get_pull_request_diff

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

No annotations are provided, so the description carries full responsibility for behavioral disclosure. It only says 'Get', implying a read operation, but does not disclose details such as diff format, size limits, authentication requirements, or whether the diff includes metadata. Minimal beyond the tool's name.

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 concise sentence with no filler, repetition, or unnecessary details. It is front-loaded and immediately communicates the tool's purpose.

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 one-parameter read tool with an output schema, the description adequately communicates the core purpose, but it lacks usage context and behavioral details. It is minimally viable but leaves the agent with little guidance beyond the basic action.

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 input schema has one required parameter, pull_request_id, with 0% schema description coverage. The description does not add any meaning beyond the parameter name and integer type, failing to compensate for the low coverage, although the parameter is self-explanatory.

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 ('Get') and a clear resource ('a pull request's diff'), which unambiguously distinguishes it from sibling tools like get_pull_request, get_pull_request_commits, and get_pull_request_statuses. It states exactly what the tool does.

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 when the caller needs the diff of a pull request, but it provides no explicit guidance on when to use this tool versus alternatives, no exclusions, and no prerequisites. It is clear but does not actively direct selection.

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