generate_express_api_routes

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

No annotations are provided, so the description carries the full burden of disclosing side effects and behavior. It mentions that the tool generates routes, validation, and OpenAPI docs, but does not state whether it writes files, overwrites existing code, requires the api_key to unlock the Pro feature, or what the invocation result looks like.

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 a single focused sentence that front-loads the core purpose and keeps the Pro caveat to a short parenthetical. There is no filler or unnecessary elaboration.

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?

The tool has no annotations and no output schema, and the description does not explain how generated routes are delivered, whether the filesystem is modified, or how authenticated Pro access works. For a generation tool, the missing side-effect and authentication context is a significant gap.

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 parameters are already documented with meaningful descriptions such as 'Resource names for CRUD routes' and 'Use API versioning.' The tool description adds no parameter-specific meaning beyond the schema, so the baseline score of 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?

The description clearly states a specific deliverable: 'Generate RESTful API routes with validation and OpenAPI docs.' This conveys what the tool produces and distinguishes it from nearby siblings like generate_express_middleware or scaffold_express_project. However, it does not explicitly mention Express or contrast with rest_generate_routes, so the differentiation is partially left to the tool name.

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 gives no guidance on when to use this tool versus alternatives such as rest_generate_routes, docs_generate_openapi, or scaffold_express_project. The parenthetical 'Pro feature' hints at an entitlement condition, but there is no explicit when-to-use or when-not-to-use context.

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