Enrich Company with SIRET & SIREN

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

Annotations declare readOnlyHint and openWorldHint. Description adds cost, category, and field count (30+ fields), providing useful context beyond annotations. No contradiction.

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?

Front-loaded with title and key purpose. Includes useful but slightly redundant info (args section repeats schema). Could be more concise by merging the parameter explanation.

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, description adequately explains return fields (30+ legal fields) and includes cost and category. Sufficient for a simple single-parameter tool.

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?

Input schema has 100% coverage for the single parameter 'siret', which is described. Description adds the French-only restriction and clarifies that it accepts both SIRET and SIREN, adding marginal value over 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?

Description clearly states the tool enriches French companies using SIRET/SIREN, with specific verb and resource. Differentiates from siblings like derrick_enrich_companies and derrick_enrich_profile by specifying the French-only, government data source.

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?

Explicitly states 'FRENCH COMPANIES ONLY' and specifies input format (14-digit SIRET or 9-digit SIREN). However, no explicit alternatives for non-French companies are given, though the sibling list implies other tools.

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