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Jsonapi Schema Get

jsonapi_schema_get

Retrieve the JSON:API schema (OpenAPI/Swagger) to discover available endpoints and data models for Drupal content entities.

Instructions

Get JSON:API schema (OpenAPI/Swagger).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
entity_typeNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

C2.6/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It implies a read-only operation via 'Get' and names the output format, but omits permissions, side effects, and any other behavioral context. This is a significant gap for a 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.

Conciseness4/5

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

A single front-loaded sentence with no wasted words. It is appropriately brief for a simple getter, though the extreme brevity contributes to the missing usage and parameter details.

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?

An output schema exists, so return values need not be explained. However, the description leaves the entity_type parameter entirely undocumented and provides no usage context, which is a meaningful gap for correct invocation of an otherwise simple tool.

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

Parameters1/5

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

The single optional parameter entity_type has 0% schema description coverage, and the description never mentions it or its role. The agent receives no guidance on what values to supply or how the parameter affects the returned schema.

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?

States a specific verb (Get) and resource (JSON:API schema) plus the output format (OpenAPI/Swagger). However, it does not explicitly distinguish this tool from siblings like jsonapi_resource_types or graphql_schema_get, so it falls short of a 5.

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?

Provides no guidance on when to use this tool versus alternatives. There are no preconditions, exclusions, or named sibling tools to route the agent. It is merely a statement of what the tool does, not when to invoke it.

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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