set_default_account

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

No annotations are provided, so the description carries the full behavioral disclosure burden. It states the immediate effect of setting a default account but does not disclose whether the change persists across sessions, whether it overrides previous defaults, whether the label must reference an existing configured account, or what error behavior occurs for an invalid label.

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 a single concise sentence that front-loads the verb and object. Every word contributes meaning, and there is no redundant restating of the tool name or schema. The scoping condition is included efficiently.

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 one-parameter setter with an output schema, the description gives the core semantics and usage condition. However, with no annotations and no parameter explanation, it omits important context around label validity, persistence, and side effects. It is minimally adequate but not fully complete.

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 0%, so the description must compensate for the bare `label: string` parameter. It does not explain what `label` should contain, how it maps to configured accounts, whether it needs to match an existing account label exactly, or any format constraints. The only weak semantic hint is the phrase 'configured account,' which is not tied directly to the parameter.

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 ('Set') with a concrete resource ('which configured account') and a precise condition ('when a tool's `account` arg is omitted'). This clearly distinguishes the tool from sibling account-management tools like list_accounts, add_account, remove_account, and account_info, which handle listing, adding, removing, or inspecting accounts rather than changing the default fallback.

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 gives clear context about when the tool matters: it affects behavior only when the `account` argument is omitted from other tool calls. It does not explicitly name alternatives or exclusions, but no sibling tool appears to serve the same default-setting purpose, so the guidance is sufficient for an agent to select this tool.

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