TestRail MCP Server

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

No annotations provided, so description carries full burden. 'Retrieves' clearly signals read-only behavior, but lacks disclosure of error handling (what happens if ID invalid?), auth requirements, or rate limiting typical for APIs.

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 action verb. Bilingual presentation is efficient with zero redundant words. Every element earns its place.

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?

Adequate for a simple getter with one parameter. No output schema exists, so description could ideally enumerate what 'details' includes, but 'Retrieves details' is acceptable for entity retrieval tools where the schema would normally document return fields.

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 100% with sectionId described as 'TestRail Section ID'. Description mentions 'by ID' which aligns with the parameter, but adds no additional semantic context (e.g., where to obtain valid IDs, format constraints) 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?

Specific verb (Retrieves) + resource (section) + scope (by ID). The singular form and ID reference clearly distinguishes this from sibling getSections (plural), indicating this fetches a single entity rather than a list.

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 explicit when-to-use guidance or alternatives mentioned. While 'by ID' implies use when you have a specific section identifier, there's no guidance on when to prefer this over getSections or prerequisites for the sectionId parameter.

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