Polarion MCP Server

getAvailableEnumOptionsForWorkItemType

Read-only

Retrieves valid enumeration options for a field on a Work Item type before any item exists, so you can choose accepted values when creating Work Items.

Instructions

Returns the enumeration options that may be set on one field for a Work Item type (e.g. type=requirement), before any concrete item exists. fieldId must be an enumeration-typed field (e.g. status, severity, or a custom enum field). Pass type=~ for options that apply regardless of type. Call it before postWorkItems to choose valid values; for an existing item use getAvailableEnumOptionsForWorkItem, which also applies that item's dependent enumerations.

Input Schema

Name	Required	Description	Default
`type`	No	The Type of the object. Use '~' without quotes to represent no target Type.
`fieldId`	Yes	The ID of an enumeration-typed field (e.g. `status`, `severity`, `priority`, or a custom enum field ID), not its display label. Use the matching getFieldsMetadataFor* tool to discover field IDs.
`max_items`	No	Collect up to this many results across pages (maximum 1000). Omit to fetch only the requested page, as before.
`projectId`	Yes	The Polarion project ID (its URL segment, e.g. `myproject`), case-sensitive. Required to scope the request to one project. If the ID is unknown, ask the user; getProjects lists IDs only with global read access.
`page_size_`	No	Maximum number of items to return in this page (e.g. `100`). Use together with `page[number]` to paginate through a large result set.
`page_number_`	No	1-based page number to fetch when the result set is paginated (e.g. `2` for the second page). Combine with `page[size]`; omit to fetch the first page.
`response_format`	No	Response detail level. concise removes redundant HTML and JSON:API metadata and may use a small default fieldset on large lists; detailed preserves the complete response. Defaults to detailed.	detailed

Output Schema

Name	Required	Description	Default
`data`	No
`meta`	No
`links`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedv1.4.4Oct 29, 2026

changedInput schema / properties / projectId / description

Previous 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."New value: +"The Polarion project ID (its URL segment, e.g. `myproject`), case-sensitive. Required to scope the request to one project. If the ID is unknown, ask the user; getProjects lists IDs only with global read access."

Changed2 schema fields changedv1.4.0Oct 24, 2026

addedInput schema / properties / max_items

Added value: +{
+  "description": "Collect up to this many results across pages (maximum 1000). Omit to fetch only the requested page, as before.",
+  "maximum": 1000,
+  "minimum": 1,
+  "type": "integer"
+}

addedInput schema / properties / response_format

Added value: +{
+  "default": "detailed",
+  "description": "Response detail level. concise removes redundant HTML and JSON:API metadata and may use a small default fieldset on large lists; detailed preserves the complete response. Defaults to detailed.",
+  "enum": [
+    "concise",
+    "detailed"
+  ],
+  "type": "string"
+}

Changed58 schema fields changedv1.3.1Oct 22, 2026
- removedOutput schema / properties / data / items / properties / color / example
```
Removed value: -"#F9FF4D"
```
- changedOutput schema / properties / data / items / properties / color / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / columnWidth / example
```
Removed value: -"90%"
```
- changedOutput schema / properties / data / items / properties / columnWidth / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / createDefect / example
```
Removed value: -true
```
- changedOutput schema / properties / data / items / properties / createDefect / type
```
Previous value: -"boolean"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / default / example
```
Removed value: -true
```
- changedOutput schema / properties / data / items / properties / default / type
```
Previous value: -"boolean"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / description / example
```
Removed value: -"Description"
```
- changedOutput schema / properties / data / items / properties / description / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / hidden / example
```
Removed value: -false
```
- changedOutput schema / properties / data / items / properties / hidden / type
```
Previous value: -"boolean"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / iconURL / example
```
Removed value: -"/polarion/icons/default/enums/status_open.gif"
```
- changedOutput schema / properties / data / items / properties / iconURL / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / id / example
```
Removed value: -"open"
```
- changedOutput schema / properties / data / items / properties / id / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / limited / example
```
Removed value: -true
```
- changedOutput schema / properties / data / items / properties / limited / type
```
Previous value: -"boolean"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / linkRules / items / properties / fromTypes / example
```
Removed value: -[
-  "requirement"
-]
```
- changedOutput schema / properties / data / items / properties / linkRules / items / properties / fromTypes / items / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- changedOutput schema / properties / data / items / properties / linkRules / items / properties / fromTypes / type
```
Previous value: -"array"New value: +[
+  "array",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / linkRules / items / properties / sameType / example
```
Removed value: -false
```
- changedOutput schema / properties / data / items / properties / linkRules / items / properties / sameType / type
```
Previous value: -"boolean"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / linkRules / items / properties / toTypes / example
```
Removed value: -[
-  "requirement"
-]
```
- changedOutput schema / properties / data / items / properties / linkRules / items / properties / toTypes / items / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- changedOutput schema / properties / data / items / properties / linkRules / items / properties / toTypes / type
```
Previous value: -"array"New value: +[
+  "array",
+  "null"
+]
```
- changedOutput schema / properties / data / items / properties / linkRules / items / type
```
Previous value: -"object"New value: +[
+  "object",
+  "null"
+]
```
- changedOutput schema / properties / data / items / properties / linkRules / type
```
Previous value: -"array"New value: +[
+  "array",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / minValue / example
```
Removed value: -30
```
- changedOutput schema / properties / data / items / properties / minValue / type
```
Previous value: -"number"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / name / example
```
Removed value: -"Open"
```
- changedOutput schema / properties / data / items / properties / name / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / oppositeName / example
```
Removed value: -"Opposite Name"
```
- changedOutput schema / properties / data / items / properties / oppositeName / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / parent / example
```
Removed value: -true
```
- changedOutput schema / properties / data / items / properties / parent / type
```
Previous value: -"boolean"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / requiresSignatureForTestCaseExecution / example
```
Removed value: -true
```
- changedOutput schema / properties / data / items / properties / requiresSignatureForTestCaseExecution / type
```
Previous value: -"boolean"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / templateWorkItem / example
```
Removed value: -"exampleTemplate"
```
- changedOutput schema / properties / data / items / properties / templateWorkItem / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / data / items / properties / terminal / example
```
Removed value: -true
```
- changedOutput schema / properties / data / items / properties / terminal / type
```
Previous value: -"boolean"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- changedOutput schema / properties / data / items / type
```
Previous value: -"object"New value: +[
+  "object",
+  "null"
+]
```
- changedOutput schema / properties / data / type
```
Previous value: -"array"New value: +[
+  "array",
+  "null"
+]
```
- removedOutput schema / properties / links / properties / first / example
```
Removed value: -"server-host-name/application-path/projects/MyProjectId/.../fields/MyField/actions/actionName?page%5Bnumber%5D=1"
```
- changedOutput schema / properties / links / properties / first / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / links / properties / last / example
```
Removed value: -"server-host-name/application-path/projects/MyProjectId/.../fields/MyField/actions/actionName?page%5Bnumber%5D=9"
```
- changedOutput schema / properties / links / properties / last / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / links / properties / next / example
```
Removed value: -"server-host-name/application-path/projects/MyProjectId/.../fields/MyField/actions/actionName?page%5Bnumber%5D=6"
```
- changedOutput schema / properties / links / properties / next / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / links / properties / prev / example
```
Removed value: -"server-host-name/application-path/projects/MyProjectId/.../fields/MyField/actions/actionName?page%5Bnumber%5D=4"
```
- changedOutput schema / properties / links / properties / prev / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / links / properties / self / example
```
Removed value: -"server-host-name/application-path/projects/MyProjectId/.../fields/MyField/actions/actionName?page%5Bsize%5D=10&page%5Bnumber%5D=5"
```
- changedOutput schema / properties / links / properties / self / type
```
Previous value: -"string"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- changedOutput schema / properties / links / type
```
Previous value: -"object"New value: +[
+  "object",
+  "null"
+]
```
- removedOutput schema / properties / meta / properties / totalCount / format
```
Removed value: -"int32"
```
- changedOutput schema / properties / meta / properties / totalCount / type
```
Previous value: -"integer"New value: +[
+  "string",
+  "number",
+  "integer",
+  "boolean",
+  "null"
+]
```
- changedOutput schema / properties / meta / type
```
Previous value: -"object"New value: +[
+  "object",
+  "null"
+]
```

Changed1 schema field changedv1.2.2Sep 25, 2026

changedInput schema / properties / fieldId / description

Previous value: -"The Field ID."New value: +"The ID of an enumeration-typed field (e.g. `status`, `severity`, `priority`, or a custom enum field ID), not its display label. Use the matching getFieldsMetadataFor* tool to discover field IDs."

Changed3 schema fields changedv1.2.0Sep 17, 2026

changedInput schema / properties / page_number_ / description

Previous value: -"Specify the page number to be returned. Counting starts from 1. 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: +"1-based page number to fetch when the result set is paginated (e.g. `2` for the second page). Combine with `page[size]`; omit to fetch the first page."

changedInput schema / properties / page_size_ / description

Previous value: -"Limit the number of entities returned in a single response. 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: +"Maximum number of items to return in this page (e.g. `100`). Use together with `page[number]` to paginate through a large result set."

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."

Changed1 schema field changedv1.1.0Sep 11, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "data": {
+      "items": {
+        "properties": {
+          "color": {
+            "example": "#F9FF4D",
+            "type": "string"
+          },
+          "columnWidth": {
+            "example": "90%",
+            "type": "string"
+          },
+          "createDefect": {
+            "example": true,
+            "type": "boolean"
+          },
+          "default": {
+            "example": true,
+            "type": "boolean"
+          },
+          "description": {
+            "example": "Description",
+            "type": "string"
+          },
+          "hidden": {
+            "example": false,
+            "type": "boolean"
+          },
+          "iconURL": {
+            "example": "/polarion/icons/default/enums/status_open.gif",
+            "type": "string"
+          },
+          "id": {
+            "example": "open",
+            "type": "string"
+          },
+          "limited": {
+            "example": true,
+            "type": "boolean"
+          },
+          "linkRules": {
+            "items": {
+              "properties": {
+                "fromTypes": {
+                  "example": [
+                    "requirement"
+                  ],
+                  "items": {
+                    "type": "string"
+                  },
+                  "type": "array"
+                },
+                "sameType": {
+                  "example": false,
+                  "type": "boolean"
+                },
+                "toTypes": {
+                  "example": [
+                    "requirement"
+                  ],
+                  "items": {
+                    "type": "string"
+                  },
+                  "type": "array"
+                }
+              },
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "minValue": {
+            "example": 30,
+            "type": "number"
+          },
+          "name": {
+            "example": "Open",
+            "type": "string"
+          },
+          "oppositeName": {
+            "example": "Opposite Name",
+            "type": "string"
+          },
+          "parent": {
+            "example": true,
+            "type": "boolean"
+          },
+          "requiresSignatureForTestCaseExecution": {
+            "example": true,
+            "type": "boolean"
+          },
+          "templateWorkItem": {
+            "example": "exampleTemplate",
+            "type": "string"
+          },
+          "terminal": {
+            "example": true,
+            "type": "boolean"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "links": {
+      "properties": {
+        "first": {
+          "example": "server-host-name/application-path/projects/MyProjectId/.../fields/MyField/actions/actionName?page%5Bnumber%5D=1",
+          "type": "string"
+        },
+        "last": {
+          "example": "server-host-name/application-path/projects/MyProjectId/.../fields/MyField/actions/actionName?page%5Bnumber%5D=9",
+          "type": "string"
+        },
+        "next": {
+          "example": "server-host-name/application-path/projects/MyProjectId/.../fields/MyField/actions/actionName?page%5Bnumber%5D=6",
+          "type": "string"
+        },
+        "prev": {
+          "example": "server-host-name/application-path/projects/MyProjectId/.../fields/MyField/actions/actionName?page%5Bnumber%5D=4",
+          "type": "string"
+        },
+        "self": {
+          "example": "server-host-name/application-path/projects/MyProjectId/.../fields/MyField/actions/actionName?page%5Bsize%5D=10&page%5Bnumber%5D=5",
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "meta": {
+      "properties": {
+        "totalCount": {
+          "format": "int32",
+          "type": "integer"
+        }
+      },
+      "type": "object"
+    }
+  },
+  "type": "object"
+}

Changed5 schema fields changedSep 7, 2026

removedInput schema / properties / page_number

Removed value: -{
-  "description": "Specify the page number to be returned. Counting starts from 1. See <a href=\"https://docs.sw.siemens.com/en-US/doc/230235217/PL20231017526942799.polarion_help_sc.xid2134849/xid2134871\" target=\"_blank\">REST API User Guide</a> for details.",
-  "format": "int32",
-  "type": "number"
-}

addedInput schema / properties / page_number_

Added value: +{
+  "description": "Specify the page number to be returned. Counting starts from 1. 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.",
+  "format": "int32",
+  "type": "number"
+}

removedInput schema / properties / page_size

Removed value: -{
-  "description": "Limit the number of entities returned in a single response. See <a href=\"https://docs.sw.siemens.com/en-US/doc/230235217/PL20231017526942799.polarion_help_sc.xid2134849/xid2134871\" target=\"_blank\">REST API User Guide</a> for details.",
-  "format": "int32",
-  "type": "number"
-}

addedInput schema / properties / page_size_

Added value: +{
+  "description": "Limit the number of entities returned in a single response. 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.",
+  "format": "int32",
+  "type": "number"
+}

changedInput schema / properties / type / description

Previous value: -"The Type of the object."New value: +"The Type of the object. Use '~' without quotes to represent no target Type."

First observedv1.0.0Jun 13, 2026

TDQS

A4.6/5.0

Behavior4/5

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

Annotations already declare readOnlyHint and openWorldHint, so safety is covered. The description adds real behavioral context beyond that: results are type-scoped and pre-item, and the alternative tool additionally applies dependent enumerations — a distinction an agent could not infer from annotations. It stops short of describing what an empty option set or an invalid fieldId yields.

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 what the tool returns, then the fieldId constraint, then the routing guidance. No restatement of the name or filler; every clause carries decision-relevant information.

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?

Given an output schema, rich parameter descriptions, and annotations, the description covers the decision-critical facts: scope, precondition, sibling routing, and field-type constraint. Only error/empty-result behavior is left implicit, which is minor for a read-only lookup.

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 100%, so the baseline is 3, but the description still adds meaning: fieldId must be an enumeration-typed field (with status/severity/custom-enum examples) and type=~ selects type-independent options, which explains the parameter's purpose rather than just its format. Example usage of type=requirement makes the semantics concrete.

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+resource (returns enumeration options for one field of a Work Item type) and pins the scope to the pre-creation case ('before any concrete item exists'). It explicitly distinguishes itself from the near-identical sibling getAvailableEnumOptionsForWorkItem by name.

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?

Gives an explicit when: 'Call it before postWorkItems to choose valid values', plus the exclusion rule: 'for an existing item use getAvailableEnumOptionsForWorkItem'. Also clarifies the type=~ fallback for options independent of type, so there is no ambiguity about which sibling to pick.

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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