TimePRO MCP Server

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

No annotations are provided, so the description carries the full burden. It states the tool 'gets' categories, implying a read-only operation, but doesn't disclose behavioral traits like whether it requires authentication, returns a list or object, includes pagination, or has rate limits. For a tool with zero annotation coverage, this leaves significant gaps in understanding how it behaves.

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 two concise sentences with zero waste: the first states the purpose and examples, and the second adds context about usage. It's front-loaded with the core function, making it easy to scan and understand quickly.

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 the tool's low complexity (0 parameters, no output schema, no annotations), the description is adequate but not complete. It explains what categories are and provides examples, but lacks details on return format (e.g., list structure) or any behavioral constraints. For a simple read tool, this is minimally viable but could be more informative.

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?

The input schema has 0 parameters with 100% coverage, so no parameter documentation is needed. The description adds value by explaining what the tool returns (timesheet categories with examples), which compensates for the lack of output schema. This exceeds the baseline of 3 for high schema coverage.

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 the verb ('Get') and resource ('available timesheet categories'), and provides concrete examples (Development, Meeting, Admin) that illustrate what the tool returns. It distinguishes itself from siblings like list_timesheets by focusing on categories rather than timesheet entries. However, it doesn't explicitly contrast with other list_* tools (e.g., list_clients, list_projects), which keeps it from a perfect score.

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 implies usage by mentioning that categories 'categorize the type of work done,' suggesting this tool is for retrieving metadata needed to classify timesheets. However, it lacks explicit guidance on when to use this versus alternatives (e.g., before creating/updating a timesheet) or any prerequisites. The context is clear but not fully directive.

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