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Arsel MCP Server

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by Arsel-SA
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TypeScript
Hybrid

List Contact Push Devices

list-contact-push-devices
Read-onlyIdempotent

Check a contact's push notification reachability by retrieving their registered push devices.

Instructions

List a contact's registered push devices, to check whether they can receive push notifications.

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": {
      "contact_id": "<contact_id>"
    },
    "name": "list-contact-push-devices"
  }
}

Input Schema

NameRequiredDescriptionDefault
afterNoCursor for the next page: the `id` of the last item on this page. Cannot be combined with `before`.
limitNoItems per page, 1-100. Defaults to 20.
beforeNoCursor for the previous page: the `id` of the first item on this page.
statusNoDefaults to every status, revoked and expired included.
platformNo
contact_idYesThe contact id.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.6/5.0
Behavior3/5

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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds a functional use-case but omits a materially useful behavior: that the default status filter includes revoked and expired devices (only stated in the schema). No contradiction with 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?

A single, front-loaded sentence that names the resource and its purpose with zero filler. Nothing extraneous or repeated.

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?

For a read-only list tool with no output schema, the description covers what it does and why. It could be slightly more complete by noting that revoked/expired devices are returned by default, but the schema fills most of that gap.

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?

Schema description coverage is 83%, so the schema already documents contact_id, pagination cursors, limit, status, and platform. The description adds no additional parameter meaning beyond what the schema provides, so baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource ('List a contact's registered push devices') clearly, and the phrase 'registered push devices' distinguishes it from notification-oriented siblings like list-push-notifications. However, it does not explicitly contrast with near neighbors such as get-push-device-import or get-contact.

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 clause 'to check whether they can receive push notifications' gives a use-case context, which is more than nothing. But there is no explicit when/when-not guidance and no named alternative, so the routing guidance is only implied.

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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