get_copilot_seat_details_for_user

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

With no annotations provided, the description fully carries the burden. It discloses access requirements (org owner, manage_billing:copilot or read:org scope), data limitations (telemetry must be enabled), and error semantics (404/403). It also links to official docs for further reference. This is far beyond minimal disclosure.

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 detailed but appropriately sized for a complex API. It opens with a one-line purpose, then lists return fields, then conditions and errors. Every sentence contributes value; no redundancy. Slightly long, but each clause is informative, so it stays within reasonable bounds.

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?

For a two-parameter tool with no output schema, the description is remarkably complete. It enumerates the specific data points returned, the prerequisites (active seat, telemetry, permissions), and the exact error conditions. An agent could invoke this tool confidently without consulting external docs.

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 schema already provides 100% coverage for both parameters (org and username). The description does not add meaningful per-parameter detail beyond what the schema states, so the baseline of 3 applies. It reinforces the scope but offers no new syntax or formatting guidance.

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 GitHub Copilot seat assignment details') and clearly scopes it to 'a specific member of an organization.' This distinguishes it from sibling tools like list_copilot_seats, which lists all seats, and get_copilot_organization_details, which covers org-level info.

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?

It clearly implies when to use this tool (for a single user's seat details) and provides contextual prerequisites (active seat, telemetry, org owner, specific scopes). It does not explicitly name alternatives, but the 'specific member' scoping plus error conditions (404, 403) give enough context to decide when this tool is appropriate.

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