transita_compare_visasCompare 2-3 visa pathways side-by-side. Returns processing time, cost, validity, PR-pathway, and a delta summary highlighting the fastest, cheapest, and most permanent option.
| Name | Required | Description | Default |
|---|---|---|---|
| visa_ids | Yes |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description must carry the behavioral disclosure burden. It discloses the output behavior (returns processing time, cost, validity, PR-pathway, and a delta summary) and adds the notable trait of highlighting fastest/cheapest/most permanent options. It does not cover all possible edge cases, but for a read-only comparison tool this is reasonably transparent.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is compact and front-loaded with the action ('Compare') and resource. Both sentences are informative, with no filler or redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given no output schema, the description adequately covers return values (processing time, cost, validity, PR-pathway, delta summary). The single parameter is mostly explained, but the description could note that visa_ids must correspond to pre-known pathway identifiers, a minor gap.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0% and the only parameter is a generic array of strings. The description adds meaning by indicating these are visa pathway identifiers and constraining to 2-3, but it does not explain where the IDs come from or their expected format. Some compensation occurs, but not fully.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses a specific verb ('Compare') and resource ('visa pathways'), clearly stating it compares 2-3 side-by-side. The return value summary differentiates it from sibling tools like transita_visa_details, which likely focuses on a single visa.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description clearly implies use when comparing 2-3 visa pathways, which is a distinct scenario from single-detail or matching tools. It does not explicitly name alternatives or exclusions, but the context is clear enough.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.
Each tool targets a distinct step in the visa advisory workflow: nationality-based discovery, country overview, profile matching, side-by-side comparison, single-visa details, and live programme status. The overlap between compare and match is resolved by their descriptions—one compares selected pathways while the other scores a full profile against all pathways.
All tools share the transita_ prefix and use snake_case, but the suffix pattern is mixed. compare_visas, match_visas, and search_by_nationality are verb-led, while country_overview, programme_status, and visa_details are noun-phrase outputs. The consistent prefix helps, but the inconsistent verb/noun structure makes the API less predictable.
Six tools is well-scoped for a specialized visa advisory server. Each tool addresses a distinct user need from discovery to status checking, and none feels redundant or out of place.
The tool surface covers the full user journey: exploring destinations, matching eligibility, comparing visas, viewing details, and checking current intake status. There is no direct 'list all visas for a country' endpoint, but match_visas and search_by_nationality provide usable workarounds for discovery.