CCG Analysis

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

Annotations already establish readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is clear. The description adds useful operational context (POST endpoint, 100 credits, Tier 4) but does not explain authentication, rate limits, or anything about how the analysis is performed.

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 prose is front-loaded and compact: one purpose sentence followed by useful grouping, endpoint, and cost metadata. There is no redundant restatement of the schema or title.

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?

The output schema and annotations carry much of the completeness burden, and the input schema is fully documented. However, the description gives no sibling-routing guidance or usage conditions, which matters in a tool catalog with many overlapping astro-geography endpoints.

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 single top-level parameter body is fully structured in the schema. The description adds no parameter-level meaning beyond the schema, so the baseline 3 is appropriate.

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 verb (Analyse) and a precise resource/scope: progressed A*C*G lines at a target date with mundane/local aspects and latitude crossings. It is much clearer than a tautology, but it does not explicitly distinguish this tool from nearby siblings such as astroway_geo_acg, astroway_geo_acg_line_report, or astroway_geo_solar_acg.

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 stated prerequisites, and no alternative tools named. Given the large set of geo/ACG siblings, an agent is left to infer selection criteria rather than being told when CCG analysis is the right choice.

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