Get Google Health OAuth URL

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

Annotations already convey readOnlyHint, idempotentHint, and destructiveHint. The description adds minimal behavioral detail beyond the usage guidance and the obvious URL generation. It does not elaborate on the OAuth flow, redirect, or user interaction required.

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 highly concise, consisting of two short sentences that each serve a distinct purpose: stating the tool's function and providing usage guidance. No extraneous information is present.

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 simplicity of the tool (generating an OAuth URL with three parameters) and the presence of an output schema, the description is largely complete. It could be slightly improved by indicating that this is the first step in a two-step OAuth flow, but it is sufficient.

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?

With 67% schema description coverage, the input schema already explains two of three parameters. The description does not add any extra semantics or constraints beyond the schema, so it meets the baseline for this dimension.

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 generates a Google OAuth authorization URL for the Google Health API. It directly describes the verb and resource, and while it doesn't explicitly distinguish from sibling tools, the distinction is clear given the presence of google_health_exchange_code for the next step.

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 includes explicit guidance: 'Use this first when no local token exists.' This provides clear context for when to invoke the tool, though it lacks mention of when not to use it or alternatives (e.g., skipping if token already exists).

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