create_branch_tool

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

No annotations are provided, so the description carries full responsibility. It only says 'Create' without disclosing side effects, idempotency, required permissions, failure behavior if the branch already exists, or whether this operation alters repository state in ways the agent should expect.

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, grammatically complete sentence with zero wasted words. It communicates the core purpose immediately and does not repeat schema field details.

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?

The tool has a clear input schema and output schema, so technical parameter details are covered. However, given the absence of annotations, the description lacks important context such as branch naming rules, permission requirements, or how this differs from similar create operations, leaving it only minimally adequate.

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 100% for all three required parameters, so the schema already explains each parameter's meaning. The description adds no parameter-level nuance beyond what is already listed, which is acceptable but not valuable.

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 precise action ('Create a new branch') with a clear resource ('GitLab repository'). It is specific enough to distinguish this from sibling tools like delete_branch_tool, list_project_branches_tool, or create_merge_request_tool.

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 versus alternatives, nor any mention of prerequisites like permissions, or when not to use it. The description merely restates the action without providing decision guidance.

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