Receipts Update Receipt Settings

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

Annotations already indicate readOnlyHint=false and openWorldHint=true. The description adds that it 'may create or update Monarch data,' which is consistent with openWorldHint but lacks detail on side effects, permissions, or reversibility. No contradiction with 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 very short (two sentences) and concise, but it lacks structure. Key information about the tool's effect and parameters is missing, making it cryptic rather than clear.

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 5 parameters, no output schema, and sparse annotations, the description is incomplete. It does not explain what receipt settings are, how they are updated, or what values are allowed for parameters like 'auto_categorize'. An agent would struggle to invoke this tool correctly.

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 only 40% (2 of 5 parameters have descriptions). The tool description does not explain any of the parameters, leaving agents to guess the purpose of 'session_path', 'auto_categorize', and 'update_transaction_notes'. No parameter-level information is provided beyond the schema.

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 states 'Update receipt settings' which is a clear verb+resource, but it does not differentiate from sibling tools like receipts_update_receipt. The phrase 'may create or update Monarch data' adds vague context but doesn't specify what settings are affected.

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?

There is no guidance on when to use this tool versus alternatives, no when-not-to-use instructions, and no mention of prerequisites or context. The description is purely functional.

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