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Polarion MCP Server

Polarion MCP Server

by phillipboesger
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Hybrid

getTestStepResultAttachmentContent

Read-only

Downloads the raw file content of a Test Step Result attachment, returning images as image content, UTF-8 text as text, and other files as base64; refuses files over 20 MB.

Instructions

Downloads the raw file content of one Test Step Result attachment. Images (PNG, JPEG, GIF, WebP) come back as image content, UTF-8 text files as text, and any other file (PDF, Office, ZIP) as an embedded base64 resource; files over 20 MB are refused. Use this only when you need the file's bytes; for its metadata (fileName, contentType, size, author) call getTestStepResultAttachment, and to discover attachment IDs call getTestStepResultAttachments.

Input Schema

NameRequiredDescriptionDefault
revisionNoA specific repository revision (e.g. `1234`) to read the resource as it existed at that revision instead of the current HEAD. Omit to use the latest revision.
iterationYesThe iteration number identifying which repeated occurrence of this item is being addressed (e.g. which run of a test parameter).
projectIdYesThe 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.
testRunIdYesThe Test Run's ID within its project.
testCaseIdYesThe Test Case's ID being referenced.
attachmentIdYesThe attachment's ID, as returned by the corresponding list- or get-attachments call for this resource.
testStepIndexYesThe Test Step index.
response_formatNoResponse 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
testCaseProjectIdYesThe project ID that owns the referenced Test Case — may differ from the project in the request path when the test case is shared from another project.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changedv1.4.4
    • 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."
  2. Changed1 schema field changedv1.4.0
    • 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"
+}
  3. Changed7 schema fields changedv1.2.0
    • changedInput schema / properties / attachmentId / description
      Previous value: -"The Attachment ID."New value: +"The attachment's ID, as returned by the corresponding list- or get-attachments call for this resource."
    • changedInput schema / properties / iteration / description
      Previous value: -"The Iteration Number."New value: +"The iteration number identifying which repeated occurrence of this item is being addressed (e.g. which run of a test parameter)."
    • 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 / revision / description
      Previous value: -"The revision ID."New value: +"A specific repository revision (e.g. `1234`) to read the resource as it existed at that revision instead of the current HEAD. Omit to use the latest revision."
    • changedInput schema / properties / testCaseId / description
      Previous value: -"The Testcase ID."New value: +"The Test Case's ID being referenced."
    • changedInput schema / properties / testCaseProjectId / description
      Previous value: -"The Testcase Project ID."New value: +"The project ID that owns the referenced Test Case — may differ from the project in the request path when the test case is shared from another project."
    • changedInput schema / properties / testRunId / description
      Previous value: -"The Test Run ID."New value: +"The Test Run's ID within its project."
  4. First observedv1.0.0

TDQS

A4.7/5.0
Behavior5/5

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

Annotations only declare readOnlyHint and openWorldHint, but the description discloses the actual return-shape behavior: images come back as image content, UTF-8 text as text, other files as base64 resources, plus a hard 20 MB refusal limit. These are non-obvious operational facts an agent cannot get from annotations or schema.

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 action, then return-format mapping and the size cap, then sibling routing. Every sentence carries distinct information with no repetition of schema or annotations.

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?

No output schema exists, so the description must explain return values, and it does so thoroughly (format varies by MIME type, size limit). Combined with the 7 required path parameters fully documented in schema, an agent has everything needed to call it correctly.

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% across all 9 parameters, so the schema already documents projectId, revision, iteration, attachmentId, response_format, etc. The description adds nothing about parameter usage or the revision/response_format knobs beyond what is structured. Baseline 3 applies.

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: 'Downloads the raw file content of one Test Step Result attachment.' It explicitly contrasts with the metadata sibling getTestStepResultAttachment and the discovery sibling getTestStepResultAttachments, so an agent can distinguish it from relatives without opening schemas.

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 explicit when-to-use ('only when you need the file's bytes') and names both alternatives with the condition that selects each: getTestStepResultAttachment for metadata, getTestStepResultAttachments for IDs. No inference required.

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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