List classes and quotas

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

No annotations are provided, so the description carries the burden. 'Reference list' implies a read-only, static data retrieval, which is a useful behavioral hint, but the description does not explicitly state that it makes no modifications, returns cached data, or any other behavioral characteristics. It adds 'for interpreting or constructing other tool calls' as context, but is not fully transparent about side effects.

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 clear sentence that front-loads the resource type and purpose. It contains no redundant words, but could have been slightly more direct (e.g., 'Lists...' rather than 'Reference list...'). Overall efficient and well-structured.

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 simple tool with one optional parameter, full schema coverage, and no output schema, the description adequately covers what the tool provides. It does not describe the return value structure, but this is not required given the simplicity and the fact that no output schema exists.

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 schema has 100% description coverage for the single 'kind' parameter, including its enum values. The description itself adds no parameter-specific information, but per the baseline rule, when schema coverage is high the description need not repeat parameter details.

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 identifies the tool as a reference list for Indian Railways travel class codes and booking quota codes, with a stated purpose of interpreting or constructing other tool calls. It is specific about the resource and distinct from the operational siblings like check_seat_availability or get_fare, though it does not explicitly name them.

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 usage: 'for interpreting or constructing other tool calls', which tells the agent when this reference data is needed. However, it does not explicitly contrast with sibling tools or give conditions for when not to use it, leaving the guidance largely implicit.

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