Life Path Number (chaldean)

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

While annotations already declare readOnlyHint=true and idempotentHint=true, the description adds minimal behavioral context (reduction method). However, the example request body includes a 'name' parameter not present in the input schema, which is misleading and contradictory. The description does not clarify the role of optional location parameters or whether they affect the calculation.

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 (two sentences plus an example) and front-loaded with the action verb. The group tag is useful for categorizing. Every element serves a purpose without redundancy.

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 absence of an output schema, the description should describe the return value format or range, but it only says 'Calculate the Life Path number.' It also fails to explain the optional location parameters and whether they influence the result. The contradictory 'name' parameter in the example further reduces completeness.

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%, so baseline is 3. The description adds meaning for the 'date' parameter by confirming it should be the birth date and that reduction is applied. However, it provides no explanation for the optional parameters (latitude, longitude, timezoneOffset), leaving their purpose ambiguous.

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 specifies the action ('Calculate the Life Path number'), the resource (birth date), and the system (Chaldean). It distinguishes from siblings like Pythagorean and Kabbalistic life path tools by explicitly stating 'Chaldean system' and using a group tag. The verb 'Calculate' is specific and unambiguous.

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 provides no guidance on when to use this tool vs. alternatives. Among numerous numerology life path siblings (Pythagorean, Kabbalistic, Vedic), no criteria are given for selection. The group tag is implicit, but explicit when-to-use or when-not-to-use instructions are absent.

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