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Polarion MCP Server

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TypeScript
Hybrid

getLicenseAssignmentsForUser

Read-only

Retrieve a specific license assignment for a user by ID, reducing payload with optional field selection and embedded related resources.

Instructions

Returns the specified License Assignment. (Not supported by cloud-based Polarion X.). Cardinality: targets a single item by ID. For the full collection or a batch, use getLicenseAssignments instead.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
fieldsNoSparse fieldset selector: an object keyed by resource type (e.g. `workitems`) whose value is a comma-separated list of attribute names to return (e.g. `id,title,status`), reducing payload size. Omit to return the default field set.
userIdYes
includeNoComma-separated list of related resource types to embed in the response (e.g. `author,attachments`) so they don't require a separate follow-up call. Omit to return only the primary resource.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
dataNo
linksNo
includedNoRelated entities might be returned, see <a href="https://docs.sw.siemens.com/en-US/doc/230235217/PL20250606201928474.polarion_help_sc.xid2134849/xid2134871" target="_blank">REST API User Guide</a>.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changedv1.2.0
    • changedInput schema / properties / fields / description
      Previous value: -"Filter returned resource fields. See <a href=\"https://docs.sw.siemens.com/en-US/doc/230235217/PL20250606201928474.polarion_help_sc.xid2134849/xid2134871\" target=\"_blank\">REST API User Guide</a> for details."New value: +"Sparse fieldset selector: an object keyed by resource type (e.g. `workitems`) whose value is a comma-separated list of attribute names to return (e.g. `id,title,status`), reducing payload size. Omit to return the default field set."
    • changedInput schema / properties / include / description
      Previous value: -"Include related entities. See <a href=\"https://docs.sw.siemens.com/en-US/doc/230235217/PL20250606201928474.polarion_help_sc.xid2134849/xid2134871\" target=\"_blank\">REST API User Guide</a> for details."New value: +"Comma-separated list of related resource types to embed in the response (e.g. `author,attachments`) so they don't require a separate follow-up call. Omit to return only the primary resource."
  2. Changed1 schema field changedv1.1.0
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "properties": {
+    "data": {
+      "properties": {
+        "attributes": {
+          "properties": {
+            "status": {
+              "enum": [
+                "LOGGED_IN",
+                "EXPIRING",
+                "INACTIVE"
+              ],
+              "type": "string"
+            }
+          },
+          "type": "object"
+        },
+        "id": {
+          "example": "MyUserId",
+          "type": "string"
+        },
+        "links": {
+          "properties": {
+            "self": {
+              "example": "server-host-name/application-path/license/assignments/MyUserId",
+              "type": "string"
+            }
+          },
+          "type": "object"
+        },
+        "meta": {
+          "properties": {
+            "errors": {
+              "items": {
+                "properties": {
+                  "detail": {
+                    "description": "Human-readable explanation specific to this occurrence of the problem.",
+                    "example": "Unexpected token, BEGIN_ARRAY expected, but was : BEGIN_OBJECT (at $.data)",
+                    "type": "string"
+                  },
+                  "source": {
+                    "properties": {
+                      "parameter": {
+                        "description": "String indicating which URI query parameter caused the error.",
+                        "example": "revision",
+                        "type": "string"
+                      },
+                      "pointer": {
+                        "description": "JSON Pointer to the associated entity in the request document.",
+                        "example": "$.data",
+                        "type": "string"
+                      },
+                      "resource": {
+                        "description": "Resource causing the error.",
+                        "properties": {
+                          "id": {
+                            "example": "MyProjectId/id",
+                            "type": "string"
+                          },
+                          "type": {
+                            "example": "type",
+                            "type": "string"
+                          }
+                        },
+                        "type": "object"
+                      }
+                    },
+                    "type": "object"
+                  },
+                  "status": {
+                    "description": "HTTP status code applicable to this problem.",
+                    "example": "400",
+                    "type": "string"
+                  },
+                  "title": {
+                    "description": "Short, human-readable summary of the problem.",
+                    "example": "Bad Request",
+                    "type": "string"
+                  }
+                },
+                "type": "object"
+              },
+              "type": "array"
+            }
+          },
+          "type": "object"
+        },
+        "relationships": {
+          "properties": {
+            "addOnSlots": {
+              "properties": {
+                "data": {
+                  "items": {
+                    "properties": {
+                      "id": {
+                        "example": "LicenseType/ModelType/GroupId",
+                        "type": "string"
+                      },
+                      "type": {
+                        "enum": [
+                          "license_slots"
+                        ],
+                        "type": "string"
+                      }
+                    },
+                    "type": "object"
+                  },
+                  "type": "array"
+                },
+                "meta": {
+                  "properties": {
+                    "totalCount": {
+                      "format": "int32",
+                      "type": "integer"
+                    }
+                  },
+                  "type": "object"
+                }
+              },
+              "type": "object"
+            },
+            "baseSlot": {
+              "properties": {
+                "data": {
+                  "properties": {
+                    "id": {
+                      "example": "LicenseType/ModelType/GroupId",
+                      "type": "string"
+                    },
+                    "type": {
+                      "enum": [
+                        "license_slots"
+                      ],
+                      "type": "string"
+                    }
+                  },
+                  "type": "object"
+                }
+              },
+              "type": "object"
+            },
+            "user": {
+              "properties": {
+                "data": {
+                  "properties": {
+                    "id": {
+                      "example": "MyUserId",
+                      "type": "string"
+                    },
+                    "type": {
+                      "enum": [
+                        "users"
+                      ],
+                      "type": "string"
+                    }
+                  },
+                  "type": "object"
+                }
+              },
+              "type": "object"
+            }
+          },
+          "type": "object"
+        },
+        "type": {
+          "enum": [
+            "license_assignments"
+          ],
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "included": {
+      "description": "Related entities might be returned, see <a href=\"https://docs.sw.siemens.com/en-US/doc/230235217/PL20250606201928474.polarion_help_sc.xid2134849/xid2134871\" target=\"_blank\">REST API User Guide</a>.",
+      "items": {
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "links": {
+      "properties": {
+        "self": {
+          "example": "server-host-name/application-path/license/assignments/MyUserId",
+          "type": "string"
+        }
+      },
+      "type": "object"
+    }
+  },
+  "type": "object"
+}
  3. Added

TDQS

A4.6/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true and openWorldHint=true, covering safety and world assumptions. The description adds valuable behavior beyond annotations: the cloud incompatibility and the cardinality (single item by ID). These are not captured in the annotations or schema, so the description enriches the agent's understanding.

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?

Three sentences, each carrying essential information: purpose, limitation, and alternative. No filler or redundancy. The most critical scoping (single item) is front-loaded, and the alternative is given explicitly. Perfectly sized for a quick agent read.

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?

With an output schema present, return structure is covered. The description handles purpose, cardinality, platform restriction, and routing to the sibling tool. It doesn't mention error handling, but that is not expected for a read-only get. Overall, nothing critical is missing for correct invocation.

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 description coverage is 67% (fields and include are documented). The description compensates for the undocumented 'userId' by stating 'targets a single item by ID', clarifying that userId is the identifier. This adds meaning beyond the raw schema, and the other two parameters are already well described.

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?

The description clearly states the verb 'Returns' and the resource 'specified License Assignment', and further clarifies cardinality as a single item by ID. It explicitly distinguishes itself from the sibling tool getLicenseAssignments, which handles collections/batches, so an agent can immediately tell which tool fits the need.

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

Usage Guidelines5/5

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

It provides explicit guidance on when not to use this tool: for the full collection or a batch, use getLicenseAssignments instead. It also discloses a critical platform limitation (not supported by cloud-based Polarion X), which is essential for selecting the correct tool in cloud environments.

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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