructive reminders.delete_reminder Delete a reminder.

// FAQ

How many tools does the Nucleus Apple MCP server have? +

The Nucleus Apple MCP server exposes 30 tools across 3 categories: Read, Write, Destructive.

How do I enforce policies on Nucleus Apple tools? +

Route the Nucleus Apple server through the PolicyLayer gateway. Define allow, deny, or approval rules per tool in the dashboard; they are enforced on every call before it reaches the server.

What risk categories do Nucleus Apple tools fall into? +

Nucleus Apple tools are categorised as Read (19), Write (8), Destructive (3). Each category has a recommended default policy.

Enforce policy on every Nucleus Apple tool call.

Start from Nucleus Apple, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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