Exchange Google Health OAuth Code

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

Discloses that tokens are stored locally with 0600 permissions and never returned, adding security-relevant side effects beyond the annotations. Annotations already indicate it's not read-only, which is consistent.

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 sentences, front-loaded with purpose, perfectly concise with no extraneous text.

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?

Adequately covers the core exchange process and security details. Lacks mention of error cases or output format, but the presence of an output schema mitigates the need for description of return values.

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 50% (only 'code' has a description). The tool description does not elaborate on parameters or provide compensating information for the undocumented 'response_format' 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 clearly states the action: exchanging an OAuth authorization code for local tokens. It distinguishes from sibling 'google_health_get_auth_url' which handles the initial auth URL generation.

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?

Usage is implied as the step after obtaining an authorization code, but no explicit when-to-use, when-not-to-use, or alternative tool guidance is provided.

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