get_weight_month

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

Annotations already declare readOnlyHint=true and idempotentHint=true, so the agent knows it's safe. The description adds the auth requirement context beyond the annotations. No behavioral contradictions or omissions noted.

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 description is two brief sentences that front-load the purpose and then provide a critical usage note. Every word serves a purpose with zero waste.

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?

Given the simple input schema (1 param, no output schema), the description covers purpose, auth prerequisite, and scope. No output schema exists, but describing return values isn't strictly required for a simple retrieval tool. The description is complete enough for the tool's complexity.

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 100% with a well-described parameter. The description adds nothing beyond the schema for the parameter itself, but the tool-level description hints at the month context. Baseline 3 is appropriate since the schema already fully documents the single parameter.

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 states a specific verb ('Get') and resource ('weight entries for a month'), clearly distinguishing it from sibling tools like 'get_food_entries_month' which targets food rather than weight. The purpose is unambiguous.

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?

The description explicitly says 'Requires profile auth (check_auth_status first)', providing a clear precondition and referencing a sibling tool ('check_auth_status') as a prerequisite step. It lacks guidance on when not to use it or alternatives, but for a simple retrieval tool this is adequate.

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