Create body measurement

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

No annotations provided, so description carries full burden. It discloses that all measurement fields are optional, specifies units for weights (kg) and girths (cm), and warns about 409 conflicts. This is good transparency for a creation tool, though auth and rate limits are not covered.

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?

Two concise sentences with no redundancy. Front-loads the action and key constraints. Every sentence adds value.

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 high complexity (18 parameters, no output schema, no annotations), description covers core behavior (creation, conflict) but omits return value (e.g., does it return the created entry?). Adequate but incomplete for full understanding.

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 6% (only 'date' described). The description adds some meaning by categorizing fields (weights, girths) and noting optionality, but does not explain individual fields. Many parameters remain undocumented, insufficiently compensating for low coverage.

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?

Clearly states the verb 'Create' and resource 'body measurement entry', and specifies the date uniqueness constraint (fails with 409). It distinguishes from siblings like 'update-body-measurement' implicitly through creation vs update, though not explicitly compared.

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?

Provides when to use: to create an entry for a given date. Indicates the conflict behavior (409 if exists), which helps decide when not to use (if entry already exists). No explicit alternatives or exclusions mentioned, leaving some ambiguity.

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