create_account

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

Description indicates mutation ('Create'), consistent with readOnlyHint=false. However, no additional behavioral context like permission needs or side effects beyond the creation act.

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?

Description is direct and informative, though the list of account types adds length. No redundant information, but could be slightly more concise.

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 tool with 7 parameters and no output schema, the description covers account types but omits mention of optional organization_id fallback or return behavior. Adequate but incomplete.

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?

Description adds a comprehensive list of allowed account_type values beyond the schema's example, which enhances understanding. Schema descriptions cover 100% of parameters, so baseline is 3; the added enum list raises the score.

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 'Create a new account in the chart of accounts' with specific verb and resource. It lists all account types, distinguishing this tool from siblings like create_bill or create_expense.

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?

No explicit guidance on when to use versus alternatives (e.g., when to create vs update an account, or prerequisites). The description only states what it does, not context or exclusions.

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