Sessionize

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

With no annotations provided, the description carries full burden. It discloses that returns are 'organized by day and time slot' and notes the schedule may be empty under certain conditions. However, it doesn't describe authentication needs, rate limits, error conditions, or what format the schedule data takes (beyond organization).

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?

Two sentences with zero waste. First sentence states purpose and return structure. Second sentence provides important behavioral note. Appropriately sized and front-loaded with the core functionality.

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 single-parameter read operation with no output schema, the description provides adequate but minimal context. It explains what data is returned and a key condition (empty schedules), but doesn't cover error cases, authentication, or detailed return format. The absence of annotations increases the burden on the description.

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 100%, so the schema already documents the single parameter completely. The description doesn't add any parameter-specific information beyond what's in the schema. This meets the baseline expectation when schema does the heavy lifting.

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: 'Get the event schedule/agenda from Sessionize' (specific verb+resource). It distinguishes from siblings by focusing on schedule/agenda rather than sessions or speakers. However, it doesn't explicitly contrast with sibling tools like 'getSessions' which might return similar data.

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 context through the note about empty schedules if event hasn't configured session times, but doesn't provide explicit guidance on when to use this tool versus alternatives like 'getSessions'. No when-not-to-use guidance or explicit alternative recommendations are provided.

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