Require code owner approvals single branch

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

Annotations already declare the safety profile (write, non-destructive, non-idempotent, open-world), so the bar is lower. The description adds value by naming the error conditions (MissingParameterError, ParameterError) and roughly the return shape (wrapper plus a Branch model). It does not explain what the approval requirement actually does to the branch or what happens on repeat calls despite idempotentHint=false.

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 purpose is front-loaded in one good sentence, but the docstring boilerplate ('Args: **kwargs', Returns, Raises) is partly noise — **kwargs does not match the actual named schema properties. It is compact but not fully earning its lines.

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 7-parameter mutation tool with 0% schema description coverage and no output schema, the description leaves most parameters unexplained and gives a return type (Branch model) that seems odd for a code-owner-approval endpoint. The branch-required claim conflicts with the schema, which an agent may act on incorrectly.

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 coverage is 0% across 7 parameters, so the description must compensate, but it only mentions 'e.g., project_id, branch' and ignores ref, page, per_page, max_pages, and api_parameters entirely. Worse, it says MissingParameterError is raised if branch is missing, while the schema marks branch as optional with default null — a misleading signal about which params are required.

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 first sentence states a clear verb+resource+scope: 'Require code owner approvals for a specific branch in a project.' An agent can tell this is a branch-level code-owner approval setting rather than, say, protect_branch or get_protected_branch. It doesn't explicitly differentiate from sibling approval/permission tools, so it stops short of a 5.

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?

There is no guidance on when to use this versus alternatives like protect_branch, merge_request_level_approvals, or get_approval_state_merge_requests, and no prerequisites or exclusions. The agent gets a purpose but no routing logic.

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