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get_schema

Retrieve the graph schema to discover available node and edge types with counts. Use it to explore graph structure before querying.

Instructions

Get the graph schema: available node and edge types with counts.

Use this to:

  • Discover what types exist: "What node types does this graph have?"

  • Validate edge types before traverse_graph or get_neighbors

  • Understand graph structure before writing Datalog queries

  • Find correct type names (e.g., "http:route" not "HTTP_ROUTE")

Options:

  • type: "nodes" (node types only), "edges" (edge types only), "all" (default)

Tip: Run this first when exploring a new graph to learn the available vocabulary.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
typeNonodes, edges, or all (default: all)
Behavior4/5

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

No annotations are provided, so the description carries full burden. It describes that it returns types and counts, but doesn't detail performance or limits. However, for a simple read-only discovery tool, the behavioral context is adequate.

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 well-structured with a clear opening, bullet-point use cases, options, and a tip. Every sentence adds value without redundancy.

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

Completeness5/5

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

For a simple discovery tool with one parameter, the description is comprehensive: it explains purpose, use cases, parameter options, and return contents, fully compensating for the lack of an output schema.

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

Parameters4/5

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

Schema coverage is 100%, and the description adds value by explaining the effect of each option ('nodes', 'edges', 'all') and providing usage examples, going beyond the schema's enum definition.

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 it gets the graph schema (node/edge types with counts). It includes specific use cases like discovering types, validating edge types, and finding correct type names, differentiating it from sibling tools.

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

Usage Guidelines5/5

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

Explicitly lists when to use this tool (discover types, validate edge types, understand structure, find correct names) and provides a tip to run it first when exploring a new graph.

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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