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

With no annotations provided, the description carries the full behavioral burden. It usefully discloses that discover/inspect/run are free and that failed vendor calls return an error, but it says nothing about side effects, permissions, idempotency, success response, or whether executing a vendor tool can mutate external state.

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 three short sentences, front-loaded with the core action and followed by billing and failure context. Every sentence is relevant and there is no filler.

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?

This is a meta-execution tool with nested params, no annotations, and no output schema. The description does not explain what a successful call returns, what happens to the nested params, or what external side effects may occur, leaving important execution context missing.

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 explains that id comes from finance_discover and params are documented via finance_inspect. The description only restates 'by id with params' and adds no syntax, format, or validation detail 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 a specific action: execute a finance tool by id with params. It is clear enough to distinguish this as the execution endpoint alongside discover/inspect, but it does not explicitly contrast itself with those siblings in the description text.

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 use when you already have a tool id, and the schema ties id to finance_discover and params to finance_inspect. However, it gives no explicit when-to-use guidance, no when-not-to-use conditions, and no direct comparison to the sibling tools.

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