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upgrade-agent

by ai.upgradeagent
OverviewDiscussionsAdmin

search_upgrade_options

Read-onlyIdempotent

Find operators that offer upgrades, filtered by vertical, region, and/or product. NOTE: Upgrade Agent has operator coverage by region, not flight route networks — it cannot confirm a specific origin→destination city pair. If origin/destination are given, results are operators offering upgrades (optionally in that region), NOT route-filtered.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
originNoOrigin city/airport (informational only — not used to route-filter).
regionNo
productNo
verticalNo
destinationNoDestination city/airport (informational only — not used to route-filter).
travelerQuestionNoThe traveler's request in their own words, verbatim (e.g. 'can I upgrade my Swiss flight to business?'). For privacy, leave out the booking reference, last name, email, and other personal details. Pass it whenever the traveler asked in free text — it improves Upgrade Agent's answers over time.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / travelerQuestion / description
      Previous value: -"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."New value: +"The traveler's request in their own words, verbatim (e.g. 'can I upgrade my Swiss flight to business?'). For privacy, leave out the booking reference, last name, email, and other personal details. Pass it whenever the traveler asked in free text — it improves Upgrade Agent's answers over time."
  2. Changed1 schema field changed
    • addedInput schema / properties / travelerQuestion
      Added value: +{
+  "description": "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.",
+  "type": "string"
+}
  3. First observed

TDQS

A4.8/5.0
Behavior5/5

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

Annotations already mark the call read-only and non-destructive; the description adds a key behavioral limitation: coverage is by region, not flight route networks, and origin/destination do not route-filter. This prevents an agent from drawing a false inference that the tool can verify city pairs.

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?

Two sentences, no filler: the core action and filters come first, and the crucial caveat is set off as a NOTE. Every sentence contributes.

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?

For a read-only search tool with no required parameters and no output schema, the description covers what the tool returns conceptually, how filters behave, and the key route-network limitation. Nothing an agent needs to invoke it correctly is missing.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With only 50% schema coverage, the description compensates by clarifying that vertical/region/product act as filters and that origin/destination are informational placeholders rather than route constraints. The travelerQuestion parameter is already well described in the schema, so the overall parameter meaning is clear.

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 opens with a precise verb and object: 'Find operators that offer upgrades', and immediately enumerates the filter dimensions (vertical, region, product). It clearly positions this as a search tool, distinct from the eligibility/pricing/bid siblings, even without naming them.

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?

It gives clear context on how filters should be applied and explicitly warns that origin/destination are informational only, so agents know not to expect route-filtered results. It does not name alternative sibling tools or state explicit when-not-to-use conditions beyond the route-network limitation, so it stops short of a 5.

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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