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Python
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zdx_get_application_user

Read-only

Get one user's ZDX detail for an application (per-device breakdown).

Instructions

Get one user's ZDX detail for an application (per-device breakdown).

Read-only. Returns the user's score plus the nested per-device metrics for the since HOURS window (default 2h). Use app_id from zdx_list_applications and user_id from zdx_list_application_users.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
sinceNo
app_idYes
user_idYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed5 schema fields changedv0.15.3
    • removedInput schema / additionalProperties
      Removed value: -false
    • addedInput schema / properties / app_id / title
      Added value: +"App Id"
    • addedInput schema / properties / since / title
      Added value: +"Since"
    • addedInput schema / properties / user_id / title
      Added value: +"User Id"
    • addedInput schema / title
      Added value: +"zdx_get_application_userArguments"
  2. Changed10 schema fields changedv0.14.0
    • addedInput schema / additionalProperties
      Added value: +false
    • removedInput schema / properties / app_id / description
      Removed value: -"The unique ID for the ZDX application."
    • removedInput schema / properties / app_id / title
      Removed value: -"App Id"
    • removedInput schema / properties / service
      Removed value: -{
-  "default": "zdx",
-  "description": "The service to use.",
-  "title": "Service",
-  "type": "string"
-}
    • removedInput schema / properties / since / description
      Removed value: -"Number of hours to look back (default 2h)."
    • removedInput schema / properties / since / title
      Removed value: -"Since"
    • removedInput schema / properties / user_id / description
      Removed value: -"The unique ID for the ZDX user."
    • removedInput schema / properties / user_id / title
      Removed value: -"User Id"
    • removedInput schema / title
      Removed value: -"zdx_get_application_userArguments"
    • changedOutput schema / (root)
      Previous value: -{
-  "properties": {
-    "result": {
-      "additionalProperties": true,
-      "title": "Result",
-      "type": "object"
-    }
-  },
-  "required": [
-    "result"
-  ],
-  "title": "zdx_get_application_userOutput",
-  "type": "object"
-}New value: +null
  3. First observedv0.12.7

TDQS

A4.5/5.0
Behavior4/5

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

The description goes beyond the readOnlyHint annotation by detailing the return contents: the user's score plus nested per-device metrics, and clarifies the `since` parameter's time unit and default. This is useful context for an agent invoking the tool.

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 three sentences, front-loaded with the core purpose, and includes only necessary details. No fluff or repetition.

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 simple get operation with 3 parameters and no output schema, the description covers purpose, parameters, and return value. It is sufficiently complete for an agent to select and invoke the tool correctly.

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?

With 0% schema description coverage, the description compensates by explaining that `since` is in hours with a default of 2h, and by specifying the source of app_id and user_id. This adds meaning beyond the raw schema, though it does not describe all nuances like the null handling.

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 the tool's function: retrieving a single user's ZDX detail for an application with a per-device breakdown. It uses specific verbs and resources, and the scope is distinct from sibling tools like zdx_list_application_users and zdx_get_application.

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 provides explicit guidance on where to obtain the required IDs: app_id from zdx_list_applications and user_id from zdx_list_application_users. This clarifies prerequisites and context, though it does not explicitly state when not to use this tool or contrast it with alternatives.

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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