ebay_get_oauth_url

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

No annotations are provided, so the description carries full burden. It thoroughly discloses behavioral traits: it involves user interaction via browser, scopes differ by environment, tokens auto-refresh every 2 hours, authorization codes expire in ~5 minutes, and refresh tokens last 18 months. It also includes troubleshooting tips, making the behavior fully transparent.

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 lengthy but well-structured with sections (IMPORTANT, OAUTH FLOW, COMMON SCOPES, TROUBLESHOOTING). Each section adds value, and the main purpose is front-loaded. Minor redundancy could be trimmed, but overall it is efficient for the complexity.

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 and no output schema, the description is exceptionally complete. It covers the full flow, environment differences, common scopes, troubleshooting, and even references the next tool. No critical information is missing for correct 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?

Schema coverage is 100%, baseline 3. The description adds significant value beyond schema: it explains that omitting scopes uses defaults, redirectUri can come from environment variable, and provides a list of common scopes with details. It also clarifies the scope format (using +) and validation against environment. This greatly enhances understanding.

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 'Generate the eBay OAuth authorization URL for user consent', specifying the verb (generate), resource (OAuth authorization URL), and purpose. It distinguishes itself from the many sibling tools, which are unrelated to OAuth flow.

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 provides explicit step-by-step OAuth flow instructions (steps 1-4) and mentions the follow-up tool 'ebay_exchange_authorization_code'. It also explains when to use it (to initiate user consent) but does not explicitly state when not to use it or alternatives. The guidance is clear and actionable.

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