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Softeria

Microsoft 365 MCP Server

by Softeria
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TypeScript
Hybrid

list-calendar-events

list-calendar-events
Read-only

Retrieve calendar events from a user's mailbox, returning single instances and series masters. Ideal for listing scheduled items without expanding recurring occurrences.

Instructions

Get a list of event objects in the user's mailbox. The list contains single instance meetings and series masters. To get expanded event instances, you can get the calendar view, or get the instances of an event. Currently, this operation returns event bodies in only HTML format. There are two scenarios where an app can get events in another user's calendar:

💡 TIP: WARNING: Does NOT expand recurring events — only returns seriesMaster. Use get-calendar-view instead to see individual occurrences within a date range.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
topNoPage size (Graph $top). Start small (e.g. 5–15) so responses fit the model context; raise only if needed. Use $select to return fewer fields per item. For more rows, use @odata.nextLink from the response instead of a very large $top.
skipNoItems to skip for pagination. Not supported with $search.
countNoSet true to enable advanced query mode (ConsistencyLevel: eventual). Required for complex $filter on flag/flagStatus or contains().
expandNoNavigation properties to inline, e.g. attachments on a message or event. Only navigation properties can be expanded: expanding a non-navigation property such as a message body fails with "Parsing OData Select and Expand failed", and an unsupported value may be ignored rather than reported. Request ordinary fields with $select instead.
filterNoOData filter expression. Add $count=true for advanced filters (flag/flagStatus, contains()). Cannot combine with $search.
searchNoKQL search query in one pair of double quotes; directory (users/groups) instead quotes each clause with no outer pair. Cannot combine with $filter.
selectNoComma-separated fields to return, e.g. id,subject,from,receivedDateTime
orderbyNoSort expression, e.g. receivedDateTime desc
timezoneNoIANA timezone name (e.g., "America/New_York", "Europe/London", "Asia/Tokyo") for calendar event times. If not specified, times are returned in UTC.
skiptokenNoNext page: the @odata.nextLink from the previous response. Keep the other arguments the same.
fetchAllPagesNoFollow @odata.nextLink and merge up to 100 pages into one response. Can return enormous payloads—only when the user explicitly needs a full export. Prefer a small $top first, then paginate or narrow with $filter/$search.
includeHeadersNoInclude response headers (including ETag) in the response metadata
excludeResponseNoExclude the full response body and only return success or failure indication
expandExtendedPropertiesNoWhen true, expands singleValueExtendedProperties on each event. Use this to retrieve custom extended properties (e.g., sync metadata) stored on calendar events.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed11 schema fields changedv0.154.2
    • addedInput schema / properties / expand / anyOf
      Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "items": {
+      "type": "string"
+    },
+    "type": "array"
+  }
+]
    • removedInput schema / properties / expand / items
      Removed value: -{
-  "type": "string"
-}
    • removedInput schema / properties / expand / type
      Removed value: -"array"
    • addedInput schema / properties / orderby / anyOf
      Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "items": {
+      "type": "string"
+    },
+    "type": "array"
+  }
+]
    • removedInput schema / properties / orderby / type
      Removed value: -"string"
    • addedInput schema / properties / select / anyOf
      Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "items": {
+      "type": "string"
+    },
+    "type": "array"
+  }
+]
    • removedInput schema / properties / select / type
      Removed value: -"string"
    • addedInput schema / properties / skip / minimum
      Added value: +0
    • changedInput schema / properties / skip / type
      Previous value: -"number"New value: +"integer"
    • addedInput schema / properties / top / minimum
      Added value: +0
    • changedInput schema / properties / top / type
      Previous value: -"number"New value: +"integer"
  2. Changed1 schema field changedv0.154.0
    • changedInput schema / properties / skiptoken / description
      Previous value: -"Opaque cursor for the next page, taken from the previous response. Copy the $skiptoken value out of @odata.nextLink (or paste the whole nextLink URL — the token is extracted from it) and resend it with the SAME $filter/$select/$expand/$top as the first call. Use this to walk pages one at a time instead of fetchAllPages. Omit it for the first page."New value: +"Next page: the @odata.nextLink from the previous response. Keep the other arguments the same."
  3. Changed2 schema fields changedv0.153.0
    • changedInput schema / properties / search / description
      Previous value: -"KQL search query — wrap value in double quotes. Cannot combine with $filter."New value: +"KQL search query in one pair of double quotes; directory (users/groups) instead quotes each clause with no outer pair. Cannot combine with $filter."
    • addedInput schema / properties / skiptoken
      Added value: +{
+  "description": "Opaque cursor for the next page, taken from the previous response. Copy the $skiptoken value out of @odata.nextLink (or paste the whole nextLink URL — the token is extracted from it) and resend it with the SAME $filter/$select/$expand/$top as the first call. Use this to walk pages one at a time instead of fetchAllPages. Omit it for the first page.",
+  "type": "string"
+}
  4. Addedv0.134.4
  5. Removedv0.131.2
  6. Addedv0.114.0
  7. Removedv0.112.2
  8. Addedv0.110.0
  9. Removedv0.108.0
  10. Changed17 schema fields changedv0.96.0
    • changedInput schema / properties / count / description
      Previous value: -"Include count of items"New value: +"Set true to enable advanced query mode (ConsistencyLevel: eventual). Required for complex $filter on flag/flagStatus or contains()."
    • addedInput schema / properties / expandExtendedProperties
      Added value: +{
+  "description": "When true, expands singleValueExtendedProperties on each event. Use this to retrieve custom extended properties (e.g., sync metadata) stored on calendar events.",
+  "type": "boolean"
+}
    • changedInput schema / properties / fetchAllPages / description
      Previous value: -"Automatically fetch all pages of results"New value: +"Follow @odata.nextLink and merge up to 100 pages into one response. Can return enormous payloads—only when the user explicitly needs a full export. Prefer a small $top first, then paginate or narrow with $filter/$search."
    • changedInput schema / properties / filter / description
      Previous value: -"Filter items by property values"New value: +"OData filter expression. Add $count=true for advanced filters (flag/flagStatus, contains()). Cannot combine with $search."
    • changedInput schema / properties / orderby / description
      Previous value: -"Order items by property values"New value: +"Sort expression, e.g. receivedDateTime desc"
    • removedInput schema / properties / orderby / items
      Removed value: -{
-  "type": "string"
-}
    • changedInput schema / properties / orderby / type
      Previous value: -"array"New value: +"string"
    • changedInput schema / properties / search / description
      Previous value: -"Search items by search phrases"New value: +"KQL search query — wrap value in double quotes. Cannot combine with $filter."
    • changedInput schema / properties / select / description
      Previous value: -"Select properties to be returned"New value: +"Comma-separated fields to return, e.g. id,subject,from,receivedDateTime"
    • removedInput schema / properties / select / items
      Removed value: -{
-  "type": "string"
-}
    • changedInput schema / properties / select / type
      Previous value: -"array"New value: +"string"
    • changedInput schema / properties / skip / description
      Previous value: -"Skip the first n items"New value: +"Items to skip for pagination. Not supported with $search."
    • removedInput schema / properties / skip / minimum
      Removed value: -0
    • changedInput schema / properties / skip / type
      Previous value: -"integer"New value: +"number"
    • changedInput schema / properties / top / description
      Previous value: -"Show only the first n items"New value: +"Page size (Graph $top). Start small (e.g. 5–15) so responses fit the model context; raise only if needed. Use $select to return fewer fields per item. For more rows, use @odata.nextLink from the response instead of a very large $top."
    • removedInput schema / properties / top / minimum
      Removed value: -0
    • changedInput schema / properties / top / type
      Previous value: -"integer"New value: +"number"
  11. First observedv0.31.0

TDQS

A4/5.0
Behavior5/5

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

Adds valuable behavioral details beyond the readOnlyHint/destructiveHint annotations: recurring events are not expanded (only seriesMaster is returned), event bodies are only in HTML format, and it points to alternatives for expanded instances. These are non-obvious traits that materially affect how an agent interprets the results.

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

Conciseness2/5

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

The description contains a dangling sentence ('There are two scenarios where an app can get events in another user's calendar:') that is never completed, and the warning is awkwardly formatted with emoji and mixed tip/warning labels. While the core information is valuable, the structure is messy and not every sentence earns its place.

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?

The description covers the key behavioral distinction (seriesMaster vs expanded instances) and points to the relevant alternative, but the incomplete 'two scenarios' section leaves a gap about accessing another user's calendar. With 14 parameters and no output schema, the description provides a reasonable but not fully complete picture.

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

Parameters3/5

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

Schema description coverage is 100%, so all 14 parameters are already documented with rich details in the input schema. The tool description does not add any extra parameter-specific meaning, so the baseline of 3 is appropriate.

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

Purpose5/5

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

States a specific verb and resource ('Get a list of event objects in the user's mailbox') and immediately distinguishes itself from related tools by noting it returns series masters and single instances, and explicitly flags that it does not expand recurring events. This makes it easy to separate from get-calendar-view and list-calendar-event-instances.

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

Usage Guidelines4/5

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

Explicitly tells the agent when not to use this tool: it does not expand recurring events, and directs to get-calendar-view for individual occurrences within a date range. However, the mention of 'two scenarios where an app can get events in another user's calendar' is cut off and never explained, leaving some usage context incomplete.

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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