auth_get_url

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the tool retrieves an OAuth authorization URL but doesn't describe behavioral traits such as whether this is a read-only operation, if it requires prior setup, potential rate limits, or what the output looks like (e.g., URL format). This is a significant gap for a tool with zero annotation coverage.

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, efficient sentence: 'Get OAuth authorization URL to authenticate with FreshBooks.' It is front-loaded with the core action and context, with zero wasted words. Every part of the sentence earns its place by clearly conveying the tool's function.

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 complexity of OAuth authentication and the lack of annotations and output schema, the description is incomplete. It doesn't explain what the authorization URL is used for, how it fits into the broader OAuth flow with sibling tools, or what the agent should expect as a result. For a tool in an authentication context with no structured data support, more detail is needed to guide proper usage.

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 tool has 0 parameters, and schema description coverage is 100%, meaning there are no parameters to document. The description doesn't need to add parameter semantics beyond what the schema provides. A baseline score of 4 is appropriate as the description compensates adequately by explaining the tool's purpose without unnecessary parameter details.

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: 'Get OAuth authorization URL to authenticate with FreshBooks.' It specifies the verb ('Get') and resource ('OAuth authorization URL'), and the context ('to authenticate with FreshBooks') provides meaningful direction. However, it doesn't explicitly differentiate from sibling tools like auth_exchange_code or auth_status, which handle different OAuth flow stages.

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 usage in the context of OAuth authentication with FreshBooks, suggesting it's for initiating the authorization flow. However, it lacks explicit guidance on when to use this tool versus alternatives (e.g., auth_exchange_code for token exchange or auth_status for checking authentication state). No exclusions or prerequisites are mentioned, leaving usage context somewhat vague.

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