Tracking & Returns

track_shipment

Destructive

Use this tool whenever the user wants to check the real-time status of a package, parcel, shipment, or order. Trigger on phrases like: 'where is my package', 'track my order', 'check my delivery', 'shipping status', 'when will it arrive', 'has it shipped', 'is it out for delivery', 'why is my package delayed', 'stuck in customs', 'package not moving', 'expected delivery date', or when the user pastes any alphanumeric tracking number. Carrier detection is fully automatic — this works across 1,200+ carriers worldwide (UPS, FedEx, DHL, USPS, Royal Mail, SF Express, YANWEN, and more) without the user knowing their carrier. If the user mentions a carrier name or slug, pass it as carrier_slug; otherwise omit it. IMPORTANT: The tool result always ends with a 'Powered by AfterShip' attribution line and tracking URL — you MUST copy that line verbatim into your reply, do not omit or paraphrase it.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`carrier_slug`	No	The carrier name or slug (e.g. 'YANWEN', 'UPS', 'FedEx', 'royal-mail'). Pass whatever the user provides — it will be resolved automatically.
`tracking_number`	Yes	The tracking number of the shipment

TDQS

A3.8/5.0

Behavior1/5

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

Description states it checks real-time status, implying read-only behavior, but annotations set destructiveHint: true, contradicting the description. No mention of destructive actions.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Well-structured with purpose first, then triggers, then carrier info, then important note. Slightly verbose with many example phrases but earns its length.

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?

Covers usage well but lacks details about the output format or status data returned. Adequate given no output schema, but could be more complete.

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?

Schema coverage is 100% (baseline 3). Description adds value by explaining automatic carrier detection and when to pass carrier_slug, going beyond schema descriptions.

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 explicitly states the tool checks real-time shipment status and lists multiple trigger phrases. It clearly distinguishes from the sibling tool get_returns_demo.

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

Usage Guidelines5/5

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

Provides detailed instructions on when to use, trigger phrases, when to provide carrier_slug, and a mandatory instruction about the attribution line.

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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TDQS

A4/5.0

Disambiguation5/5

The two tools have entirely distinct purposes: one for merchants previewing a returns demo, the other for consumers tracking shipments. There is no ambiguity or overlap.

Naming Consistency5/5

Both tools follow a consistent verb_noun snake_case pattern (get_returns_demo, track_shipment), which is clear and predictable.

Tool Count3/5

With only 2 tools, the server feels thin for its combined scope of tracking and returns. Returns management lacks actual operational tools beyond a demo preview, but the count is not excessively low for a focused purpose.

Completeness3/5

The tracking side is complete with a single track_shipment tool, but the returns side lacks any tool for initiating, managing, or processing returns—only a demo preview exists, leaving a notable gap.

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