create_repo

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states that it creates a repository, but fails to disclose side effects (e.g., whether it makes an API call, sets default branches, affects user settings), permission requirements, or whether the operation is reversible.

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 simple sentence, which is concise and front-loaded. However, it is extremely terse, essentially restating the tool name with minimal elaboration. While not verbose, it lacks the informative structure expected for a tool with multiple parameters.

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 tool has 4 parameters, no output schema, and no annotations, the description is insufficiently complete. It does not explain what the response looks like, what side effects occur, or how to handle required versus optional parameters. The description is minimal and leaves the agent guessing about important operational details.

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 has 0% description coverage, and the description provides no additional meaning for the parameters. It doesn't mention the 'name' requirement, the 'private' default, or what 'auto_init' does. The description adds no value beyond the bare schema field names.

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 'Create a new GitHub repository' clearly states the specific action (create) and resource (GitHub repository). It distinguishes itself from sibling tools like list_repos, get_repo, and update_repo by indicating the exact operation.

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, nor does it mention any prerequisites or exclusions. For example, it doesn't clarify whether to use create_repo for organization repositories or personal ones, or how it relates to create_pull_request.

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