approve_merge_request

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

With no annotations, the description carries the full burden of behavioral disclosure. It only says approval requires permissions, but doesn't mention whether approval is reversible, whether it can be applied multiple times, what side effects occur, or whether passing the sha prevents approving a stale merge request.

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 two short sentences with no filler, and the main action is front-loaded. It is concise, though arguably too sparse given the absence of annotations.

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 state-changing tool with no annotations and four parameters, the description lacks important context: when approval_password is required, how sha protects against stale approvals, and how approval differs from merge or unapprove. This is not enough for confident tool invocation.

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 already describes all four parameters with 100% coverage, so the description doesn't need to repeat them. However, the description adds no value about how parameters like sha or approval_password affect tool behavior.

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 action verb ('Approve') and a clear resource ('merge request'), so the agent knows what operation is intended. It doesn't explicitly differentiate itself from sibling tools like merge_merge_request or unapprove_merge_request, but the core action 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?

There is no guidance on when to use this tool rather than merge_merge_request, unapprove_merge_request, or get_merge_request_approval_state. The generic 'requires appropriate permissions' note doesn't help an agent select among these closely related siblings.

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