createBranch

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

No annotations provided. The description only states the obvious mutation without disclosing required permissions, error handling (e.g., duplicate branch name), or side effects.

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 very concise (one sentence) and front-loads the core action. However, it might be too brief to fully inform.

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 required params, nested object, no output schema), the description is incomplete. It lacks context on branch naming rules, default source, or return values.

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 high (75%+), so the description adds no extra meaning beyond parameter names and schema descriptions. Baseline score applies.

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 clearly states the verb 'create' and the resource 'a branch in a repository'. It is specific enough to distinguish from tags and other operations, though it does not highlight unique aspects like source constraints.

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 alternatives (e.g., createTag, getBranch). No mention of prerequisites such as the existence of the repository or target commit.

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