Fitbit Privacy Audit

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

Annotations already declare readOnlyHint=true, destructiveHint=false, and idempotentHint=true, indicating safe read-only behavior. The description adds context by specifying it returns local privacy, cache, token-path, and env-presence posture without revealing secrets, which goes beyond the annotations by clarifying the scope and safety guarantee.

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 sentence that front-loads the key information: what the tool returns and a critical constraint (no secret values). Every word serves a purpose, and there is no redundancy.

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 tool has one optional parameter and an output schema. The description explains the core purpose and a safety guarantee, which is sufficient for a simple audit tool. However, it could improve by briefly noting the output format option (markdown/json) or clarifying that it is safe to call repeatedly. Overall, it is nearly complete given the tool's simplicity.

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 input schema has 0% description coverage, meaning no parameter descriptions are provided. The description does not mention the 'response_format' parameter or its enum values (markdown, json). Although the parameter name and enum are self-explanatory, the description fails to compensate for the lack of schema descriptions, which is a gap given the 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?

The description clearly states the tool returns local privacy, cache, token-path, and env-presence posture while explicitly noting it does not reveal secret values. This distinguishes it from siblings like fitbit_cache_status, which focus on specific aspects. The verb 'Return' and specific nouns give a precise purpose.

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 implies the tool should be used for auditing privacy posture without exposing secrets, but it does not explicitly state when to use it over alternatives like fitbit_cache_status or fitbit_connection_status. No when-not-to-use or prerequisite guidance is provided.

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