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Microsoft 365 MCP Server

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update-planner-task

update-planner-task
Destructive

Update a Microsoft Planner task's properties such as title, priority, or due date. Requires the task's ETag to prevent conflicts.

Instructions

Update the properties of plannerTask object.

šŸ’” TIP: CRITICAL: Requires If-Match header with the task's @odata.etag value, otherwise returns 412 Precondition Failed. Get the ETag from get-planner-task with includeHeaders=true. Priority is 0-10 (lower = higher priority); Planner's own UI presets are 1=Urgent, 3=Important, 5=Medium, 9=Low.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
bodyYes
confirmNoFor destructive operations when the confirm gate is enabled (MS365_MCP_REQUIRE_CONFIRM=true; off by default). Set to true only after the user has explicitly approved this action. When the gate is on, calls without confirm: true return { error: "confirmation_required" } without touching user data.
If-MatchYesETag value.
plannerTaskIdYesValue for the 'plannerTaskId' path segment. Pass it under the name 'plannerTaskId', not as 'id'. Use the 'id' field of the planner task object as returned by Microsoft Graph.
includeHeadersNoInclude response headers (including ETag) in the response metadata
excludeResponseNoExclude the full response body and only return success or failure indication

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed15 schema fields changedv0.145.2
    • removedInput schema / $defs
      Removed value: -{
-  "def0": {
-    "additionalProperties": true,
-    "properties": {
-      "application": {
-        "$ref": "#/$defs/def1"
-      },
-      "device": {
-        "$ref": "#/$defs/def1"
-      },
-      "user": {
-        "$ref": "#/$defs/def1"
-      }
-    },
-    "type": "object"
-  },
-  "def1": {
-    "additionalProperties": true,
-    "properties": {
-      "displayName": {
-        "description": "The display name of the identity.For drive items, the display name might not always be available or up to date. For example, if a user changes their display name the API might show the new value in a future response, but the items associated with the user don't show up as changed when using delta.",
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "id": {
-        "description": "Unique identifier for the identity or actor. For example, in the access reviews decisions API, this property might record the id of the principal, that is, the group, user, or application that's subject to review.",
-        "type": [
-          "string",
-          "null"
-        ]
-      }
-    },
-    "type": "object"
-  },
-  "def2": {
-    "enum": [
-      "automatic",
-      "noPreview",
-      "checklist",
-      "description",
-      "reference"
-    ],
-    "type": "string"
-  }
-}
    • removedInput schema / properties / body / properties / completedBy / $ref
      Removed value: -"#/$defs/def0"
    • addedInput schema / properties / body / properties / completedBy / additionalProperties
      Added value: +true
    • addedInput schema / properties / body / properties / completedBy / properties
      Added value: +{
+  "application": {
+    "additionalProperties": true,
+    "properties": {
+      "displayName": {
+        "description": "The display name of the identity.For drive items, the display name might not always be available or up to date. For example, if a user changes their display name the API might show the new value in a future response, but the items associated with the user don't show up as changed when using delta.",
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "id": {
+        "description": "Unique identifier for the identity or actor. For example, in the access reviews decisions API, this property might record the id of the principal, that is, the group, user, or application that's subject to review.",
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  },
+  "device": {
+    "additionalProperties": true,
+    "properties": {
+      "displayName": {
+        "description": "The display name of the identity.For drive items, the display name might not always be available or up to date. For example, if a user changes their display name the API might show the new value in a future response, but the items associated with the user don't show up as changed when using delta.",
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "id": {
+        "description": "Unique identifier for the identity or actor. For example, in the access reviews decisions API, this property might record the id of the principal, that is, the group, user, or application that's subject to review.",
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  },
+  "user": {
+    "additionalProperties": true,
+    "properties": {
+      "displayName": {
+        "description": "The display name of the identity.For drive items, the display name might not always be available or up to date. For example, if a user changes their display name the API might show the new value in a future response, but the items associated with the user don't show up as changed when using delta.",
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "id": {
+        "description": "Unique identifier for the identity or actor. For example, in the access reviews decisions API, this property might record the id of the principal, that is, the group, user, or application that's subject to review.",
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  }
+}
    • addedInput schema / properties / body / properties / completedBy / type
      Added value: +"object"
    • removedInput schema / properties / body / properties / createdBy / $ref
      Removed value: -"#/$defs/def0"
    • addedInput schema / properties / body / properties / createdBy / additionalProperties
      Added value: +true
    • addedInput schema / properties / body / properties / createdBy / properties
      Added value: +{
+  "application": {
+    "additionalProperties": true,
+    "properties": {
+      "displayName": {
+        "description": "The display name of the identity.For drive items, the display name might not always be available or up to date. For example, if a user changes their display name the API might show the new value in a future response, but the items associated with the user don't show up as changed when using delta.",
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "id": {
+        "description": "Unique identifier for the identity or actor. For example, in the access reviews decisions API, this property might record the id of the principal, that is, the group, user, or application that's subject to review.",
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  },
+  "device": {
+    "additionalProperties": true,
+    "properties": {
+      "displayName": {
+        "description": "The display name of the identity.For drive items, the display name might not always be available or up to date. For example, if a user changes their display name the API might show the new value in a future response, but the items associated with the user don't show up as changed when using delta.",
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "id": {
+        "description": "Unique identifier for the identity or actor. For example, in the access reviews decisions API, this property might record the id of the principal, that is, the group, user, or application that's subject to review.",
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  },
+  "user": {
+    "additionalProperties": true,
+    "properties": {
+      "displayName": {
+        "description": "The display name of the identity.For drive items, the display name might not always be available or up to date. For example, if a user changes their display name the API might show the new value in a future response, but the items associated with the user don't show up as changed when using delta.",
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "id": {
+        "description": "Unique identifier for the identity or actor. For example, in the access reviews decisions API, this property might record the id of the principal, that is, the group, user, or application that's subject to review.",
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  }
+}
    • addedInput schema / properties / body / properties / createdBy / type
      Added value: +"object"
    • removedInput schema / properties / body / properties / details / properties / previewType / $ref
      Removed value: -"#/$defs/def2"
    • addedInput schema / properties / body / properties / details / properties / previewType / enum
      Added value: +[
+  "automatic",
+  "noPreview",
+  "checklist",
+  "description",
+  "reference"
+]
    • addedInput schema / properties / body / properties / details / properties / previewType / type
      Added value: +"string"
    • removedInput schema / properties / body / properties / previewType / $ref
      Removed value: -"#/$defs/def2"
    • addedInput schema / properties / body / properties / previewType / enum
      Added value: +[
+  "automatic",
+  "noPreview",
+  "checklist",
+  "description",
+  "reference"
+]
    • addedInput schema / properties / body / properties / previewType / type
      Added value: +"string"
  2. Changed11 schema fields changedv0.134.4
    • addedInput schema / $defs
      Added value: +{
+  "def0": {
+    "additionalProperties": true,
+    "properties": {
+      "application": {
+        "$ref": "#/$defs/def1"
+      },
+      "device": {
+        "$ref": "#/$defs/def1"
+      },
+      "user": {
+        "$ref": "#/$defs/def1"
+      }
+    },
+    "type": "object"
+  },
+  "def1": {
+    "additionalProperties": true,
+    "properties": {
+      "displayName": {
+        "description": "The display name of the identity.For drive items, the display name might not always be available or up to date. For example, if a user changes their display name the API might show the new value in a future response, but the items associated with the user don't show up as changed when using delta.",
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "id": {
+        "description": "Unique identifier for the identity or actor. For example, in the access reviews decisions API, this property might record the id of the principal, that is, the group, user, or application that's subject to review.",
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  },
+  "def2": {
+    "enum": [
+      "automatic",
+      "noPreview",
+      "checklist",
+      "description",
+      "reference"
+    ],
+    "type": "string"
+  }
+}
    • addedInput schema / properties / body / properties / completedBy / $ref
      Added value: +"#/$defs/def0"
    • removedInput schema / properties / body / properties / completedBy / additionalProperties
      Removed value: -true
    • removedInput schema / properties / body / properties / completedBy / properties
      Removed value: -{
-  "application": {
-    "additionalProperties": true,
-    "properties": {
-      "displayName": {
-        "description": "The display name of the identity.For drive items, the display name might not always be available or up to date. For example, if a user changes their display name the API might show the new value in a future response, but the items associated with the user don't show up as changed when using delta.",
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "id": {
-        "description": "Unique identifier for the identity or actor. For example, in the access reviews decisions API, this property might record the id of the principal, that is, the group, user, or application that's subject to review.",
-        "type": [
-          "string",
-          "null"
-        ]
-      }
-    },
-    "type": "object"
-  },
-  "device": {
-    "$ref": "#/properties/body/properties/completedBy/properties/application"
-  },
-  "user": {
-    "$ref": "#/properties/body/properties/completedBy/properties/application"
-  }
-}
    • removedInput schema / properties / body / properties / completedBy / type
      Removed value: -"object"
    • changedInput schema / properties / body / properties / createdBy / $ref
      Previous value: -"#/properties/body/properties/completedBy"New value: +"#/$defs/def0"
    • addedInput schema / properties / body / properties / details / properties / previewType / $ref
      Added value: +"#/$defs/def2"
    • removedInput schema / properties / body / properties / details / properties / previewType / enum
      Removed value: -[
-  "automatic",
-  "noPreview",
-  "checklist",
-  "description",
-  "reference"
-]
    • removedInput schema / properties / body / properties / details / properties / previewType / type
      Removed value: -"string"
    • changedInput schema / properties / body / properties / previewType / $ref
      Previous value: -"#/properties/body/properties/details/properties/previewType"New value: +"#/$defs/def2"
    • changedInput schema / properties / plannerTaskId / description
      Previous value: -"Path parameter: plannerTaskId"New value: +"Value for the 'plannerTaskId' path segment. Pass it under the name 'plannerTaskId', not as 'id'. Use the 'id' field of the planner task object as returned by Microsoft Graph."
  3. Changed1 schema field changedv0.131.2
    • changedInput schema / additionalProperties
      Previous value: -falseNew value: +true
  4. Changed1 schema field changedv0.131.1
    • addedInput schema / properties / confirm
      Added value: +{
+  "description": "For destructive operations when the confirm gate is enabled (MS365_MCP_REQUIRE_CONFIRM=true; off by default). Set to true only after the user has explicitly approved this action. When the gate is on, calls without confirm: true return { error: \"confirmation_required\" } without touching user data.",
+  "type": "boolean"
+}
  5. Addedv0.114.0
  6. Removedv0.112.2
  7. Addedv0.110.0
  8. Removedv0.108.0
  9. Changed10 schema fields changedv0.96.0
    • changedInput schema / properties / body / properties / appliedCategories / additionalProperties
      Previous value: -falseNew value: +true
    • changedInput schema / properties / body / properties / assignedToTaskBoardFormat / additionalProperties
      Previous value: -falseNew value: +true
    • changedInput schema / properties / body / properties / assignedToTaskBoardFormat / properties / orderHintsByAssignee / additionalProperties
      Previous value: -falseNew value: +true
    • changedInput schema / properties / body / properties / assignments / additionalProperties
      Previous value: -falseNew value: +true
    • changedInput schema / properties / body / properties / bucketTaskBoardFormat / additionalProperties
      Previous value: -falseNew value: +true
    • changedInput schema / properties / body / properties / completedBy / additionalProperties
      Previous value: -falseNew value: +true
    • changedInput schema / properties / body / properties / completedBy / properties / application / additionalProperties
      Previous value: -falseNew value: +true
    • changedInput schema / properties / body / properties / details / additionalProperties
      Previous value: -falseNew value: +true
    • changedInput schema / properties / body / properties / details / properties / checklist / additionalProperties
      Previous value: -falseNew value: +true
    • changedInput schema / properties / body / properties / details / properties / references / additionalProperties
      Previous value: -falseNew value: +true
  10. First observedv0.31.0

TDQS

A4/5.0
Behavior4/5

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

Annotations already flag destructiveHint=true and openWorldHint=true, so the safety profile is covered. The description adds real behavioral context beyond that: the exact failure mode (412 Precondition Failed) when the ETag is missing, and where to obtain the ETag. It does not describe reversibility or what happens to unspecified properties.

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

Conciseness4/5

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

Front-loaded with the core purpose, followed by the critical constraint and priority semantics. Both sentences are useful, though the priority mapping duplicates schema text rather than adding new value.

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

Completeness4/5

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

For a mutation tool with no output schema, the description covers the single biggest failure mode (ETag/If-Match) and the priority domain. The confirm-gate parameter and other body fields are documented in the schema, so coverage is adequate, though it could note the destructive nature more explicitly.

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?

Schema coverage is high (83%), which sets a baseline of 3, but the description adds genuine workflow meaning for the If-Match parameter by naming its source (get-planner-task + includeHeaders=true). The priority 0-10 mapping largely restates the schema's own priority description, so it earns only partial credit.

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?

The description states a specific verb+resource ('Update the properties of plannerTask object'), which is clearly distinguishable from read-oriented siblings like get-planner-task. However, it does not distinguish itself from the closely named update-planner-task-details, which an agent could easily confuse it with.

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?

It gives a concrete prerequisite and workflow: the If-Match header is required, and the ETag must be fetched via get-planner-task with includeHeaders=true. It stops short of stating when to use this tool versus the sibling update-planner-task-details, which handles the details object.

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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