DSpace MCP Server

dspace_update_item_metadata

Update existing DSpace item metadata with JSON Patch (RFC 6902) operations—add, remove, replace, or move fields via REST API.

Instructions

Update metadata on an existing DSpace item using JSON Patch (RFC 6902). Supports add, remove, replace, and move operations on metadata fields.

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": {
      "uuid": "<uuid>",
      "operations": "<operations>"
    },
    "name": "dspace_update_item_metadata"
  }
}

Input Schema

Name	Required	Description	Default
`uuid`	Yes	UUID of the item to update
`operations`	Yes	Array of JSON Patch operations

Schema Changelog

Changes observed during successful MCP inspections.

First observedv1.0.0Sep 29, 2026

TDQS

B3.1/5.0

Behavior2/5

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

With no annotations provided, the description carries the full behavioral burden. It discloses the mutation mechanism and the supported ops, which is useful, but says nothing about permission/auth requirements, whether 'remove' is irreversible, whether operations are atomic or can partially fail, or what the response looks like — all critical for a mutation tool with zero annotation coverage.

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?

Two tight sentences with no filler, front-loading the core action and then the supported operation set. Every clause earns its place.

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

Completeness3/5

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 need not explain return values, and the schema is rich enough to cover parameters. However, for a mutation tool with no annotations, the description omits auth/permission expectations and the consequences or reversibility of operations — a meaningful gap for an agent about to modify live metadata.

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% and the nested operations schema already documents op, path, from, and value with examples, so the schema does the heavy lifting. The description adds only the RFC 6902 reference and the op enumeration, which are marginal gains beyond the schema. Baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb and resource ('Update metadata on an existing DSpace item') and names the mechanism (JSON Patch / RFC 6902) plus the supported operations, so the agent knows exactly what the tool does. It does not, however, explicitly differentiate itself from the sibling dspace_update_workspace_item, leaving that distinction to the agent.

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

Usage Guidelines2/5

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

There is no when-to-use guidance, no prerequisites (e.g. authentication or required permissions), and no mention of when to prefer this over dspace_update_workspace_item or dspace_create_item. The agent must infer all routing decisions from the tool name alone.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Deploy Server