Expression / Destiny (pythagorean)

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

Annotations already indicate readOnlyHint=true, idempotentHint=true, and non-destructive. The description adds no additional behavioral context beyond the calculation method. No contradictions with annotations are present.

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 brief and includes a group tag and example. However, it lacks explanations for parameters and does not resolve the schema mismatch. It is concise but incomplete in conveying necessary 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?

Given the complexity of the numerology tool family and the discrepancy between description and schema, the description fails to provide a complete picture. No output schema exists, and the required input for calculation (name) is missing from the schema. The tool cannot be invoked correctly as described.

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 coverage is 100% but the description's example includes a 'name' field not in the schema, causing confusion. The description does not explain why location parameters (latitude, longitude, timezoneOffset) are relevant for a name-based calculation. This misalignment reduces clarity on parameter usage.

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 it calculates the Expression/Destiny number from the full birth name using the Pythagorean system. However, the input schema does not include a 'name' parameter, contradicting the description and example. Among many similar numerology siblings, the description does not differentiate beyond the system name.

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?

No explicit guidance is provided on when to use this tool versus other expression number tools (Chaldean, Kabbalistic, Vedic). The example is present but does not clarify the context or prerequisites. The description lacks instructions on handling the missing 'name' parameter in the schema.

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