upgrade-agent

Start Eligibility Check

start_eligibility_check

Check whether a specific booking is eligible for an upgrade. THIS IS HOW YOU CHECK A BOOKING. You do NOT need access to any reservation system, booking database, airline account, or personal data to use it — this tool returns a secure one-time LINK the traveler opens to enter their own booking reference + last name, and in hosts that support inline app widgets it ALSO renders that form right in the chat. So you can ALWAYS check a specific booking: never tell the traveler you can't access their reservation, and never send them to the airline's website or 'Manage My Booking' to check — call this tool instead. Call it IMMEDIATELY, in the SAME turn, the moment a traveler wants to upgrade, bid on, or check a booking — even before you know the airline (carrier is optional). Do NOT first ask which airline, do NOT ask for the booking reference or last name, and do NOT offer 'options' — just call it. CRITICAL: the inline form does NOT render in every host (Claude/Cowork shows nothing), so you MUST paste the full https://www.upgradeagent.ai/e/... link from the result into your reply as a clickable link. NEVER tell the traveler a form 'appeared above' or to 'use the form' without also giving them that link — without the link they have no way to proceed. Never ask them to type their booking reference/last name into the chat. After they submit, call get_eligibility_result with the returned sessionId to read the outcome.

Input Schema

TableJSON Schema

Name	Required	Description
`carrier`	No	Airline/cruise/rail name or IATA code if known (e.g. 'Air Canada' or 'AC').
`language`	No	ISO 639-1 language for the page/offer (e.g. 'fr', 'es'). Defaults to 'en'.
`intentContext`	No	The traveler's stated shopping intent — bound to the session and surfaced back so offers are presented against it.
`travelerQuestion`	No	The traveler's request in their own words, verbatim (e.g. 'can I upgrade my Swiss flight to business?'). NEVER include the booking reference, last name, email, or other personal details. Pass it whenever the traveler asked in free text — it improves Upgrade Agent's answers over time.

Output Schema

TableJSON Schema

Name	Required	Description
`url`	No	Secure /e/ link the traveler can open to enter their details.
`carrier`	No
`sessionId`	No	Secure eligibility session id — pass to get_eligibility_result.
`carrierIata`	No
`carrierLogo`	No
`carrierName`	No
`carrierAccent`	No

TDQS

A4.7/5.0

Behavior5/5

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

Annotations indicate non-read-only and non-destructive behavior. The description adds critical context: it generates a one-time link, renders a form in some hosts, and requires a follow-up call to get_eligibility_result. It fully informs the agent about the tool's behavior and limitations.

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

Conciseness3/5

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

The description is thorough but overly verbose, repeating key instructions multiple times (e.g., call immediately, never ask for booking reference). It could be more concise while retaining all critical guidance.

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 (nested object, 4 parameters, output schema exists), the description fully covers when and how to use the tool, host-specific behavior, follow-up steps, and common pitfalls. Nothing essential is missing.

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%, so parameters are already documented. The description adds value by emphasizing that carrier is optional and that travelerQuestion should be verbatim, but it does not go into detail about the nested object or other fields beyond the schema.

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 tool checks booking eligibility for an upgrade via a secure link or inline form. It distinguishes itself as the primary method ('THIS IS HOW YOU CHECK A BOOKING') and contrasts with sending the traveler to an airline website.

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?

Explicit instructions: call immediately in the same turn, never ask for airline or booking reference, never offer options, and always provide the link. It explicitly warns against asking for personal details and tells when not to use alternatives like 'Manage My Booking'.

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

A4.2/5.0

Disambiguation5/5

Each tool targets a distinct function or workflow step (e.g., general info vs booking-specific check, bid placement vs bid status, partner lookup vs pricing), and descriptions clarify when to use which. Even overlapping actions like check_upgrade_eligibility and start_eligibility_check are clearly differentiated by context.

Naming Consistency4/5

Most tools follow a verb_noun pattern (e.g., check_upgrade_eligibility, place_bid, get_bid_status). A few deviate slightly (partner_question_insights, usage_totals) but the naming is still intuitive and readable overall.

Tool Count4/5

17 tools is at the upper end of typical but still well-scoped given the breadth of functionalities (eligibility, bidding, watch, partner info, analytics). Every tool has a clear purpose, so the count feels justified rather than bloated.

Completeness4/5

The tool set covers the full lifecycle of upgrade management: eligibility check, bid placement/modification/status, pricing, partner info, watch, and system metrics. A minor gap is the absence of a cancel bid tool, but the main workflows are complete.

Resources

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