render_list_services

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

No annotations provided, so description must cover behavior. It only says 'list all services' but omits that it supports pagination (cursor param), filtering (type param), and likely returns a list of service objects. Does not mention auth requirements or rate limits.

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?

Single sentence, front-loaded with purpose. The 'etc.' is slightly vague but acceptable for listing examples. Very efficient.

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?

With no output schema and no annotations, the tool's return format is unclear. Pagination and filtering behaviors are implied by parameters but not explained. For a listing tool with 4 params, the description is too sparse.

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 coverage is 75% (3 of 4 parameters described in schema). Description adds no parameter meaning beyond the schema. Cursor param is undocumented in both schema and description. Meeting baseline 3 for high coverage but no added value.

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 it lists all Render services and gives concrete examples of service types (web services, static sites, cron jobs). This distinguishes it from sibling tools like render_get_service (single service) and render_list_deploys (deploys).

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?

No guidance on when to use this tool versus alternatives (e.g., render_get_service for a specific service). Does not mention pagination or filtering options despite the cursor and type parameters.

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