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Redmine MCP Server

Redmine MCP Server

by compasify
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Remote

uploadAttachmentFromBase64Content

Upload a Base64-encoded file as an attachment to Redmine and retrieve an upload token for later use.

Instructions

Upload attachment file from Base64 encoded content to Redmine and get upload token

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "pathParams": "<pathParams>"
    },
    "name": "uploadAttachmentFromBase64Content"
  }
}

Input Schema

NameRequiredDescriptionDefault
pathParamsYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.1.4

TDQS

B3.3/5.0
Behavior2/5

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

No annotations are provided, so the description must carry the full burden. It mentions the return value (upload token) but does not disclose potential side effects, authentication requirements, token expiry, or the fact that the upload is likely temporary until attached to a resource. This is a significant gap for a mutation-like operation.

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?

The description is a single, concise sentence that is front-loaded with the main action. Every word adds value, with no redundancy or filler.

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

Completeness2/5

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

There is no output schema, so the description should explain the return value, which it does ('get upload token'). However, it lacks context about the purpose of the token (e.g., for use in creating issues), the nested parameter structure, or any prerequisites. The tool has moderate complexity with a nested object and no annotations, so the description is insufficient for a complete understanding.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0% at the top level, so the description must compensate. It indirectly references the 'content' parameter via 'Base64 encoded content' but does not mention the 'filename' parameter or explain the nested 'pathParams' structure. The schema provides some descriptions for nested properties, but the description adds little beyond that.

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 a specific action ('Upload attachment file'), the source format ('Base64 encoded content'), destination ('Redmine'), and the output ('get upload token'). This distinguishes it from sibling tools like uploadAttachmentFromLocalFile and downloadAttachmentAsBase64Content.

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

Usage Guidelines3/5

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

Usage is implied by the phrase 'from Base64 encoded content', suggesting this is for when the user has base64-encoded data, but no explicit alternatives or when-not-to-use conditions are mentioned. It does not reference sibling tools or exclusion scenarios.

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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