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validate_uuid

Validate UUID format

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
uuidYesUUID string

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed3 schema fields changed
    • removedInput schema / properties / args
      Removed value: -{
-  "description": "Tool arguments",
-  "properties": {
-    "text": {
-      "description": "Primary input text",
-      "type": "string"
-    }
-  },
-  "type": "object"
-}
    • addedInput schema / properties / uuid
      Added value: +{
+  "description": "UUID string",
+  "type": "string"
+}
    • changedInput schema / required
      Previous value: -[]New value: +[
+  "uuid"
+]
  2. Added

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are present, so the description must carry the full behavioral burden. It only states the action without disclosing the return format, error handling, accepted UUID versions, or case sensitivity, which are essential for a validation tool.

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?

The description is a single concise sentence that is easily front-loaded. It earns its place but omits useful elaboration, striking a balance between brevity and sufficiency.

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 tool's simplicity and the absence of an output schema, the description is underspecified. It does not explain what the tool returns (e.g., boolean, error), which UUID standards it accepts, or edge cases like nil UUIDs, making it incomplete for reliable 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?

The input schema fully describes the 'uuid' parameter with 'UUID string' at 100% coverage, so the baseline of 3 applies. The description adds no additional semantic detail about the expected format or constraints.

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?

The description uses the specific verb 'Validate' and names the resource 'UUID format', which clearly identifies the tool's function. It distinguishes from sibling validation tools by the UUID-specific scope, though it could further specify UUID versions or return type.

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?

No usage context is provided. The description does not indicate when to choose this tool over sibling validators like validate_domain or validate_email, nor mention any prerequisites or conditions.

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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