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 and side-effect profile are covered. The description adds only that the result is a Shadbala-based weakest-planet calculation and mentions life areas, but it does not disclose auth, computation source, or return behavior beyond annotations.

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?

It is a single front-loaded sentence that states the essential output categories before the interpretive closing clause. Nothing is wasted, and the core concept appears first.

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?

No output schema exists, so the description must carry the return-value burden; it does list the main components (weakest graha, life areas, strength numbers), but it does not describe the shape, ordering, or interpretation of those components. Given the rich input schema and safety annotations, it is mostly complete but leaves some output 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 description coverage is 100%, and every parameter (date, time, latitude, longitude, etc.) has a descriptive field in the schema. The description adds no parameter-level meaning, but the baseline is 3 when the schema already handles this.

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 computed resource ('the weakest graha by Shadbala') and enumerates three outputs: life areas, strength numbers, and the 'planet that most needs support.' That level of specificity lets an agent distinguish it from the broader sibling planet_strength, even without naming the sibling.

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?

No sentence says when to choose this tool over siblings, what preconditions are required, or when it should be avoided. It merely describes output, leaving the agent without routing guidance.

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