freshbooks_auth_url

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

The description adds 'Read-only; contacts nothing' beyond the annotations, clarifying that generating the URL has no external side effects. It also explains what happens after the user opens the URL (approval, redirect), which annotates are absent. This is valuable behavioral context that annotations alone do not provide.

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 with no wasted words. The first sentence front-loads the action and purpose, and the second efficiently directs the user to the next tool. Every phrase earns its place, and the description is not bloated despite including a mini flow explanation.

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 description fully covers the tool's role in the auth flow, the next sibling to call, and the safe read-only nature. Since there is no output schema, it could have described the return value (the consent URL) more explicitly, but 'Open it' strongly implies a URL is returned. Overall, the information is sufficient for a human or agent to use this tool correctly.

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 zero parameters, the schema already fully covers the input requirements. The baseline for 0 params is 4, and the description adds no unnecessary param detail; it naturally fits the no-input nature of the tool. No additional param semantics are needed.

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 uses a specific verb and resource ('Get the FreshBooks consent URL') and clearly states the purpose ('to authorise this connection'). It also distinguishes itself from sibling freshbooks_auth_exchange by specifying that the capture URL is the first step and the exchange is the follow-up, making the tool's role unambiguous.

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 usage context: open the consent URL, approve, land on redirect, then pass it to freshbooks_auth_exchange. This explicitly names the relevant sibling and explains the flow. It stops short of stating exclusions or alternative conditions, but for a 0-parameter auth-URL generator, the guidance is clear enough.

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