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HefestoAI

by io.github.artvepa80
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Read-onlyIdempotent

Return a short static comparison of HefestoAI with one named tool. Use it when the user asks how HefestoAI differs from another scanner. No live lookup and no code is inspected. All arguments are optional: {} compares with sonarqube. Known values: sonarqube (the default when tool is omitted), snyk, github-advanced-security, semgrep, claude-code-security, coderabbit, qodo. Any other value is answered as sonarqube.

Input Schema

NameRequiredDescriptionDefault
toolNoOptional. Tool to compare with: sonarqube (default), snyk, github-advanced-security, semgrep, claude-code-security, coderabbit, or qodo.

Output Schema

NameRequiredDescriptionDefault
textYesComparison paragraph. Same string as content[0].text.
toolYessonarqube, snyk, github-advanced-security, semgrep, claude-code-security, coderabbit, or qodo.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • addedInput schema / examples
      Added value: +[
+  {},
+  {
+    "tool": "semgrep"
+  }
+]
    • changedInput schema / properties / tool / description
      Previous value: -"Tool to compare with: sonarqube (default), snyk, github-advanced-security, semgrep, claude-code-security, coderabbit, or qodo."New value: +"Optional. Tool to compare with: sonarqube (default), snyk, github-advanced-security, semgrep, claude-code-security, coderabbit, or qodo."
  2. Changed2 schema fields changed
    • changedInput schema / properties / tool / description
      Previous value: -"Tool to compare with: sonarqube (default), snyk, github-advanced-security, semgrep, or claude-code-security."New value: +"Tool to compare with: sonarqube (default), snyk, github-advanced-security, semgrep, claude-code-security, coderabbit, or qodo."
    • changedOutput schema / properties / tool / description
      Previous value: -"sonarqube, snyk, github-advanced-security, semgrep, or claude-code-security."New value: +"sonarqube, snyk, github-advanced-security, semgrep, claude-code-security, coderabbit, or qodo."
  3. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "additionalProperties": false,
+  "description": "Static comparison. tool is the known value actually answered (unknown names are sonarqube). text is the content text.",
+  "properties": {
+    "text": {
+      "description": "Comparison paragraph. Same string as content[0].text.",
+      "type": "string"
+    },
+    "tool": {
+      "description": "sonarqube, snyk, github-advanced-security, semgrep, or claude-code-security.",
+      "type": "string"
+    }
+  },
+  "required": [
+    "tool",
+    "text"
+  ],
+  "type": "object"
+}
  4. Changed2 schema fields changed
    • addedInput schema / additionalProperties
      Added value: +false
    • changedInput schema / properties / tool / description
      Previous value: -"Tool to compare with (sonarqube, snyk, github-advanced-security, semgrep, claude-code-security)"New value: +"Tool to compare with: sonarqube (default), snyk, github-advanced-security, semgrep, or claude-code-security."
  5. First observed

TDQS

A4.6/5.0
Behavior5/5

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

Adds real context beyond the annotations: the comparison is static, no live lookup occurs, no code is inspected, and invalid tool values fall back to sonarqube. Those are non-obvious behavioral facts an agent needs in order to trust and describe the output.

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?

Front-loaded with the action, then usage, then defaults and accepted values — logical order with no filler. The known-values enumeration is repeated verbatim in the schema, which is mild 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 single optional-enum tool with an output schema, the description covers scope, default behavior, fallback handling, and what is not done. Nothing needed to invoke it correctly is missing.

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%, so the baseline is 3, but the description goes further by spelling out that all arguments are optional, that {} defaults to sonarqube, and that unknown values are treated as sonarqube — semantics the schema does not encode. It does partly duplicate the enum list already in the schema.

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?

States a specific verb and resource ('Return a short static comparison of HefestoAI with one named tool') and immediately scopes it as static, so an agent can distinguish it from the analyze/install/pricing siblings without opening the 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?

Gives an explicit trigger ('Use it when the user asks how HefestoAI differs from another scanner') and clarifies it is not a live lookup, which rules out a plausible misfire. It stops short of naming an alternative tool to use instead, so it is clear but not a full when/when-not/alternative statement.

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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