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warp-agent-mcp

by io.github.warpfreight
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Get Shipment Events

events
Read-only

Get the full tracking event history for a shipment (timeline of pickups, in-transit updates, deliveries). Auth required.

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": {
      "shipment_id": "<shipment_id>"
    },
    "name": "events"
  }
}

Input Schema

NameRequiredDescriptionDefault
shipment_idYesShipment ID from book response

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observed

TDQS

A4/5.0
Behavior4/5

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

Annotations already declare readOnlyHint=true, so the description's mention of 'Auth required' adds value beyond annotations. It discloses the return type (timeline of events) but omits details like pagination, ordering, or error handling. 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?

The description is a single, front-loaded sentence with parenthetical examples. Every word adds value; no redundancies.

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 1-parameter retrieval tool with no output schema, the description covers purpose, auth requirement, and example content. Minor gaps (e.g., no mention of pagination) are acceptable given the tool's simplicity.

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 coverage is 100% and the single parameter 'shipment_id' is described in the schema as 'Shipment ID from book response'. The tool description adds no further parameter details, so it meets the baseline but does not exceed it.

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 action ('Get') and resource ('full tracking event history for a shipment'), with concrete examples (pickups, in-transit updates, deliveries). It distinguishes from siblings like 'track' by specifying 'full history' and 'timeline'.

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 mentions 'Auth required' but does not provide explicit guidance on when to use this tool versus alternatives like 'track' or 'get_documents'. No exclusion criteria or alternative recommendations are given.

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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