tool_plan_trip_package

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

Annotations are absent, so the description must fully disclose behavior. It describes the output components and implies a read-only planning operation via 'booking URLs/checklist,' but does not explicitly state that the tool does not modify data. This is sufficient but not fully explicit, earning a 4.

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 concise: one sentence for purpose, one for usage guideline, then a parameter list. No extraneous text; every sentence serves a purpose.

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 11 parameters and no output schema, the description covers what the tool returns and when to use it. It also distinguishes from sibling tools. This is complete for the tool's complexity.

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?

With 0% schema coverage, the description must explain all parameters. It provides clear definitions, examples, and relationships (e.g., return_date vs trip_length_days), adding substantial meaning beyond the schema definitions.

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's purpose: 'Complete bookable trip package in one call: flights, hotels, visa, weather, advisory, attractions, ground transport, cost estimate + booking URLs/checklist.' It uses a specific verb-resource combination and distinguishes from sibling tools by specifying when to use it.

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?

Explicit guidance is given: 'Use when the destination is decided; use score_destinations if still deciding.' This directly tells the agent when to use this tool versus an alternative, which is excellent.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.