timps_wearable_health_coach

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

With no annotations, the description carries the full burden of disclosing behavior. It mentions 'safety guardrails' but does not elaborate on what those are, whether the tool is read-only, or what kind of output format to expect. It also doesn't state if any external data sources or permissions are needed. The description adds some context about the nature of the output (coaching plan) but lacks deeper behavioral specifics, scoring a 3.

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 a single, well-structured sentence. It front-loads the action and lists the specific data types, then states the intended output. There is no redundancy or fluff; every part contributes to the tool's purpose. This is a model of conciseness.

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 tool's complexity (interpreting multiple data types and generating a coaching plan) and the absence of an output schema, the description is too sparse. It does not specify the format of the coaching plan, how the 'request' parameter provides or requests data, or how the language parameter influences output. The mention of 'safety guardrails' is vague. The description needs more detail to fully prepare an agent, so a 2 is appropriate.

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?

The schema description covers 100% of the parameters, so the baseline is 3. The tool description adds no additional meaning about how 'request' or 'language' are used; it doesn't clarify how the plain-English request maps to the wearable data or how the language parameter affects the plan. Since the schema already describes the parameters, and the description adds nothing extra, a 3 is warranted.

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 clearly states the tool's purpose: it interprets specific wearable data types (HRV, sleep, RHR, steps, SpO2) and produces a coaching plan. The verb 'interpret' is specific, the resource is well-defined, and the output is explicit. It clearly distinguishes itself from the many other timps_* tools by focusing on health coaching.

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 gives clear context on when to use the tool—whenever wearable/fitness data needs interpretation—by listing the data types it handles. However, it does not explicitly mention alternatives or exclusions, though the tool's specialty is obvious among the large set of siblings. The guidance is more implied than explicit, so a 4 is appropriate.

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