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by io.github.Shree-git
OverviewDiscussionsAdmin

Validate Content

validate_content
Read-onlyIdempotent

Validate content against platform requirements BEFORE publishing.

USE THIS WHEN: • Unsure if content will work on target platforms • Publishing to multiple platforms with different requirements • Want to catch errors before attempting publish

Returns specific errors (e.g., 'TikTok requires video', 'Instagram needs media') and warnings (e.g., 'text close to character limit').

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "platforms": "<platforms>",
      "content": "<content>"
    },
    "name": "validate_content"
  }
}

Input Schema

NameRequiredDescriptionDefault
contentYes
platformsYesPlatforms to validate against

Output Schema

NameRequiredDescriptionDefault
validNo
errorsNo
isErrorNo
warningsNo
platformsNo
errorMessageNo
followUpSuggestionsNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "additionalProperties": true,
+  "properties": {
+    "errorMessage": {
+      "type": "string"
+    },
+    "errors": {
+      "items": {
+        "additionalProperties": true,
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "followUpSuggestions": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "isError": {
+      "type": "boolean"
+    },
+    "platforms": {
+      "items": {
+        "additionalProperties": true,
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "valid": {
+      "type": "boolean"
+    },
+    "warnings": {
+      "items": {
+        "additionalProperties": true,
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "type": "object"
+}
  2. First observed

TDQS

A4.1/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, so the agent knows it's safe. The description adds behavioral value by stating it returns specific errors and warnings with examples, which is useful beyond the annotations.

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 concise, front-loaded with the main action, and uses a scannable bullet list for usage scenarios. Every sentence earns its place, and the examples are illustrative without padding.

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

Completeness4/5

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

Given the tool's moderate complexity, the annotations cover safety, the schema documents parameters in detail, and an output schema exists, the description adds the essential usage context. It doesn't explain all edge cases, but it's sufficient for an agent to know when and why to invoke it.

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

Parameters2/5

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

The description says almost nothing about parameters. With 50% schema description coverage, the description should compensate by clarifying what 'content' and 'platforms' mean, but it only refers to them generically. The examples hint at content requirements but don't explain the structure or required fields.

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 a specific verb and resource: 'Validate content against platform requirements BEFORE publishing.' It distinguishes itself from siblings like publish_content and preview_content by emphasizing pre-publish validation and gives concrete examples of errors/warnings.

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?

Explicit 'USE THIS WHEN' bullets provide clear contexts (unsure about platform fit, multi-platform publishing, catching errors before publish). Doesn't explicitly list when not to use or alternatives, but the context is strong enough to guide selection versus 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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