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NomaCMS MCP Server

NomaCMS MCP Server

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by NomaCMS
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TypeScript
Remote

Update Field

update_field

Update an existing field in a NomaCMS collection. Provide the collection slug, field UUID, type, label, and name to modify field properties and configurations.

Instructions

Update an existing field on a collection

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": {
      "collection_slug": "<collection_slug>",
      "field_uuid": "<field_uuid>",
      "type": "<type>",
      "label": "<label>",
      "name": "<name>"
    },
    "name": "update_field"
  }
}

Input Schema

NameRequiredDescriptionDefault
nameYesField identifier in kebab-case
typeYesField type
labelYesDisplay label
optionsNoField-specific options. For richtext: { editor: { type: 1, outputFormat: 'html' | 'markdown' } }. For relation: { relation: { collection, type: 1 | 2 }, includeDraft?: boolean }.
field_uuidYesThe UUID of the field to update
descriptionNoField description
placeholderNoPlaceholder text
validationsNoValidation rules
collection_slugYesThe collection slug

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.2.1

TDQS

B3/5.0
Behavior2/5

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

With no annotations provided, the description carries full burden but only says 'Update an existing field'. It fails to disclose side effects, permissions, reversibility, or error behavior. Insufficient for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness3/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single concise sentence, but it does not earn its place by adding value beyond the tool name. It is not verbose but could include more useful information without bloat.

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?

Given the complexity of 9 parameters including nested objects, the description is far too minimal. It lacks behavioral context, return value information, and usage examples, making it incomplete for effective tool selection and invocation.

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 coverage is 100% and all parameters have descriptions, so baseline is 3. The description adds no additional meaning beyond the schema, which is acceptable but not enhanced.

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 the specific verb 'update' and the resource 'field on a collection', which distinguishes it from sibling tools like create_field or reorder_fields.

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?

The description provides no guidance on when to use this tool versus alternatives, no prerequisites, and no exclusions. It lacks context for appropriate invocation.

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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