setBusinessAccountBio

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

With no annotations provided, the description carries the behavioral disclosure burden. It adds the required 'can_change_bio' business bot right and states the success return value (True), which are not available in the schema. It does not describe error behavior or side effects, but those are minor for a simple setter.

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 two sentences with no filler. The action is front-loaded, and the second sentence contributes a permission requirement and success return, both of which an agent needs to know. Every sentence earns its place.

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?

For a simple two-parameter setter with full schema coverage and no output schema, the description covers the core behavioral contract: what it does, the required right, and the success return. It stops short of describing failure scenarios, but the information needed for basic invocation is present.

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 schema already documents both parameters, including the bio's 0-140 character limit and the empty-string removal behavior. The description does not add meaningful parameter-level detail beyond what the schema provides, so the baseline score of 3 is appropriate.

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 uses a specific verb and resource: 'Changes the bio of a managed business account.' It is easily distinguished from sibling tools like setBusinessAccountName or setBusinessAccountProfilePhoto because the target is explicitly the bio.

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 implies the tool is for changing the bio of a managed business account, but it does not explicitly state when to use it over alternatives or when not to use it. There is no reference to sibling tools or exclusion conditions; usage context is only implied.

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