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@instavar/mcp-server

by instavar

Get VideoSpec schema

get_video_schema
Read-only

Retrieve the VideoSpec JSON Schema to validate video creation inputs and integrate with Instavar Studio.

Instructions

Return the public VideoSpec JSON Schema.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the read-only nature is covered. The description adds the qualifier 'public' (implying no special access), but does not elaborate beyond that. Given the simple nature of a zero-parameter getter, this is adequate but not rich.

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 a single, concise sentence that directly states the tool's purpose. Every word earns its place, with no redundancy or filler.

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 zero-parameter, read-only tool without an output schema, this description is fully complete. It specifies exactly what is returned ('public VideoSpec JSON Schema') and leaves no ambiguity about the tool's function.

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?

The input schema has zero parameters, and schema description coverage is 100%. Baseline 4 applies because there are no parameter semantics to explain; the description does not need to compensate for any coverage gap.

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?

Description clearly states the tool returns the 'public VideoSpec JSON Schema', using a specific verb ('Return') and resource. This distinguishes it from sibling getters like get_capabilities or get_template, as it specifically targets VideoSpec's schema.

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

Usage Guidelines4/5

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

The description provides clear context for when to use the tool (retrieving the VideoSpec schema), but does not explicitly mention alternatives or exclusions. The resource name is unambiguous enough that an agent can infer the appropriate scenario.

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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