git_create_branch_tool

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

No annotations provided, so the description carries full burden. It does not disclose side effects (e.g., whether the new branch is automatically checked out, what happens if the base branch doesn't exist, or whether it overwrites an existing branch). This omission is critical for an AI agent.

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?

Single sentence, no fluff. Every word adds value: 'Creates', 'new branch', 'optional base branch' are all necessary and sufficient.

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 tool's simplicity, the description covers the basic action. However, it lacks information on preconditions (e.g., repo exists, branch doesn't exist) and postconditions (e.g., stays on current branch). An output schema exists but isn't described, so return value context is missing. Adequate but with gaps.

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%, so the baseline is 3. The description adds no extra meaning beyond the schema: 'optional base branch' is already stated by the schema's default null and description of base_branch.

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 it creates a branch, differentiating from sibling tools like git_branch_tool (which likely lists/deletes) and git_checkout_tool (which switches). It specifies the optional base branch, adding precision.

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 like git_checkout_tool or when to avoid it (e.g., if a branch name already exists). The description only states what it does, not when to use it.

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