update_branding

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

Annotations already declare idempotentHint=true and destructiveHint=false. The description redundantly states 'Idempotent' and adds 'Modifies an existing record in place,' which provides minimal extra context. No mention of authorization, rate limits, or side effects beyond annotations.

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 relatively concise with a clear structure, using an emoji and HTTP method header. However, it contains slight redundancy ('Update a branding' and 'Update an existing branding resource') and could be more compact without loss of meaning.

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 no output schema, the description lacks information about the response format, required permissions, and possible error states. The detailed body schema partially compensates, but for a write operation, more context (e.g., success/failure indicators) would be helpful.

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%, so the schema fully documents parameters. The description adds no additional meaning beyond the schema, merely repeating the update action. Baseline 3 is appropriate as the schema handles parameter descriptions.

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 identifies the tool as updating a branding resource, using the verb 'Update' and specifying the resource type. It also mentions the HTTP method and idempotent behavior. However, it does not distinguish this tool from sibling update tools like update_broadcast or update_connection, lacking differentiation.

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?

The description provides no guidance on when to use this tool versus alternatives, no prerequisites, and no exclusions. It merely states what the tool does without context for selection among similar update tools.

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