github_repos_add_user_access_restrictions

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

No annotations are provided, so the description should disclose behavioral traits. It only says 'add' implying mutation, but does not explain side effects (e.g., replaces existing restrictions?), required permissions, idempotency, or the structure of the body parameter.

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 too brief, consisting of a single short phrase. It sacrifices clarity and completeness for brevity, missing crucial information about the tool's operation.

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 (4 params, nested body, no output schema) and lack of annotations, the description is insufficient. It does not explain the purpose of the body parameter, the effect of the operation, or what a successful response looks like.

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 descriptions are trivial (parameter names and 'Request body (JSON object)'), but coverage is 100%. The description adds no extra meaning, so baseline 3 is appropriate.

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 'Add user access restrictions', which indicates the verb and resource but does not specify what entity the restrictions apply to (e.g., branch). Siblings like 'add_app_access_restrictions' and 'add_team_access_restrictions' imply this is for users on a protected branch, but the description alone is vague.

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?

No guidance on when to use this tool versus related tools like 'github_repos_add_team_access_restrictions' or 'github_repos_remove_user_access_restrictions'. There is no mention of prerequisites, context, or alternatives.

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