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Polarion MCP Server

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TypeScript
Hybrid

getFieldsMetadataForDocument

Read-only

Retrieve field definitions for a specific document before writing, showing each field's label, type kind, and custom fields to validate keys and value types.

Instructions

Returns the field definitions that apply to one specific Document, keyed by field ID: each field's label and type kind (primitive such as string/date/text/html, list, structure, or enumeration with its enum name), including the custom fields configured for its type. Use it before writing to the Document to learn which field keys and value types are valid. For the allowed values of one enum field, follow up with getAvailableEnumOptionsForDocument. For the project-wide definitions of a resource type without a concrete instance, use getProjectFieldsMetadata; for global defaults, getGlobalFieldsMetadata.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
spaceIdYesThe Document Space ID (a folder-like grouping of documents/pages within a project). Use `_default` (no quotes) to address the project's default space.
projectIdYesThe Polarion project ID (its URL segment, e.g. `myproject`), case-sensitive. Required to scope the request to one project; call getProjects to list valid IDs.
documentNameYesThe Branch Document Name.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
dataNo
linksNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changedv1.2.0
    • changedInput schema / properties / projectId / description
      Previous value: -"The Project ID."New value: +"The Polarion project ID (its URL segment, e.g. `myproject`), case-sensitive. Required to scope the request to one project; call getProjects to list valid IDs."
    • changedInput schema / properties / spaceId / description
      Previous value: -"The Space ID. (Use '_default' without quotes to address the default Space.)"New value: +"The Document Space ID (a folder-like grouping of documents/pages within a project). Use `_default` (no quotes) to address the project's default space."
  2. Changed1 schema field changedv1.1.0
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "properties": {
+    "data": {
+      "properties": {
+        "attributes": {
+          "properties": {
+            "enumField": {
+              "properties": {
+                "label": {
+                  "example": "field-label",
+                  "type": "string"
+                },
+                "type": {
+                  "properties": {
+                    "enumContext": {
+                      "example": "enum-context",
+                      "type": "string"
+                    },
+                    "enumName": {
+                      "example": "enum-name",
+                      "type": "string"
+                    },
+                    "kind": {
+                      "example": "enumeration",
+                      "type": "string"
+                    }
+                  },
+                  "type": "object"
+                }
+              },
+              "type": "object"
+            },
+            "listField": {
+              "properties": {
+                "label": {
+                  "example": "field-label",
+                  "type": "string"
+                },
+                "type": {
+                  "properties": {
+                    "itemType": {
+                      "properties": {
+                        "kind": {
+                          "properties": {
+                            "enum": {
+                              "items": {
+                                "enum": [
+                                  "string",
+                                  "text",
+                                  "text/html",
+                                  "integer",
+                                  "float",
+                                  "currency",
+                                  "time",
+                                  "date",
+                                  "date-time",
+                                  "boolean",
+                                  "structure",
+                                  "relationship"
+                                ],
+                                "type": "string"
+                              },
+                              "type": "array"
+                            }
+                          },
+                          "type": "object"
+                        }
+                      },
+                      "type": "object"
+                    },
+                    "kind": {
+                      "example": "list",
+                      "type": "string"
+                    }
+                  },
+                  "type": "object"
+                }
+              },
+              "type": "object"
+            },
+            "primitiveField": {
+              "properties": {
+                "label": {
+                  "example": "field-label",
+                  "type": "string"
+                },
+                "type": {
+                  "properties": {
+                    "kind": {
+                      "properties": {
+                        "enum": {
+                          "items": {
+                            "enum": [
+                              "string",
+                              "text",
+                              "text/html",
+                              "integer",
+                              "float",
+                              "currency",
+                              "time",
+                              "date",
+                              "date-time",
+                              "boolean"
+                            ],
+                            "type": "string"
+                          },
+                          "type": "array"
+                        }
+                      },
+                      "type": "object"
+                    }
+                  },
+                  "type": "object"
+                }
+              },
+              "type": "object"
+            },
+            "structField": {
+              "properties": {
+                "label": {
+                  "example": "field-label",
+                  "type": "string"
+                },
+                "type": {
+                  "properties": {
+                    "kind": {
+                      "example": "structure",
+                      "type": "string"
+                    },
+                    "structureName": {
+                      "example": "structureId",
+                      "type": "string"
+                    }
+                  },
+                  "type": "object"
+                }
+              },
+              "type": "object"
+            }
+          },
+          "type": "object"
+        },
+        "relationships": {
+          "properties": {
+            "relationshipField": {
+              "properties": {
+                "label": {
+                  "example": "field-label",
+                  "type": "string"
+                },
+                "type": {
+                  "properties": {
+                    "kind": {
+                      "example": "relationship",
+                      "type": "string"
+                    },
+                    "multi": {
+                      "example": true,
+                      "type": "boolean"
+                    },
+                    "targetResourceTypes": {
+                      "items": {
+                        "example": "resource-type",
+                        "type": "string"
+                      },
+                      "type": "array"
+                    }
+                  },
+                  "type": "object"
+                }
+              },
+              "type": "object"
+            }
+          },
+          "type": "object"
+        }
+      },
+      "type": "object"
+    },
+    "links": {
+      "properties": {
+        "self": {
+          "example": "https://example.com/polarion/rest/v1/projects/MyProjectId/actions/getFieldsMetadata?resourceType=MyResourceType&targetType=MyTargetType",
+          "type": "string"
+        }
+      },
+      "type": "object"
+    }
+  },
+  "type": "object"
+}
  3. Added

TDQS

A4.5/5.0
Behavior4/5

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

Annotations already indicate readOnlyHint=true and openWorldHint=true, covering the safety profile. The description adds useful behavioral context beyond that: it returns definitions keyed by field ID, includes custom fields, describes the kinds of types returned, and frames the operation as a prerequisite for writing to a document. This is richer than merely restating the safe read behavior.

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, front-loaded with the core return value, followed by usage context and sibling routing. Every sentence adds distinct information: what is returned, when to use it, and which tools to use instead or next. There is no filler or redundancy.

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

Completeness5/5

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

Given the detailed input schema, available output schema, and annotations covering read-only safety, the description covers what the tool returns, why it should be called, and how it relates to nearby metadata and enum tools. No critical information needed for correct invocation or selection is missing.

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%, with detailed parameter descriptions for projectId, spaceId, and documentName, including case-sensitivity and the `_default` space convention. The description reinforces that this is about 'one specific Document,' but it does not add parameter-level syntax beyond what the schema already documents, 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?

The description states a specific verb and resource ('Returns the field definitions that apply to one specific Document'), explains what is included (label, type kind, custom fields), and differentiates itself from sibling tools like getProjectFieldsMetadata and getGlobalFieldsMetadata by emphasizing 'one specific Document' and 'custom fields configured for its type.' This is precise and not a tautology.

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?

The description explicitly says when to use it ('Use it before writing to the Document') and names the appropriate follow-up tool for enum values (getAvailableEnumOptionsForDocument) as well as alternatives for project-wide and global metadata (getProjectFieldsMetadata, getGlobalFieldsMetadata). It provides clear when/alternative guidance with no ambiguity.

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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