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Validate US Address

logistics.shipengine.validate
Read-onlyIdempotent

Validates and standardizes US addresses, returning USPS-verified results with corrected spelling, ZIP+4, and validation status to catch errors before shipping.

Instructions

Validate and standardize a US address — returns USPS-verified address with corrected spelling, ZIP+4, and validation status. Catches typos, missing info, and invalid addresses before shipping (ShipEngine)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
address_line1YesStreet address (e.g. "1 E 161 St")
address_line2NoApartment, suite, unit (e.g. "Apt 4B")
cityNoCity name (e.g. "Bronx")
stateNoState code (e.g. "NY")
postal_codeNoZIP code (e.g. "10451")
countryNoCountry code (default US)US

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultNoTool response payload. Shape varies per tool — consult the tool description and inputSchema. May be an object, array, string, or number depending on the upstream provider response.
errorNoPresent only when the call failed. Includes error code, message, request_id, and any provider-specific extras.
Behavior4/5

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

Annotations already indicate readOnlyHint=true and destructiveHint=false. The description adds valuable behavioral details: returns corrected spelling, ZIP+4, and validation status. This exceeds what annotations provide and aligns with them.

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 two sentences long, front-loads the core function, and every word adds value. No extraneous information.

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?

Given the complexity (6 parameters, output schema exists), the description succinctly explains the tool's purpose, output, and use case. It is complete enough for an agent to decide when to invoke this tool.

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% with descriptive parameter names and descriptions. The description does not add new information about individual parameters beyond the schema, so it meets the baseline but does not enhance 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 verb 'Validate and standardize' combined with the resource 'US address', and specifies the output includes USPS-verified address with corrections and validation status. This distinguishes the tool from sibling tools like logistics.shipengine.rates or logistics.shipengine.carriers.

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 mentions 'before shipping' as the context and calls out common use cases (typos, missing info, invalid addresses). Although it does not explicitly list when not to use or mention alternatives, the context is clear enough for most scenarios.

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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