create_repo_webhook

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

With no annotations, the description alone must disclose behavioral traits. It only states the action, giving no information about authentication needs, return format, error behavior, idempotency, or rate limits. This is a significant gap for a mutation tool.

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 one short sentence, which is efficient but severely under-specified. It provides no structural value (e.g., key requirements, inputs, or expected behavior), making it more a tautology than genuinely concise.

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 tool with six parameters, nested objects, no output schema, and no annotations, this description is wholly inadequate. It gives no context about required fields, the shape of config, event filtering, or the response, leaving the agent to guess.

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 description coverage is only 17% (only 'name' has a description). The tool description adds no parameter information, leaving six parameters undocumented. This fails to compensate for the sparse schema, making it hard for an agent to know what values to supply.

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 states a clear action ('Create') and a specific resource ('a webhook for a repository'), which distinguishes it from other tools like list_repo_webhooks. It does not elaborate on the webhook's configuration or events, but the core purpose is 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 provides no guidance on when to use this tool versus alternatives. It does not mention any prerequisites, complementary tools (e.g., list_repo_webhooks to verify creation), or scenarios where this tool is inappropriate. There is no usage context at all.

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