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?
With no annotations, the description discloses the tool's behavior by listing the return fields and the delta summary. It does not contradict any annotations (none provided) and gives insight into the comparison output, though it doesn't mention edge cases or more detailed behavior. The description provides sufficient transparency for a simple comparison tool.
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 a single, focused sentence that front-loads the core purpose and then specifies the return details. Every phrase earns its place, and there is no redundant or extraneous information.
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?
For a tool with a simple schema and no output schema, the description covers the return value, comparison criteria, and the delta summary. It is largely complete, though it could explicitly mention that single-visa details are handled by a sibling tool for better contextual guidance. Overall, it provides enough information for an agent to use the tool correctly.
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?
The only parameter, visa_ids, is not explicitly described in the description, leaving it to the agent to infer from the name and context of comparing visa pathways. While the schema provides structural constraints (array of 2-3 strings), the description does not detail how IDs are sourced or formatted. The description partially compensates by implying that the IDs correspond to the visa pathways under comparison.
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 clearly states the tool compares 2-3 visa pathways side-by-side, with a specific verb ('compare') and resource ('visa pathways'). It also details the comparison dimensions (processing time, cost, validity, PR-pathway, delta summary), which distinguishes it from siblings that likely focus on individual visas or country overviews.
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 implies the intended use case: comparing multiple visa options. It clearly conveys when to use the tool (when comparing 2-3 visas) but does not explicitly mention alternatives or exclusion criteria. The context is clear enough for an agent to select it over single-visa tools like transita_visa_details.
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 query type: comparison, country-level overview, profile matching, live status, nationality-based search, and detailed visa info. Even though visa_details and programme_status both concern a single pathway, their purposes are clearly separated as static details versus live intake status.
All tools share a consistent transita_ prefix and use snake_case, but the post-prefix patterns are mixed: compare_visas and match_visas are verb_noun, while country_overview, programme_status, and visa_details are noun-based. This is a minor inconsistency that does little to impede selection.
Six tools is an appropriate scope for a visa advisory server, covering search, comparison, detail, and status-checking without redundancy. Each tool has a clear role in the user journey from initial exploration to specific pathway evaluation.
The server covers the core advisory workflow: find destinations by nationality, get country overviews, match profiles, compare pathways, fetch details, and check current intake status. A notable minor gap is the absence of a direct 'list all visas for a country' tool, but search_by_nationality and country_overview mitigate this.