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tenable-mcp

tenable-mcp

by nguyenthdat
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Remote

tenable_health_check

Read-only

Check connectivity and health of the Tenable.io service. Verifies credentials and API reachability, returning server status and properties.

Instructions

Check connectivity and health of the Tenable.io service.

Verifies that the configured credentials are valid and the API is reachable. Returns server properties and status.

Example: Input: {} Output: { "status": "healthy", "server": {"version": "...", "uuid": "..."}, "license": {...} }

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "tenable_health_check"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4.3/5.0
Behavior4/5

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

Annotations provide readOnlyHint=true, and the description adds that it verifies credentials and API reachability, returning server properties. No contradictions. The behavioral context is adequately described.

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 concise, includes an example, and is well-structured. It could be slightly more terse, but it effectively communicates the essential information without unnecessary verbosity.

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 no output schema, the description compensates with an example output showing expected fields. For a simple health check, this is complete enough to guide the agent.

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 no parameters (100% coverage). The description adds an example that shows the output structure, providing meaning beyond the empty schema. Baseline for 0 parameters is 4.

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 checks connectivity and health of the Tenable.io service, verifying credentials and API reachability. This distinguishes it from sibling tools that perform specific operations like scanning or asset management.

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 explicitly says when to use the tool: to check connectivity and health. While it doesn't mention when not to use it or alternatives, the use case is unambiguous and self-contained.

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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