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netintel_jwt_inspector

Decode a JWT to inspect header and payload, check expiry, and flag security issues like weak algorithms.

Instructions

Decode a JWT token — inspect header and payload, check expiry, flag security issues like weak algorithms.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tokenYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.1.61

TDQS

A3.7/5.0
Behavior3/5

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

With no annotations, the description carries the full burden of behavioral disclosure. It implies a read-only inspection by using 'Decode', 'inspect', 'check', and 'flag', but it does not state whether signature verification is performed, what permissions or inputs are required, or how the results are returned.

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?

A single front-loaded sentence with no filler. The primary action is first, and the additional capabilities are listed compactly after the dash.

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

Completeness3/5

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

No output schema exists, so the description must convey return behavior. It sketches outputs as header, payload, expiry, and security flags, but omits important details such as signature verification status and return format.

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 schema description coverage is 0% for the single required parameter. The description compensates minimally by identifying the input as a JWT token, but it adds no format or syntax details beyond what the property name 'token' already suggests.

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 (Decode) and resource (JWT token), then enumerates the concrete functions: inspect header and payload, check expiry, flag security issues. Sibling tools contain no other JWT-specific tool, so it is clearly distinguishable.

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

Usage Guidelines3/5

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

The description implies use for analyzing a JWT token, but it does not explicitly state when to use this tool versus alternatives or when not to use it. No prerequisites are mentioned.

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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