create_account

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

Annotations provide key behavioral hints: readOnlyHint=false (confirms this is a write operation), openWorldHint=true (suggests flexible inputs), idempotentHint=false (non-idempotent), and destructiveHint=false (non-destructive). The description adds no additional behavioral context beyond confirming it's a creation operation, which aligns with annotations but doesn't elaborate on side effects, permissions, or error handling.

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, efficient sentence with no wasted words. It's front-loaded with the core action and context, making it easy to parse quickly.

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 complexity (5 parameters, write operation) and annotations covering safety/behavior, the description is minimally adequate. However, with 0% schema description coverage and no parameter explanations, it lacks detail needed for full understanding. The presence of an output schema mitigates this slightly by handling return values.

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 carries full burden for explaining parameters. It mentions 'specified budget' (hinting at budget_id) but doesn't explain other parameters like name, type, balance, or dry_run. This leaves key semantics undocumented, failing to compensate for the schema's lack of 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 states the action ('Create a new account') and the context ('in the specified budget'), which is specific and unambiguous. However, it doesn't distinguish this tool from sibling tools like 'list_accounts' or 'get_account' beyond the obvious creation vs. read operations.

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. It doesn't mention prerequisites (e.g., needing a valid budget_id), exclusions, or comparisons to sibling tools like 'list_accounts' for viewing accounts or 'update_transaction' for modifying financial data.

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