House number numerology

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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds genuine operational context beyond that: credit cost (10, Tier 1), the POST endpoint, and the required parameter. However it never explains the cost/consumption implications or the fact that the driver/conductor comparison depends on supplying a birth date, so behavioral disclosure beyond annotations is real but thin.

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 content is front-loaded into a single dense sentence followed by a compact metadata block (group, endpoint, required, cost). Every clause carries substance about the computation, though the one long compound sentence packs five separate concepts together, which slightly hurts parsing for an agent scanning quickly.

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?

An output schema exists, so return values need not be explained, and cost/endpoint/required-parameter are disclosed. The remaining gap is the date parameter, whose purpose and effect on the 'driver and conductor' compatibility output is left unstated, which matters for a tool whose headline feature depends on it. Adequate but not complete for a tool with this input ambiguity.

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 33%: countLetters is documented in the schema and merely restated here, while number is self-evident from the name and pattern. The date parameter has no description anywhere, and the description only hints at its role indirectly through 'compatibility with the driver and conductor', without stating whose date it is or that it is optional. With one of three parameters undocumented and only an oblique clue, this does not fully compensate for the coverage gap.

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 names a specific resource and computation: total/reduction of a house or flat number, Chaldean letter-suffix counting (12B), Cheiro compound reading, and driver/conductor compatibility. That is clearly distinct from the mobile/vehicle number siblings in the catalog. It loses a point only because it is phrased as a nominal list of outputs rather than a leading verb statement of what the tool does.

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?

There is no when-to-use or when-not-to-use guidance, and no named alternative such as the vehicle or mobile number tools that handle the same kind of address-style input. The [Group: Numerology: Indian] tag and endpoint are metadata, not routing guidance. An agent must infer the use case entirely from the resource noun.

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