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wlaubernds

zendesk-mcp-server

by wlaubernds

get_ticket

Fetch full Zendesk ticket details by ID, including comments and metadata, for support queries.

Instructions

Get full details of a specific ticket by ID, including all comments and metadata

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
ticket_idYesThe Zendesk ticket ID
include_commentsNoWhether to include all ticket comments (default: true)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A3.6/5.0
Behavior3/5

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

With no annotations, the description carries the full burden, and it does disclose the returned payload shape (comments and metadata), which is useful context beyond the schema. However, it says nothing about permission requirements, behavior for a nonexistent or inaccessible ticket, comment volume, or response format, so important behavioral traits remain undisclosed.

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 resource and the payload scope are both stated immediately. Nothing is redundant or padded.

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 simple two-parameter read tool with full schema coverage, the definition covers the essentials: what it returns and the identifying input. The remaining gap is the absence of any output schema or stated failure behavior, which is a minor omission for a tool of this complexity.

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 100%, so both parameters (ticket_id, include_comments) are already fully documented in the schema, and the description adds no format, ID-type, or default-behavior detail beyond it. Baseline 3 applies when the schema does the heavy lifting.

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?

The description states a specific verb (Get) and resource (a specific ticket by ID) plus the payload scope (all comments and metadata), which separates it from search_tickets without naming it. It is clear and unambiguous, but stops short of explicitly differentiating itself from its siblings.

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?

Usage is implied rather than stated: 'by ID' signals a single-record fetch, which contrasts with the sibling search_* tools, but there is no explicit when-to-use guidance, no stated prerequisites, and no named alternative. An agent can infer the intent, but the definition does not help it choose.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.