TimeChimp MCP Server

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

No annotations are provided, so the description carries full burden. It states it's a retrieval operation, implying read-only behavior, but doesn't disclose pagination behavior (implied by 'top' and 'skip' parameters), rate limits, authentication needs, or what 'active_only' means in practice. This leaves significant behavioral gaps for an agent.

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, efficient sentence that directly states the tool's purpose without unnecessary words. It's front-loaded and wastes no space, making it easy for an agent to parse 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 no annotations and no output schema, the description is incomplete for a tool with 7 parameters. It doesn't explain return values (e.g., list structure, fields), error handling, or how parameters like 'filter' and 'orderby' (OData expressions) should be used, leaving the agent with insufficient context for reliable invocation.

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%, with all 7 parameters well-documented in the schema (e.g., 'top' for max results, 'skip' for pagination). The description adds no parameter semantics beyond the schema, so it meets the baseline of 3 where the schema does the heavy lifting.

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 ('Retrieve') and resource ('all mileage vehicles'), making the purpose immediately understandable. However, it doesn't differentiate this tool from sibling tools like 'get_mileage_vehicle_by_id' or 'get_mileage', which might retrieve specific vehicles or mileage records rather than vehicles themselves.

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 is provided on when to use this tool versus alternatives. With siblings like 'get_mileage_vehicle_by_id' (for a specific vehicle) and 'get_mileage' (for mileage records), the description lacks context on choosing between list vs. detail views or related resources.

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