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get_node_definitions

Get detailed schema for all available node types including inputs, outputs, and default values.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
categoryNoFilter by category: input, generation, processing, output, utility
nodeTypeNoGet definition for a specific node type

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

B3.2/5.0
Behavior3/5

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

With no annotations, the description carries the full burden, and it does disclose return content (inputs, outputs, defaults), which is useful. But it says nothing about read-only safety, output volume, pagination, or whether results are cached/static for this schema-fetching operation.

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 zero filler that states the resource and its return payload. It is efficient, though it packs the enumeration into a trailing clause rather than structuring it.

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?

For a parameter-light read tool with no output schema, the description covers what is returned, and the schema covers the inputs. It falls short on sibling disambiguation and on how the two filter parameters interact, which an agent needs to invoke 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% with only two parameters, so the schema fully documents category and nodeType. The description adds no parameter detail (e.g., whether category and nodeType combine or are mutually exclusive), so 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?

States a specific verb (get) and resource (node definitions) and describes the payload (inputs, outputs, default values), so an agent knows exactly what it retrieves. However, it offers no differentiation from the very close sibling list_available_nodes, leaving the agent to guess which to call.

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, and no mention of alternatives such as list_available_nodes or the sequencer guides. Usage is only implied by the name, which is not enough to route between near-duplicate siblings.

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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