List newly registered companies

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

No annotations are provided, so the description carries the burden. It discloses that results are within a date window and can be filtered, but does not mention read-only nature, default behaviors, pagination, or ordering. For a listing tool, basic safety is implied but not explicit.

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?

Two concise sentences, front-loaded with the main purpose. No wasted words. Every phrase contributes meaning.

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 no output schema and six optional parameters, the description gives adequate context for a listing tool. It explains the core purpose and filters, but doesn't mention defaults or return structure. However, schema covers parameter defaults, so the description is sufficiently complete for the tool's simplicity.

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 has 100% coverage with descriptions for all parameters. Description adds context by tying 'recent date window' to date parameters and 'municipality and legal form' to filters, but does not add meaning beyond schema. Baseline 3 is appropriate.

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?

Title 'List newly registered companies' and description 'Companies entered into the register within a recent date window' clearly states the verb (list) and resource (company registrations). It distinguishes from siblings by focusing on recent registration dates rather than general search or specific company details.

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?

Description provides clear context: 'Useful for tracking new business activity in an area.' This implies when to use the tool. However, it does not explicitly mention alternatives or exclusions (e.g., when not to use vs search_companies).

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