Quarter Lord

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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so safety is fully covered. The description adds genuinely useful operational context — endpoint and a 10-credit Tier 1 cost — but says nothing about what the response conveys or how targetDate affects 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 purpose line is front-loaded and the metadata block is compact; nothing is wasted. It is, however, arguably too terse for a specialized technique and leans on the bracketed metadata rather than explanatory prose.

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?

A full output schema exists, so return values need not be described, and the input schema is richly documented. What remains missing is conceptual grounding: what a 'seasonal quarter' is, which point the quarter is measured from, and why a required targetDate coexists with birth data — enough ambiguity to leave the description only marginally adequate.

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%, and the embedded body description already explains date/time/latitude/longitude formats, timezone handling, and houseSystem letters in detail. The description adds nothing about how targetDate interacts with the natal data to select the quarter, so the baseline 3 applies.

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 Hellenistic technique ('Lord of the chart's seasonal quarter'), which implicitly separates it from siblings like decennials or profections by technique name. However, it is a bare noun phrase with no verb and no explanation of what is computed or returned, so an agent unfamiliar with the term cannot be sure whether it returns a planet, a time range, or an interpretation.

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 statement of when to use this tool, no prerequisites, and no reference to alternatives such as astroway_hellenistic_hand_decennials, astroway_hellenistic_schmidt_lord_of_prediction, or astroway_hellenistic_brennan_time_lord_stack, which plausibly overlap. The agent must infer selection from the tool name alone.

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