Weatherapi Com 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 mentions the tool 'allows a user to get' information, implying a read-only operation, but doesn't disclose behavioral traits like rate limits, authentication needs, error handling, or data freshness guarantees. The description is minimal and lacks critical operational details.

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 front-loads the core purpose. It avoids unnecessary words and directly states the tool's function. However, it could be slightly more structured by separating key points (e.g., output format, input types).

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 complexity (API with various query types), lack of annotations, and no output schema, the description is incomplete. It doesn't explain return values, error cases, or practical usage examples. The schema handles parameters well, but the description fails to provide sufficient context for effective tool 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 the parameter 'q' fully documented in the schema. The description adds no additional parameter semantics beyond what's in the schema. According to rules, with high schema coverage (>80%), the baseline is 3 even with no param info in the description.

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 tool's purpose: 'get up to date time zone and local time information in json.' It specifies the verb ('get'), resource ('time zone and local time information'), and output format ('json'). However, it doesn't explicitly differentiate from sibling tools like ip_lookup_api or searchautocomplete_api that might also provide location-based data.

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 provides no guidance on when to use this tool versus alternatives. It doesn't mention sibling tools or clarify scenarios where this API is preferred over others (e.g., vs. ip_lookup_api for IP-based time zones). Usage context is implied but not stated.

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