uvcs_branch_create_confirm

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

Annotations already declare the mutation profile (readOnlyHint=false, destructiveHint=false, idempotentHint=false). The description adds meaningful behavioral context beyond that: the required human-review/approval gate before execution. It does not detail exact side effects of branch creation, but with annotations present this is a solid addition.

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?

Three short sentences, front-loaded with the purpose and then the prerequisite. Slight redundancy between 'Requires prepare/confirm' and 'Confirms and executes a prepared operation,' but overall low waste.

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?

A mutation/confirm tool with no output schema and full schema coverage. The description supplies the missing behavioral gate (prepare + explicit user approval) that an agent needs to invoke it correctly, leaving only minor detail about side effects unstated.

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 100% and both parameters (token, confirmPhrase) are documented in the schema, so the baseline is 3. The description adds no parameter-specific detail about token lifecycle or the exact confirmPhrase beyond what the schema already states.

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?

States a specific verb and resource (create branch from a changeset or label) and clarifies it is the confirm step that 'executes a prepared operation.' Sibling differentiation from uvcs_branch_create_prepare is implied via 'Requires prepare/confirm' rather than named outright, but the schema token reference makes the pairing clear.

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?

Explicit precondition: 'Call only after the user has reviewed the prepared payload and explicitly approved this exact operation.' This is a clear gate that tells the agent when this tool is eligible, though it does not explicitly name the prepare tool to call first.

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