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 does add one genuinely useful behavioral fact not in the annotations: a fixed cost of 10 credits (Tier 1). It reveals nothing else about what is computed or returned, so with the lower annotation-bar this lands at 3.

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?

Front-loaded and tight: the purpose sentence comes first and the bracketed metadata is compact and scannable. It wastes little space, though the endpoint/group lines are boilerplate rather than decision-relevant content.

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 annotations cover the safety profile; that lowers the burden. Against 15 parameters and a specialized domain, however, the description is thin—it never explains what 'element-based' means or how the many astrology parameters influence the result.

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 only 33% across 15 parameters, so the description would need to compensate, and it does not. It restates the four required fields (date, time, latitude, longitude) verbatim from the schema and adds no meaning for the astrological controls (houseSystem, zodiacType, ayanamsa, fields) that actually shape the risk output.

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 output: an element-based risk-tolerance reading plus suggested allocation buckets. That is enough to tell it apart from vague siblings, but it never supplies a verb and does not distinguish itself from close neighbors like astroway_business_risk_profile or astroway_financial_investor_archetype.

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 guidance, no conditions, and no mention of alternatives among the many financial siblings. The bracketed metadata (group, endpoint, cost) is administrative, not usage direction, so an agent gets no help choosing this over astroway_financial_market_timing or astroway_financial_investor_archetype.

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